Goodbye @Mod, it was lovely knowing you!

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
-#Mon Sep 14 12:28:28 PDT 2015
+#Sat Mar 10 11:15:39 EST 2018
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-2.14-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-bin.zip

gradlew

@@ -6,12 +6,30 @@
 ##
 ##############################################################################
 
-# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+# Attempt to set APP_HOME
-DEFAULT_JVM_OPTS=""
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME="`pwd -P`"
+cd "$SAVED" >/dev/null
 
 APP_NAME="Gradle"
 APP_BASE_NAME=`basename "$0"`
 
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
 # Use the maximum available, or set MAX_FD != -1 to use that value.
 MAX_FD="maximum"
 
@@ -30,6 +48,7 @@ die ( ) {
 cygwin=false
 msys=false
 darwin=false
+nonstop=false
 case "`uname`" in
   CYGWIN* )
     cygwin=true
@@ -40,31 +59,11 @@ case "`uname`" in
   MINGW* )
     msys=true
     ;;
+  NONSTOP* )
+    nonstop=true
+    ;;
 esac
 
-# For Cygwin, ensure paths are in UNIX format before anything is touched.
-if $cygwin ; then
-    [ -n "$JAVA_HOME" ] && JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
-fi
-
-# Attempt to set APP_HOME
-# Resolve links: $0 may be a link
-PRG="$0"
-# Need this for relative symlinks.
-while [ -h "$PRG" ] ; do
-    ls=`ls -ld "$PRG"`
-    link=`expr "$ls" : '.*-> \(.*\)$'`
-    if expr "$link" : '/.*' > /dev/null; then
-        PRG="$link"
-    else
-        PRG=`dirname "$PRG"`"/$link"
-    fi
-done
-SAVED="`pwd`"
-cd "`dirname \"$PRG\"`/" >&-
-APP_HOME="`pwd -P`"
-cd "$SAVED" >&-
-
 CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
 
 # Determine the Java command to use to start the JVM.
@@ -90,7 +89,7 @@ location of your Java installation."
 fi
 
 # Increase the maximum file descriptors if we can.
-if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then
+if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
     MAX_FD_LIMIT=`ulimit -H -n`
     if [ $? -eq 0 ] ; then
         if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
@@ -114,6 +113,7 @@ fi
 if $cygwin ; then
     APP_HOME=`cygpath --path --mixed "$APP_HOME"`
     CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+    JAVACMD=`cygpath --unix "$JAVACMD"`
 
     # We build the pattern for arguments to be converted via cygpath
     ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`

gradlew.bat

@@ -8,14 +8,14 @@
 @rem Set local scope for the variables with windows NT shell
 if "%OS%"=="Windows_NT" setlocal
 
-@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-set DEFAULT_JVM_OPTS=
-
 set DIRNAME=%~dp0
 if "%DIRNAME%" == "" set DIRNAME=.
 set APP_BASE_NAME=%~n0
 set APP_HOME=%DIRNAME%
 
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
 @rem Find java.exe
 if defined JAVA_HOME goto findJavaFromJavaHome
 
@@ -46,7 +46,7 @@ echo location of your Java installation.
 goto fail
 
 :init
-@rem Get command-line arguments, handling Windowz variants
+@rem Get command-line arguments, handling Windows variants
 
 if not "%OS%" == "Windows_NT" goto win9xME_args
 if "%@eval[2+2]" == "4" goto 4NT_args

src/main/java/net/minecraftforge/common/config/ConfigManager.java

@@ -41,7 +41,7 @@ import net.minecraftforge.fml.common.Loader;
 import net.minecraftforge.fml.common.LoaderException;
 import net.minecraftforge.fml.common.discovery.ASMDataTable;
 import net.minecraftforge.fml.common.discovery.ASMDataTable.ASMData;
-import net.minecraftforge.fml.common.discovery.asm.ModAnnotation.EnumHolder;
+import net.minecraftforge.fml.loading.moddiscovery.ModAnnotation.EnumHolder;
 
 import org.apache.commons.lang3.StringUtils;
 

src/main/java/net/minecraftforge/fml/FMLConfig.java

@@ -0,0 +1,85 @@
+/*
+ * Minecraft Forge
+ * Copyright (c) 2018.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation version 2.1
+ * of the License.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+package net.minecraftforge.fml;
+
+import com.google.gson.Gson;
+import com.google.gson.reflect.TypeToken;
+import net.minecraftforge.fml.common.FMLPaths;
+
+import java.io.BufferedWriter;
+import java.io.IOException;
+import java.lang.reflect.Type;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.HashMap;
+import java.util.Map;
+
+import static net.minecraftforge.fml.Logging.fmlLog;
+
+public class FMLConfig
+{
+    private static FMLConfig INSTANCE;
+    private final Map<String, String> configData = new HashMap<>();
+
+    private FMLConfig() {
+        configData.putAll(defaultValues());
+    }
+
+    private Map<String,String> defaultValues() {
+        final Map<String,String> result = new HashMap<>();
+        result.put("splashscreen", "true");
+        return result;
+    }
+
+    private void loadFrom(final Path configFile) throws IOException
+    {
+        final Type type = new TypeToken<Map<String, String>>() {}.getType();
+        final Gson gson = new Gson();
+        final Map<String,String> loadedConfig = gson.fromJson(Files.newBufferedReader(configFile), type);
+        if (loadedConfig != null)
+            configData.putAll(loadedConfig);
+    }
+
+    private void saveConfigIfNecessary(final Path configFile) throws IOException {
+        final Type type = new TypeToken<Map<String, String>>() {}.getType();
+        final Gson gson = new Gson();
+        final BufferedWriter writer = Files.newBufferedWriter(configFile);
+        gson.toJson(configData, type, writer);
+        writer.flush();
+    }
+    public static void load()
+    {
+        final Path configFile = FMLPaths.FMLCONFIG.get();
+        INSTANCE = new FMLConfig();
+        try
+        {
+            if (Files.exists(configFile))
+            {
+                INSTANCE.loadFrom(configFile);
+            }
+            INSTANCE.saveConfigIfNecessary(configFile);
+        }
+        catch (IOException ioe)
+        {
+            fmlLog.error("Unable to read FML config at {}", configFile, ioe);
+            throw new RuntimeException("Unable to read FML config", ioe);
+        }
+    }
+}

src/main/java/net/minecraftforge/fml/FileUtils.java

@@ -0,0 +1,51 @@
+/*
+ * Minecraft Forge
+ * Copyright (c) 2018.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation version 2.1
+ * of the License.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+package net.minecraftforge.fml;
+
+import java.io.IOException;
+import java.nio.file.FileAlreadyExistsException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+
+import static net.minecraftforge.fml.Logging.fmlLog;
+
+public class FileUtils
+{
+    public static Path getOrCreateDirectory(Path dirPath, String dirLabel) {
+        if (!Files.isDirectory(dirPath))
+        {
+            fmlLog.debug("Making {} directory : {}", dirLabel, dirPath);
+            try {
+                Files.createDirectory(dirPath);
+            } catch (IOException e) {
+                if (e instanceof FileAlreadyExistsException) {
+                    fmlLog.error("Failed to create {} directory - there is a file in the way", dirLabel);
+                } else {
+                    fmlLog.error("Problem with creating {} directory (Permissions?)", dirLabel, e);
+                }
+                throw new RuntimeException("Problem creating directory", e);
+            }
+            fmlLog.debug("Created {} directory : {}", dirLabel, dirPath);
+        } else {
+            fmlLog.debug("Found existing {} directory : {}", dirLabel, dirPath);
+        }
+        return dirPath;
+    }
+}

src/main/java/net/minecraftforge/fml/LaunchTesting.java

@@ -0,0 +1,33 @@
+/*
+ * Minecraft Forge
+ * Copyright (c) 2018.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation version 2.1
+ * of the License.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+package net.minecraftforge.fml;
+
+import cpw.mods.modlauncher.Launcher;
+import org.apache.logging.log4j.Level;
+import org.apache.logging.log4j.core.config.Configurator;
+
+public class LaunchTesting
+{
+    public static void main(String... args)
+    {
+        Configurator.setRootLevel(Level.DEBUG);
+        Launcher.main("--launchTarget", "fml","--gameDir", "projects/run");
+    }
+}

src/main/java/net/minecraftforge/fml/Logging.java

@@ -0,0 +1,30 @@
+/*
+ * Minecraft Forge
+ * Copyright (c) 2018.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation version 2.1
+ * of the License.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+package net.minecraftforge.fml;
+
+import org.apache.logging.log4j.Level;
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+import org.apache.logging.log4j.core.config.Configurator;
+
+public class Logging
+{
+    public static final Logger fmlLog = LogManager.getLogger("FML");
+}

src/main/java/net/minecraftforge/fml/common/AutomaticEventSubscriber.java

@@ -25,9 +25,8 @@ import com.google.common.collect.SetMultimap;
 import net.minecraftforge.common.MinecraftForge;
 import net.minecraftforge.fml.common.discovery.ASMDataTable;
 import net.minecraftforge.fml.common.discovery.ASMDataTable.ASMData;
-import net.minecraftforge.fml.common.discovery.asm.ModAnnotation;
+import net.minecraftforge.fml.loading.moddiscovery.ModAnnotation;
 import net.minecraftforge.fml.relauncher.Side;
-import org.apache.logging.log4j.Level;
 
 import java.util.EnumSet;
 import java.util.List;

src/main/java/net/minecraftforge/fml/common/FMLPaths.java

@@ -0,0 +1,84 @@
+/*
+ * Minecraft Forge
+ * Copyright (c) 2018.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation version 2.1
+ * of the License.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+package net.minecraftforge.fml.common;
+
+import cpw.mods.modlauncher.api.IEnvironment;
+import net.minecraftforge.fml.FileUtils;
+
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.util.Arrays;
+import java.util.Objects;
+
+import static net.minecraftforge.fml.Logging.fmlLog;
+
+public enum FMLPaths
+{
+    GAMEDIR(),
+    MODSDIR("mods"),
+    CONFIGDIR("config"),
+    FMLCONFIG(false, CONFIGDIR, "fml.cfg");
+
+    private final Path relativePath;
+    private final boolean isDirectory;
+    private Path absolutePath;
+
+    FMLPaths() {
+        this("");
+    }
+
+    FMLPaths(String... path) {
+        relativePath = computePath(path);
+        this.isDirectory = true;
+    }
+
+    private Path computePath(String... path)
+    {
+        return Paths.get(path[0], Arrays.copyOfRange(path, 1, path.length));
+    }
+
+    FMLPaths(boolean isDir, FMLPaths parent, String... path) {
+        this.relativePath = parent.relativePath.resolve(computePath(path));
+        this.isDirectory = isDir;
+    }
+
+    public static void setup(IEnvironment env) {
+        final Path rootPath = env.getProperty(IEnvironment.Keys.GAMEDIR.get()).orElseThrow(() -> new RuntimeException("No game path found"));
+
+        loadAbsolutePaths(rootPath);
+    }
+
+    public static void loadAbsolutePaths(Path rootPath)
+    {
+        for (FMLPaths path : FMLPaths.values())
+        {
+            path.absolutePath = rootPath.resolve(path.relativePath).toAbsolutePath();
+            fmlLog.debug("Path {} is {}", ()-> path, ()-> path.absolutePath);
+            if (path.isDirectory)
+            {
+                FileUtils.getOrCreateDirectory(path.absolutePath, path.name());
+            }
+        }
+    }
+
+    public Path get() {
+        return absolutePath;
+    }
+}

src/main/java/net/minecraftforge/fml/common/ModContainerFactory.java

@@ -22,11 +22,10 @@ package net.minecraftforge.fml.common;
 import java.io.File;
 import java.lang.reflect.Constructor;
 import java.util.Map;
-import java.util.regex.Pattern;
 
 import net.minecraftforge.fml.common.discovery.ModCandidate;
 import net.minecraftforge.fml.common.discovery.asm.ASMModParser;
-import net.minecraftforge.fml.common.discovery.asm.ModAnnotation;
+import net.minecraftforge.fml.loading.moddiscovery.ModAnnotation;
 
 import org.objectweb.asm.Type;
 

src/main/java/net/minecraftforge/fml/common/discovery/asm/ASMModParser.java

@@ -29,6 +29,8 @@ import net.minecraftforge.fml.common.LoaderException;
 import net.minecraftforge.fml.common.discovery.ASMDataTable;
 import net.minecraftforge.fml.common.discovery.ModCandidate;
 
+import net.minecraftforge.fml.loading.moddiscovery.ModAnnotation;
+import net.minecraftforge.fml.loading.moddiscovery.ModClassVisitor;
 import org.objectweb.asm.ClassReader;
 import org.objectweb.asm.Type;
 

src/main/java/net/minecraftforge/fml/common/discovery/asm/ModClassVisitor.java

@@ -1,64 +0,0 @@
-/*
- * Minecraft Forge
- * Copyright (c) 2016-2018.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation version 2.1
- * of the License.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
- */
-
-package net.minecraftforge.fml.common.discovery.asm;
-
-import org.objectweb.asm.AnnotationVisitor;
-import org.objectweb.asm.ClassVisitor;
-import org.objectweb.asm.FieldVisitor;
-import org.objectweb.asm.MethodVisitor;
-import org.objectweb.asm.Opcodes;
-
-public class ModClassVisitor extends ClassVisitor
-{
-    private ASMModParser discoverer;
-
-    public ModClassVisitor(ASMModParser discoverer)
-    {
-        super(Opcodes.ASM5);
-        this.discoverer = discoverer;
-    }
-
-
-    @Override
-    public void visit(int version, int access, String name, String signature, String superName, String[] interfaces)
-    {
-        discoverer.beginNewTypeName(name, version, superName, interfaces);
-    }
-
-    @Override
-    public AnnotationVisitor visitAnnotation(String annotationName, boolean runtimeVisible)
-    {
-        discoverer.startClassAnnotation(annotationName);
-        return new ModAnnotationVisitor(discoverer);
-    }
-
-
-    @Override
-    public FieldVisitor visitField(int access, String name, String desc, String signature, Object value)
-    {
-        return new ModFieldVisitor(name, discoverer);
-    }
-
-    @Override
-    public MethodVisitor visitMethod(int access, String name, String desc, String signature, String[] exceptions)
-    {
-        return new ModMethodVisitor(name, desc, discoverer);
-    }
-}

src/main/java/net/minecraftforge/fml/common/discovery/json/ASMInfo.java

@@ -23,7 +23,6 @@ import java.util.List;
 import java.util.Map;
 import java.util.function.Function;
 
-import org.apache.commons.lang3.Validate;
 import org.objectweb.asm.Type;
 
 import com.google.common.base.MoreObjects;
@@ -31,7 +30,7 @@ import com.google.common.collect.Lists;
 import com.google.common.collect.Maps;
 
 import net.minecraftforge.fml.common.FMLLog;
-import net.minecraftforge.fml.common.discovery.asm.ModAnnotation.EnumHolder;
+import net.minecraftforge.fml.loading.moddiscovery.ModAnnotation.EnumHolder;
 
 //Package private, modders shouldn't access this. Do it through ASMDataTable.
 class ASMInfo

src/main/java/net/minecraftforge/fml/loading/FMLLaunchProvider.java

@@ -0,0 +1,46 @@
+/*
+ * Minecraft Forge
+ * Copyright (c) 2018.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation version 2.1
+ * of the License.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+package net.minecraftforge.fml.loading;
+
+import cpw.mods.modlauncher.api.ILaunchHandlerService;
+
+import java.nio.file.Path;
+import java.util.concurrent.Callable;
+
+public class FMLLaunchProvider implements ILaunchHandlerService
+{
+    @Override
+    public String name()
+    {
+        return "fml";
+    }
+
+    @Override
+    public Path[] identifyTransformationTargets()
+    {
+        return new Path[0];
+    }
+
+    @Override
+    public Callable<Void> launchService(String[] arguments, ClassLoader launchClassLoader)
+    {
+        return () -> { return null; };
+    }
+}

src/main/java/net/minecraftforge/fml/loading/FMLLoader.java

@@ -0,0 +1,62 @@
+/*
+ * Minecraft Forge
+ * Copyright (c) 2018.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation version 2.1
+ * of the License.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+package net.minecraftforge.fml.loading;
+
+import cpw.mods.modlauncher.api.IEnvironment;
+import cpw.mods.modlauncher.api.ITransformationService;
+import cpw.mods.modlauncher.api.IncompatibleEnvironmentException;
+import cpw.mods.modlauncher.serviceapi.ILaunchPluginService;
+import net.minecraftforge.common.ForgeVersion;
+import net.minecraftforge.fml.loading.moddiscovery.ModDiscoverer;
+
+import java.util.Set;
+
+import static net.minecraftforge.fml.Logging.fmlLog;
+
+public class FMLLoader
+{
+
+    private static ILaunchPluginService accessTransformer;
+    private static ModDiscoverer modDiscoverer;
+
+    static void initialize(IEnvironment environment, Set<String> otherServices) throws IncompatibleEnvironmentException
+    {
+        final String version = ForgeVersion.getVersion();
+        fmlLog.debug("FML {} loading", version);
+        final Package modLauncherPackage = ITransformationService.class.getPackage();
+        fmlLog.debug("FML found ModLauncher version : {}", modLauncherPackage.getImplementationVersion());
+        if (!modLauncherPackage.isCompatibleWith("1.0")) {
+            fmlLog.error("Found incompatible ModLauncher specification : {}, version {} from {}", modLauncherPackage.getSpecificationVersion(), modLauncherPackage.getImplementationVersion(), modLauncherPackage.getImplementationVendor());
+            throw new IncompatibleEnvironmentException("Incompatible modlauncher found "+modLauncherPackage.getSpecificationVersion());
+        }
+
+        accessTransformer = environment.findLaunchPlugin("accesstransformer").orElseThrow(()-> new IncompatibleEnvironmentException("Missing AccessTransformer, cannot run"));
+
+        final Package atPackage = accessTransformer.getClass().getPackage();
+        fmlLog.debug("FML found AccessTransformer version : {}", atPackage.getImplementationVersion());
+        if (!atPackage.isCompatibleWith("1.0")) {
+            fmlLog.error("Found incompatible AccessTransformer specification : {}, version {} from {}", atPackage.getSpecificationVersion(), atPackage.getImplementationVersion(), atPackage.getImplementationVendor());
+        }
+//        final ILaunchPluginService coreMod = environment.findLaunchPlugin("coremod").orElseThrow(()-> new IncompatibleEnvironmentException("Missing CoreMod, cannot run"));
+
+        fmlLog.debug("Scanning for Mod Locators");
+        modDiscoverer = new ModDiscoverer();
+    }
+}

src/main/java/net/minecraftforge/fml/loading/FMLServiceProvider.java

@@ -0,0 +1,90 @@
+/*
+ * Minecraft Forge
+ * Copyright (c) 2018.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation version 2.1
+ * of the License.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+package net.minecraftforge.fml.loading;
+
+import cpw.mods.modlauncher.api.IEnvironment;
+import cpw.mods.modlauncher.api.ITransformationService;
+import cpw.mods.modlauncher.api.ITransformer;
+import cpw.mods.modlauncher.api.IncompatibleEnvironmentException;
+import joptsimple.ArgumentAcceptingOptionSpec;
+import joptsimple.OptionSpecBuilder;
+import net.minecraftforge.fml.FMLConfig;
+import net.minecraftforge.fml.common.FMLPaths;
+
+import javax.annotation.Nonnull;
+import java.io.IOException;
+import java.util.Collections;
+import java.util.List;
+import java.util.Set;
+import java.util.function.BiFunction;
+
+import static net.minecraftforge.fml.Logging.fmlLog;
+
+public class FMLServiceProvider implements ITransformationService
+{
+
+    private ArgumentAcceptingOptionSpec<String> modsOption;
+    private ArgumentAcceptingOptionSpec<String> modListsOption;
+    private List<String> modsArgumentList;
+    private List<String> modListsArgumentList;
+
+    @Override
+    public String name()
+    {
+        return "fml";
+    }
+
+    @Override
+    public void initialize(IEnvironment environment)
+    {
+        fmlLog.debug("Setting up basic FML game directories");
+        FMLPaths.setup(environment);
+        fmlLog.debug("Loading configuration");
+        FMLConfig.load();
+    }
+
+    @Override
+    public void onLoad(IEnvironment environment, Set<String> otherServices) throws IncompatibleEnvironmentException
+    {
+        FMLLoader.initialize(environment, otherServices);
+    }
+
+    @Override
+    public void arguments(BiFunction<String, String, OptionSpecBuilder> argumentBuilder)
+    {
+        modsOption = argumentBuilder.apply("mods", "List of mods to add").withRequiredArg().ofType(String.class).withValuesSeparatedBy(",");
+        modListsOption = argumentBuilder.apply("modLists", "JSON modlists").withRequiredArg().ofType(String.class).withValuesSeparatedBy(",");
+    }
+
+    @Override
+    public void argumentValues(OptionResult option)
+    {
+        modsArgumentList = option.values(modsOption);
+        modListsArgumentList = option.values(modListsOption);
+    }
+
+    @Nonnull
+    @Override
+    public List<ITransformer> transformers()
+    {
+        return Collections.emptyList();
+    }
+
+}

src/main/java/net/minecraftforge/fml/loading/moddiscovery/BackgroundScanHandler.java

@@ -0,0 +1,79 @@
+/*
+ * Minecraft Forge
+ * Copyright (c) 2018.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation version 2.1
+ * of the License.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+package net.minecraftforge.fml.loading.moddiscovery;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.CompletableFuture;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import java.util.concurrent.TimeUnit;
+
+import static net.minecraftforge.fml.Logging.fmlLog;
+
+public class BackgroundScanHandler
+{
+    private final ExecutorService modContentScanner;
+    private final List<ModFile> pendingFiles;
+    private final List<ModFile> scannedFiles;
+    private final List<ModFile> allFiles;
+
+    public BackgroundScanHandler() {
+        modContentScanner = Executors.newCachedThreadPool();
+        scannedFiles = new ArrayList<>();
+        pendingFiles = new ArrayList<>();
+        allFiles = new ArrayList<>();
+    }
+
+    public void submitForScanning(final ModFile file) {
+        if (modContentScanner.isShutdown()) {
+            throw new IllegalStateException("Scanner has shutdown");
+        }
+        allFiles.add(file);
+        pendingFiles.add(file);
+        final CompletableFuture<ScanResult> future = CompletableFuture.supplyAsync(file::compileContent, modContentScanner)
+                .whenComplete(file::setScanResult)
+                .whenComplete((r,t)-> this.addCompletedFile(file,r,t));
+        file.setFutureScanResult(future);
+    }
+
+    private void addCompletedFile(final ModFile file, final ScanResult scanResult, final Throwable throwable) {
+        if (throwable != null) {
+            fmlLog.error("An error occurred scanning file {}", file, throwable);
+        }
+        pendingFiles.remove(file);
+        scannedFiles.add(file);
+    }
+
+    public List<ModFile> getScannedFiles() {
+        if (!pendingFiles.isEmpty()) {
+            modContentScanner.shutdown();
+            try {
+                modContentScanner.awaitTermination(Long.MAX_VALUE, TimeUnit.SECONDS);
+            } catch (InterruptedException e) {
+            }
+        }
+        return scannedFiles;
+    }
+
+    public List<ModFile> getAllFiles() {
+        return allFiles;
+    }
+}

src/main/java/net/minecraftforge/fml/loading/moddiscovery/CoreModFile.java

@@ -0,0 +1,42 @@
+/*
+ * Minecraft Forge
+ * Copyright (c) 2018.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation version 2.1
+ * of the License.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+package net.minecraftforge.fml.loading.moddiscovery;
+
+public class CoreModFile implements net.minecraftforge.forgespi.ICoreModFile {
+    private final java.nio.file.Path internalPath;
+    private final ModFile file;
+    private final String name;
+
+    CoreModFile(final String name, final java.nio.file.Path path, final ModFile file) {
+        this.name = name;
+        this.internalPath = path;
+        this.file = file;
+    }
+
+    @Override
+    public java.io.Reader readCoreMod() throws java.io.IOException {
+        return java.nio.file.Files.newBufferedReader(this.internalPath);
+    }
+
+    @Override
+    public java.nio.file.Path getPath() {
+        return this.internalPath;
+    }
+}

src/main/java/net/minecraftforge/fml/loading/moddiscovery/ExplodedDirectoryLocator.java

@@ -0,0 +1,70 @@
+/*
+ * Minecraft Forge
+ * Copyright (c) 2018.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation version 2.1
+ * of the License.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+package net.minecraftforge.fml.loading.moddiscovery;
+
+import java.io.IOException;
+import java.nio.file.FileSystems;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
+import java.util.function.Consumer;
+import java.util.stream.Stream;
+
+import static net.minecraftforge.fml.Logging.fmlLog;
+
+public class ExplodedDirectoryLocator implements IModLocator {
+    private static final String DIR = System.getProperty("fml.explodedDir", "modclasses");
+    private final Path rootDir;
+
+    ExplodedDirectoryLocator() {
+        this.rootDir = FileSystems.getDefault().getPath(DIR);
+    }
+
+    @Override
+    public List<ModFile> scanMods() {
+        return Collections.singletonList(new ModFile(rootDir, this));
+    }
+
+    @Override
+    public String name() {
+        return "exploded directory";
+    }
+
+    @Override
+    public Path findPath(final ModFile modFile, final String... path) {
+        if (path.length < 1) {
+            throw new IllegalArgumentException("Missing path");
+        }
+        return rootDir.resolve(FileSystems.getDefault().getPath(path[0], Arrays.copyOfRange(path, 1, path.length)));
+    }
+
+    @Override
+    public void scanFile(final ModFile modFile, final Consumer<Path> pathConsumer) {
+        fmlLog.debug("Scanning directory {}", rootDir);
+        try (Stream<Path> files = Files.find(rootDir, Integer.MAX_VALUE, (p, a) -> p.getNameCount() > 0 && p.getFileName().toString().endsWith(".class"))) {
+            files.forEach(pathConsumer);
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+        fmlLog.debug("Directory scan complete {}", rootDir);
+    }
+}

src/main/java/net/minecraftforge/fml/loading/moddiscovery/IModLocator.java

@@ -0,0 +1,42 @@
+/*
+ * Minecraft Forge
+ * Copyright (c) 2018.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation version 2.1
+ * of the License.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+package net.minecraftforge.fml.loading.moddiscovery;
+
+import java.nio.file.Path;
+import java.util.List;
+import java.util.Optional;
+import java.util.function.Consumer;
+import java.util.jar.Manifest;
+
+/**
+ * Loaded as a ServiceLoader. Takes mechanisms for locating candidate "mods"
+ * and transforms them into {@link ModFile} objects.
+ */
+public interface IModLocator {
+    List<ModFile> scanMods();
+
+    String name();
+
+    Path findPath(ModFile modFile, String... path);
+
+    void scanFile(final ModFile modFile, Consumer<Path> pathConsumer);
+
+    Optional<Manifest> findManifest(Path file);
+}

src/main/java/net/minecraftforge/fml/loading/moddiscovery/ModAnnotation.java

@@ -17,13 +17,12 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  */
 
-package net.minecraftforge.fml.common.discovery.asm;
+package net.minecraftforge.fml.loading.moddiscovery;
 
+import java.lang.annotation.ElementType;
 import java.util.ArrayList;
 import java.util.Map;
 
-import net.minecraftforge.fml.common.discovery.asm.ASMModParser.AnnotationType;
-
 import org.objectweb.asm.Type;
 
 import com.google.common.base.MoreObjects;
@@ -53,20 +52,21 @@ public class ModAnnotation
             return value;
         }
     }
-    AnnotationType type;
+    ElementType type;
     Type asmType;
     String member;
     Map<String,Object> values = Maps.newHashMap();
+
     private ArrayList<Object> arrayList;
     private String arrayName;
-    public ModAnnotation(AnnotationType type, Type asmType, String member)
+    public ModAnnotation(ElementType type, Type asmType, String member)
     {
         this.type = type;
         this.asmType = asmType;
         this.member = member;
     }
 
-    public ModAnnotation(AnnotationType type, Type asmType, ModAnnotation parent)
+    public ModAnnotation(ElementType type, Type asmType, ModAnnotation parent)
     {
         this.type = type;
         this.asmType = asmType;
@@ -81,7 +81,8 @@ public class ModAnnotation
                 .add("values", values)
                 .toString();
     }
-    public AnnotationType getType()
+
+    public ElementType getType()
     {
         return type;
     }
@@ -126,7 +127,7 @@ public class ModAnnotation
     }
     public ModAnnotation addChildAnnotation(String name, String desc)
     {
-        ModAnnotation child = new ModAnnotation(AnnotationType.SUBTYPE, Type.getType(desc), this);
+        ModAnnotation child = new ModAnnotation(ElementType.PARAMETER, Type.getType(desc), this);
         addProperty(name, child.getValues());
         return child;
     }

src/main/java/net/minecraftforge/fml/loading/moddiscovery/ModAnnotationVisitor.java

@@ -17,72 +17,79 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  */
 
-package net.minecraftforge.fml.common.discovery.asm;
+package net.minecraftforge.fml.loading.moddiscovery;
 
 import org.objectweb.asm.AnnotationVisitor;
 import org.objectweb.asm.Opcodes;
 
+import java.util.LinkedList;
+
 public class ModAnnotationVisitor extends AnnotationVisitor
 {
-    private ASMModParser discoverer;
+    private final ModAnnotation annotation;
+    private LinkedList<ModAnnotation> annotations;
     private boolean array;
     private String name;
     private boolean isSubAnnotation;
 
-    public ModAnnotationVisitor(ASMModParser discoverer)
+    public ModAnnotationVisitor(LinkedList<ModAnnotation> annotations, ModAnnotation annotation)
     {
         super(Opcodes.ASM5);
-        this.discoverer = discoverer;
+        this.annotations = annotations;
+        this.annotation = annotation;
     }
 
-    public ModAnnotationVisitor(ASMModParser discoverer, String name)
+    public ModAnnotationVisitor(LinkedList<ModAnnotation> annotations, ModAnnotation annotation, String name)
     {
-        this(discoverer);
+        this(annotations, annotation);
         this.array = true;
         this.name = name;
-        discoverer.addAnnotationArray(name);
+        annotation.addArray(name);
     }
 
-    public ModAnnotationVisitor(ASMModParser discoverer, boolean isSubAnnotation)
+    public ModAnnotationVisitor(LinkedList<ModAnnotation> annotations, ModAnnotation annotation, boolean isSubAnnotation)
     {
-        this(discoverer);
+        this(annotations, annotation);
         this.isSubAnnotation = true;
     }
 
     @Override
     public void visit(String key, Object value)
     {
-        discoverer.addAnnotationProperty(key, value);
+        annotation.addProperty(key, value);
     }
 
     @Override
     public void visitEnum(String name, String desc, String value)
     {
-        discoverer.addAnnotationEnumProperty(name, desc, value);
+        annotation.addEnumProperty(name, desc, value);
     }
 
     @Override
     public AnnotationVisitor visitArray(String name)
     {
-        return new ModAnnotationVisitor(discoverer, name);
+        return new ModAnnotationVisitor(annotations, annotation, name);
     }
     @Override
     public AnnotationVisitor visitAnnotation(String name, String desc)
     {
-        discoverer.addSubAnnotation(name, desc);
+        ModAnnotation ma = annotations.getFirst();
-        return new ModAnnotationVisitor(discoverer, true);
+        final ModAnnotation childAnnotation = ma.addChildAnnotation(name, desc);
+        annotations.addFirst(childAnnotation);
+        return new ModAnnotationVisitor(annotations, childAnnotation,true);
     }
     @Override
     public void visitEnd()
     {
         if (array)
         {
-            discoverer.endArray();
+            annotation.endArray();
         }
 
         if (isSubAnnotation)
         {
-            discoverer.endSubAnnotation();
+            ModAnnotation child = annotations.removeFirst();
+            annotations.addLast(child);
         }
     }
 }

src/main/java/net/minecraftforge/fml/loading/moddiscovery/ModClassVisitor.java

@@ -0,0 +1,84 @@
+/*
+ * Minecraft Forge
+ * Copyright (c) 2018.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation version 2.1
+ * of the License.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+package net.minecraftforge.fml.loading.moddiscovery;
+
+import org.objectweb.asm.AnnotationVisitor;
+import org.objectweb.asm.ClassVisitor;
+import org.objectweb.asm.FieldVisitor;
+import org.objectweb.asm.MethodVisitor;
+import org.objectweb.asm.Opcodes;
+import org.objectweb.asm.Type;
+
+import java.lang.annotation.ElementType;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Set;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
+public class ModClassVisitor extends ClassVisitor
+{
+    private Type asmType;
+    private Type asmSuperType;
+    private Set<Type> interfaces;
+    private final LinkedList<ModAnnotation> annotations = new LinkedList<>();
+    public ModClassVisitor()
+    {
+        super(Opcodes.ASM5);
+    }
+
+
+    @Override
+    public void visit(int version, int access, String name, String signature, String superName, String[] interfaces)
+    {
+        this.asmType = Type.getObjectType(name);
+        this.asmSuperType = superName != null && superName.length() > 0 ? Type.getObjectType(superName) : null;
+        this.interfaces = Stream.of(interfaces).map(Type::getObjectType).collect(Collectors.toSet());
+    }
+
+    @Override
+    public AnnotationVisitor visitAnnotation(final String annotationName, final boolean runtimeVisible)
+    {
+        ModAnnotation ann = new ModAnnotation(ElementType.TYPE, Type.getType(annotationName), this.asmType.getClassName());
+        annotations.addFirst(ann);
+        return new ModAnnotationVisitor(annotations, ann);
+    }
+
+
+    @Override
+    public FieldVisitor visitField(int access, String name, String desc, String signature, Object value)
+    {
+        return new ModFieldVisitor(name, annotations);
+    }
+
+    @Override
+    public MethodVisitor visitMethod(int access, String name, String desc, String signature, String[] exceptions)
+    {
+        return new ModMethodVisitor(name, desc, annotations);
+    }
+
+    public void buildData(final List<ScanResult.ClassData> classes, final List<ScanResult.AnnotationData> annotations) {
+        classes.add(new ScanResult.ClassData(this.asmType, this.asmSuperType, this.interfaces));
+        final List<ScanResult.AnnotationData> collect = this.annotations.stream().filter(ScanResult::interestingAnnotations).
+                map(a -> ScanResult.AnnotationData.fromModAnnotation(this.asmType, a)).collect(Collectors.toList());
+        annotations.addAll(collect);
+    }
+
+}

src/main/java/net/minecraftforge/fml/loading/moddiscovery/ModDiscoverer.java

@@ -0,0 +1,66 @@
+/*
+ * Minecraft Forge
+ * Copyright (c) 2018.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation version 2.1
+ * of the License.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+package net.minecraftforge.fml.loading.moddiscovery;
+
+import cpw.mods.modlauncher.ServiceLoaderStreamUtils;
+
+import java.util.Collection;
+import java.util.List;
+import java.util.Map;
+import java.util.ServiceLoader;
+import java.util.stream.Collectors;
+
+import static net.minecraftforge.fml.Logging.fmlLog;
+
+public class ModDiscoverer {
+    private final ServiceLoader<IModLocator> locators;
+    private final List<IModLocator> locatorList;
+
+    public ModDiscoverer() {
+        locators = ServiceLoader.load(IModLocator.class);
+        locatorList = ServiceLoaderStreamUtils.toList(this.locators);
+        fmlLog.debug("Found Mod Locators : {}", ()->locatorList.stream().map(IModLocator::name).collect(Collectors.joining(",")));
+    }
+
+    ModDiscoverer(List<IModLocator> locatorList) {
+        this.locatorList = locatorList;
+        this.locators = null;
+    }
+
+    public BackgroundScanHandler discoverMods() {
+        fmlLog.debug("Scanning for mods and other resources to load. We know {} ways to find mods", locatorList.size());
+        final Map<ModFile.Type, List<ModFile>> modFiles = locatorList.stream()
+                .peek(loc -> fmlLog.debug("Trying locator {}", loc))
+                .map(IModLocator::scanMods)
+                .flatMap(Collection::stream)
+                .peek(mf -> fmlLog.debug("Found mod file {} of type {} with locator {}", mf.getFileName(), mf.getType(), mf.getLocator()))
+                .collect(Collectors.groupingBy(ModFile::getType));
+
+        ModLanguageProvider.loadAdditionalLanguages(modFiles.get(ModFile.Type.LANGPROVIDER));
+        BackgroundScanHandler backgroundScanHandler = new BackgroundScanHandler();
+        final List<ModFile> mods = modFiles.get(ModFile.Type.MOD);
+        mods.forEach(ModFile::identifyMods);
+        fmlLog.debug("Found {} mod files with {} mods", mods::size, ()->mods.stream().mapToInt(mf -> mf.getModInfos().size()).sum());
+        mods.stream().map(ModFile::getCoreMods).flatMap(List::stream).forEach(ServiceProviders.getCoreModProvider()::addCoreMod);
+        mods.forEach(backgroundScanHandler::submitForScanning);
+        return backgroundScanHandler;
+    }
+
+}

src/main/java/net/minecraftforge/fml/loading/moddiscovery/ModFieldVisitor.java

@@ -17,29 +17,33 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  */
 
-package net.minecraftforge.fml.common.discovery.asm;
+package net.minecraftforge.fml.loading.moddiscovery;
 
 import org.objectweb.asm.AnnotationVisitor;
 import org.objectweb.asm.FieldVisitor;
 import org.objectweb.asm.Opcodes;
+import org.objectweb.asm.Type;
+
+import java.lang.annotation.ElementType;
+import java.util.LinkedList;
 
 public class ModFieldVisitor extends FieldVisitor
 {
+    private final LinkedList<ModAnnotation> annotations;
+    private final String fieldName;
 
-    private String fieldName;
+    public ModFieldVisitor(String name, final LinkedList<ModAnnotation> annotations)
-    private ASMModParser discoverer;
-
-    public ModFieldVisitor(String name, ASMModParser discoverer)
     {
         super(Opcodes.ASM5);
         this.fieldName = name;
-        this.discoverer = discoverer;
+        this.annotations = annotations;
     }
     
     @Override
     public AnnotationVisitor visitAnnotation(String annotationName, boolean runtimeVisible)
     {
-        discoverer.startFieldAnnotation(fieldName, annotationName);
+        ModAnnotation ann = new ModAnnotation(ElementType.FIELD, Type.getType(annotationName), fieldName);
-        return new ModAnnotationVisitor(discoverer);
+        annotations.addFirst(ann);
+        return new ModAnnotationVisitor(annotations, ann);
     }
 }

src/main/java/net/minecraftforge/fml/loading/moddiscovery/ModFile.java

@@ -0,0 +1,132 @@
+/*
+ * Minecraft Forge
+ * Copyright (c) 2018.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation version 2.1
+ * of the License.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+package net.minecraftforge.fml.loading.moddiscovery;
+
+import java.nio.file.Path;
+import java.util.List;
+import java.util.Objects;
+import java.util.concurrent.CompletableFuture;
+import java.util.concurrent.ExecutionException;
+import java.util.function.Consumer;
+import java.util.jar.Attributes;
+import java.util.jar.Manifest;
+
+import static net.minecraftforge.fml.Logging.fmlLog;
+
+public class ModFile
+{
+    private static final Manifest DEFAULTMANIFEST;
+    static {
+        DEFAULTMANIFEST = new Manifest();
+        DEFAULTMANIFEST.getMainAttributes().putValue("FMLModType", "MOD");
+    }
+
+    public enum Type {
+        MOD, LIBRARY, LANGPROVIDER
+    }
+    private final Path filePath;
+    private final Type modFileType;
+    private final Manifest manifest;
+    private List<ModInfo> modInfos;
+    private final IModLocator locator;
+    private ScanResult fileScanResult;
+    private CompletableFuture<ScanResult> futureScanResult;
+    private List<CoreModFile> coreMods;
+
+    private static final Attributes.Name TYPE = new Attributes.Name("FMLModType");
+
+    public ModFile(final Path file, final IModLocator locator) {
+        this.locator = locator;
+        this.filePath = file;
+        manifest = locator.findManifest(file).orElse(DEFAULTMANIFEST);
+        if (manifest != DEFAULTMANIFEST) fmlLog.debug("Mod file {} has a manifest", file);
+        else fmlLog.debug("Mod file {} is missing a manifest", file);
+        modFileType = Type.valueOf(manifest.getMainAttributes().getValue(TYPE));
+    }
+
+    public Type getType() {
+        return modFileType;
+    }
+
+    public Path getFilePath() {
+        return filePath;
+    }
+
+    public List<ModInfo> getModInfos() {
+        return modInfos;
+    }
+
+    public void identifyMods() {
+        this.modInfos = ModFileParser.readModList(this);
+        this.modInfos.forEach(mi-> fmlLog.debug("Found mod {} for language {}", mi.getModId(), mi.getModLoader()));
+        this.coreMods = ModFileParser.getCoreMods(this);
+        this.coreMods.forEach(mi-> fmlLog.debug("Found coremod {}", mi.getPath()));
+    }
+
+
+    public List<CoreModFile> getCoreMods() {
+        return coreMods;
+    }
+
+    /**
+     * Run in an executor thread to harvest the class and annotation list
+     */
+    public ScanResult compileContent() {
+        return new Scanner(this).scan();
+    }
+
+    public void scanFile(Consumer<Path> pathConsumer) {
+        locator.scanFile(this, pathConsumer);
+    }
+
+    public void setFutureScanResult(CompletableFuture<ScanResult> future)
+    {
+        this.futureScanResult = future;
+    }
+
+    public ScanResult getScanResult() {
+        if (this.futureScanResult != null) {
+            try {
+                this.futureScanResult.get();
+            } catch (InterruptedException | ExecutionException e) {
+                e.printStackTrace();
+            }
+        }
+        return this.fileScanResult;
+    }
+
+    public void setScanResult(final ScanResult scanResult, final Throwable throwable) {
+        this.futureScanResult = null;
+        this.fileScanResult = scanResult;
+    }
+
+    @Override
+    public String toString() {
+        return "Mod File: " + Objects.toString(this.filePath);
+    }
+
+    public String getFileName() {
+        return getFilePath().getFileName().toString();
+    }
+
+    public IModLocator getLocator() {
+        return locator;
+    }
+}

src/main/java/net/minecraftforge/fml/loading/moddiscovery/ModFileParser.java

@@ -0,0 +1,71 @@
+/*
+ * Minecraft Forge
+ * Copyright (c) 2018.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation version 2.1
+ * of the License.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+package net.minecraftforge.fml.loading.moddiscovery;
+
+import com.google.gson.Gson;
+import com.google.gson.GsonBuilder;
+import com.google.gson.InstanceCreator;
+import com.google.gson.JsonDeserializer;
+import com.google.gson.reflect.TypeToken;
+import net.minecraftforge.fml.common.versioning.ArtifactVersion;
+import net.minecraftforge.fml.common.versioning.DefaultArtifactVersion;
+
+import java.util.Map;
+
+import static net.minecraftforge.fml.Logging.fmlLog;
+
+public class ModFileParser {
+    protected static java.util.List<net.minecraftforge.fml.loading.moddiscovery.ModInfo> readModList(final ModFile modFile) {
+        fmlLog.debug("Parsing mod file candidate {}", modFile.getFilePath());
+        try {
+            final java.nio.file.Path modsjson = modFile.getLocator().findPath(modFile, "META-INF", "mods.json");
+            GsonBuilder gsonBuilder = new GsonBuilder();
+            gsonBuilder.registerTypeAdapter(ModInfo.class, (InstanceCreator<ModInfo>)ic -> new ModInfo(modFile, null, null, null, null, null, null, null));
+            gsonBuilder.registerTypeAdapter(ArtifactVersion.class, (JsonDeserializer<ArtifactVersion>) (element, type, context) -> new DefaultArtifactVersion(element.getAsString()));
+            Gson gson = gsonBuilder.create();
+            final ModInfo[] modInfos = gson.fromJson(java.nio.file.Files.newBufferedReader(modsjson), ModInfo[].class);
+            return java.util.stream.Stream.of(modInfos).collect(java.util.stream.Collectors.toList());
+        } catch (java.io.IOException e) {
+            fmlLog.debug("Ignoring invalid JAR file {}", modFile.getFilePath());
+            return java.util.Collections.emptyList();
+        }
+    }
+
+    protected static java.util.List<CoreModFile> getCoreMods(final ModFile modFile) {
+        java.util.Map<String,String> coreModPaths;
+        try {
+            final java.nio.file.Path coremodsjson = modFile.getLocator().findPath(modFile, "META-INF", "coremods.json");
+            if (!java.nio.file.Files.exists(coremodsjson)) {
+                return java.util.Collections.emptyList();
+            }
+            final java.lang.reflect.Type type = new TypeToken<Map<String, String>>() {}.getType();
+            final Gson gson = new Gson();
+            coreModPaths = gson.fromJson(java.nio.file.Files.newBufferedReader(coremodsjson), type);
+        } catch (java.io.IOException e) {
+            fmlLog.debug("Failed to read coremod list coremods.json", e);
+            return java.util.Collections.emptyList();
+        }
+
+        return coreModPaths.entrySet().stream().
+                peek(e-> fmlLog.debug("Found coremod {} with Javascript path {}", e.getKey(), e.getValue())).
+                map(e -> new CoreModFile(e.getKey(), modFile.getLocator().findPath(modFile, e.getValue()),modFile)).
+                collect(java.util.stream.Collectors.toList());
+    }
+}

src/main/java/net/minecraftforge/fml/loading/moddiscovery/ModInfo.java

@@ -0,0 +1,84 @@
+/*
+ * Minecraft Forge
+ * Copyright (c) 2018.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation version 2.1
+ * of the License.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+package net.minecraftforge.fml.loading.moddiscovery;
+
+import net.minecraftforge.fml.common.versioning.ArtifactVersion;
+
+public class ModInfo {
+    private final ModFile owningFile;
+    private final String modId;
+    private final ArtifactVersion version;
+    private final String displayName;
+    private final String description;
+    private final java.net.URL updateJSONURL;
+    private final String modLoader;
+    private final java.util.List<net.minecraftforge.fml.loading.moddiscovery.ModInfo.ModVersion> dependencies;
+
+    public ModInfo(final ModFile owningFile, final String modLoader, final String modId, final String displayName, final ArtifactVersion version, final String description, final java.net.URL updateJSONURL, final java.util.List<net.minecraftforge.fml.loading.moddiscovery.ModInfo.ModVersion> dependencies) {
+        this.owningFile = owningFile;
+        this.modLoader = modLoader;
+        this.modId = modId;
+        this.displayName = displayName;
+        this.version = version;
+        this.description = description;
+        this.updateJSONURL = updateJSONURL;
+        this.dependencies = dependencies;
+    }
+
+    public ModFile getOwningFile() {
+        return owningFile;
+    }
+
+    public String getModLoader() {
+        return modLoader;
+    }
+
+    public String getModId() {
+        return modId;
+    }
+
+    public ArtifactVersion getVersion() {
+        return version;
+    }
+
+    public enum Ordering {
+        BEFORE, AFTER, NONE;
+    }
+
+    public enum DependencySide {
+        CLIENT, SERVER, BOTH;
+    }
+
+    public static class ModVersion {
+        private final String modId;
+        private final ArtifactVersion version;
+        private final boolean mandatory;
+        private final Ordering ordering;
+        private final DependencySide side;
+
+        public ModVersion(final String modId, final ArtifactVersion version, final boolean mandatory, final Ordering ordering, final DependencySide side) {
+            this.modId = modId;
+            this.version = version;
+            this.mandatory = mandatory;
+            this.ordering = ordering;
+            this.side = side;
+        }
+    }
+}

src/main/java/net/minecraftforge/fml/loading/moddiscovery/ModMethodVisitor.java

@@ -17,31 +17,36 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  */
 
-package net.minecraftforge.fml.common.discovery.asm;
+package net.minecraftforge.fml.loading.moddiscovery;
 
 import org.objectweb.asm.AnnotationVisitor;
 import org.objectweb.asm.MethodVisitor;
 import org.objectweb.asm.Opcodes;
+import org.objectweb.asm.Type;
+
+import java.lang.annotation.ElementType;
+import java.util.LinkedList;
 
 public class ModMethodVisitor extends MethodVisitor {
 
+    private final LinkedList<ModAnnotation> annotations;
     private String methodName;
     private String methodDescriptor;
-    private ASMModParser discoverer;
 
-    public ModMethodVisitor(String name, String desc, ASMModParser discoverer)
+    public ModMethodVisitor(String name, String desc, final LinkedList<ModAnnotation> annotations)
     {
         super(Opcodes.ASM5);
         this.methodName = name;
         this.methodDescriptor = desc;
-        this.discoverer = discoverer;
+        this.annotations = annotations;
     }
 
     @Override
     public AnnotationVisitor visitAnnotation(String annotationName, boolean runtimeVisible)
     {
-        discoverer.startMethodAnnotation(methodName, methodDescriptor, annotationName);
+        ModAnnotation ann = new ModAnnotation(ElementType.METHOD, Type.getType(annotationName), methodName+methodDescriptor);
-        return new ModAnnotationVisitor(discoverer);
+        annotations.addFirst(ann);
+        return new ModAnnotationVisitor(annotations, ann);
     }
 
 }

src/main/java/net/minecraftforge/fml/loading/moddiscovery/ModsFolderLocator.java

@@ -0,0 +1,108 @@
+/*
+ * Minecraft Forge
+ * Copyright (c) 2018.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation version 2.1
+ * of the License.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+package net.minecraftforge.fml.loading.moddiscovery;
+
+import net.minecraftforge.fml.common.FMLPaths;
+
+import java.io.IOException;
+import java.nio.file.FileSystem;
+import java.nio.file.FileSystems;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.Arrays;
+import java.util.Comparator;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.function.Consumer;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+import java.util.zip.ZipError;
+
+import static cpw.mods.modlauncher.api.LamdbaExceptionUtils.uncheck;
+import static net.minecraftforge.fml.Logging.fmlLog;
+
+/**
+ * Support loading mods located in JAR files in the mods folder
+ */
+public class ModsFolderLocator implements IModLocator {
+    private static final String SUFFIX = ".jar";
+    private final Path modFolder;
+    private final Map<ModFile, FileSystem> modJars;
+    public ModsFolderLocator() {
+        this(FMLPaths.MODSDIR.get());
+    }
+
+    ModsFolderLocator(Path modFolder) {
+        this.modFolder = modFolder;
+        this.modJars = new HashMap<>();
+    }
+
+    @Override
+    public List<ModFile> scanMods() {
+        return uncheck(()-> Files.list(this.modFolder)).
+                sorted(Comparator.comparing(path-> StringUtils.toLowerCase(path.getFileName().toString()))).
+                filter(p->StringUtils.toLowerCase(p.getFileName().toString()).endsWith(SUFFIX)).
+                map(p->new ModFile(p, this)).
+                peek(f->modJars.compute(f, (mf, fs)->createFileSystem(mf))).
+                collect(Collectors.toList());
+    }
+
+    @Override
+    public String name() {
+        return "mods folder";
+    }
+
+    private FileSystem createFileSystem(ModFile modFile) {
+        try {
+            return FileSystems.newFileSystem(modFile.getFilePath(), modFile.getClass().getClassLoader());
+        } catch (ZipError | IOException e) {
+            fmlLog.debug("Ignoring invalid JAR file {}", modFile.getFilePath());
+            return null;
+        }
+    }
+
+    @Override
+    public Path findPath(final ModFile modFile, final String... path) {
+        if (path.length < 1) {
+            throw new IllegalArgumentException("Missing path");
+        }
+        return modJars.get(modFile).getPath(path[0], Arrays.copyOfRange(path, 1, path.length));
+    }
+
+    @Override
+    public void scanFile(final ModFile file, final Consumer<Path> pathConsumer) {
+        fmlLog.debug("Scan started: {}", file);
+        FileSystem fs = modJars.get(file);
+        fs.getRootDirectories().forEach(path -> {
+            try (Stream<Path> files = Files.find(path, Integer.MAX_VALUE, (p, a) -> p.getNameCount() > 0 && p.getFileName().toString().endsWith(".class"))) {
+                files.forEach(pathConsumer);
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+        });
+        fmlLog.debug("Scan finished: {}", file);
+    }
+
+    @Override
+    public String toString() {
+        return "{FolderJar locator at "+this.modFolder+"}";
+    }
+}

src/main/java/net/minecraftforge/fml/loading/moddiscovery/ScanResult.java

@@ -0,0 +1,95 @@
+/*
+ * Minecraft Forge
+ * Copyright (c) 2018.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation version 2.1
+ * of the License.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+package net.minecraftforge.fml.loading.moddiscovery;
+
+
+import org.objectweb.asm.Type;
+
+import java.util.Map;
+import java.util.Set;
+
+public class ScanResult {
+    private final ModFile file;
+    private final java.util.List<net.minecraftforge.fml.loading.moddiscovery.ScanResult.AnnotationData> annotations = new java.util.ArrayList<>();
+    private final java.util.List<net.minecraftforge.fml.loading.moddiscovery.ScanResult.ClassData> classes = new java.util.ArrayList<>();
+
+    public ScanResult(final ModFile file) {
+        this.file = file;
+    }
+
+    public static boolean interestingAnnotations(final ModAnnotation annotation) {
+        return true;
+    }
+
+    public java.util.List<net.minecraftforge.fml.loading.moddiscovery.ScanResult.ClassData> getClasses() {
+        return classes;
+    }
+
+    public java.util.List<net.minecraftforge.fml.loading.moddiscovery.ScanResult.AnnotationData> getAnnotations() {
+        return annotations;
+    }
+
+    public static class ClassData {
+        private final Type clazz;
+        private final Type parent;
+        private final Set<Type> interfaces;
+
+        public ClassData(final Type clazz, final Type parent, final Set<Type> interfaces) {
+            this.clazz = clazz;
+            this.parent = parent;
+            this.interfaces = interfaces;
+        }
+
+    }
+    public static class AnnotationData {
+        private final Type annotationType;
+        private final Type clazz;
+        private final String memberName;
+        private final Map<String,Object> annotationData;
+
+
+        public AnnotationData(final Type annotationType, final Type clazz, final String memberName, final Map<String, Object> annotationData) {
+            this.annotationType = annotationType;
+            this.clazz = clazz;
+            this.memberName = memberName;
+            this.annotationData = annotationData;
+        }
+
+        public Type getAnnotationType() {
+            return annotationType;
+        }
+
+        public Type getClassType() {
+            return clazz;
+        }
+
+        public String getMemberName() {
+            return memberName;
+        }
+
+        public Map<String, Object> getAnnotationData() {
+            return annotationData;
+        }
+        public static ScanResult.AnnotationData fromModAnnotation(final Type clazz, final ModAnnotation annotation) {
+            return new AnnotationData(annotation.asmType, clazz, annotation.member, annotation.values);
+        }
+
+    }
+}

src/main/java/net/minecraftforge/fml/loading/moddiscovery/Scanner.java

@@ -0,0 +1,50 @@
+/*
+ * Minecraft Forge
+ * Copyright (c) 2018.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation version 2.1
+ * of the License.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+package net.minecraftforge.fml.loading.moddiscovery;
+
+import org.objectweb.asm.ClassReader;
+
+import static net.minecraftforge.fml.Logging.fmlLog;
+
+public class Scanner {
+    private final ModFile fileToScan;
+
+    public Scanner(final ModFile fileToScan) {
+        this.fileToScan = fileToScan;
+    }
+
+    public ScanResult scan() {
+        ScanResult result = new ScanResult(fileToScan);
+        fileToScan.scanFile(p -> fileVisitor(p, result));
+        return result;
+    }
+
+    private void fileVisitor(final java.nio.file.Path path, final ScanResult result) {
+        try {
+            fmlLog.debug("Scanning {} path {}", fileToScan, path);
+            ModClassVisitor mcv = new ModClassVisitor();
+            org.objectweb.asm.ClassReader cr = new ClassReader(java.nio.file.Files.newInputStream(path));
+            cr.accept(mcv, 0);
+            mcv.buildData(result.getClasses(), result.getAnnotations());
+        } catch (java.io.IOException e) {
+            // mark path bad
+        }
+    }
+}

src/main/resources/META-INF/services/cpw.mods.modlauncher.api.ILaunchHandlerService

@@ -0,0 +1 @@
+net.minecraftforge.fml.loading.FMLLaunchProvider

src/main/resources/META-INF/services/cpw.mods.modlauncher.api.ITransformationService

@@ -0,0 +1 @@
+net.minecraftforge.fml.loading.FMLServiceProvider

src/main/resources/log4j2.xml

@@ -1,52 +1,59 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<Configuration status="warn" packages="net.minecraftforge.server.terminalconsole.util">
+<Configuration status="WARN" packages="com.mojang.util">
     <Appenders>
+        <Console name="FmlSysOut" target="SYSTEM_OUT">
+            <PatternLayout pattern="[%d{HH:mm:ss}] [%t/%level] [%logger]: %msg%n" />
+        </Console>
         <Console name="SysOut" target="SYSTEM_OUT">
-            <PatternLayout>
+            <PatternLayout pattern="[%d{HH:mm:ss}] [%t/%level]: %msg%n" />
-                <LoggerNamePatternSelector defaultPattern="[%d{HH:mm:ss}] [%t/%level] [%logger]: %msg%n">
-                    <!-- don't include the full logger name for Mojang's logs since they use full class names and it's very verbose -->
-                    <PatternMatch key="net.minecraft." pattern="[%d{HH:mm:ss}] [%t/%level] [minecraft/%logger{1}]: %msg%n"/>
-                    <PatternMatch key="com.mojang." pattern="[%d{HH:mm:ss}] [%t/%level] [mojang/%logger{1}]: %msg%n"/>
-                </LoggerNamePatternSelector>
-            </PatternLayout>
         </Console>
         <Queue name="ServerGuiConsole" ignoreExceptions="true">
-            <PatternLayout>
+            <PatternLayout pattern="[%d{HH:mm:ss}] [%t/%level] [%logger]: %msg%n" />
-                <LoggerNamePatternSelector defaultPattern="[%d{HH:mm:ss}] [%t/%level] [%logger]: %msg%n">
-                    <!-- don't include the full logger name for Mojang's logs since they use full class names and it's very verbose -->
-                    <PatternMatch key="net.minecraft." pattern="[%d{HH:mm:ss}] [%t/%level] [minecraft/%logger{1}]: %msg%n"/>
-                    <PatternMatch key="com.mojang." pattern="[%d{HH:mm:ss}] [%t/%level] [mojang/%logger{1}]: %msg%n"/>
-                </LoggerNamePatternSelector>
-            </PatternLayout>
         </Queue>
         <RollingRandomAccessFile name="File" fileName="logs/latest.log" filePattern="logs/%d{yyyy-MM-dd}-%i.log.gz">
-            <PatternLayout pattern="[%d{HH:mm:ss}] [%t/%level] [%logger]: %msg%n"/>
+            <PatternLayout pattern="[%d{HH:mm:ss}] [%t/%level]: %msg%n" />
             <Policies>
-                <TimeBasedTriggeringPolicy/>
+                <TimeBasedTriggeringPolicy />
-                <OnStartupTriggeringPolicy/>
+                <OnStartupTriggeringPolicy />
             </Policies>
         </RollingRandomAccessFile>
-        <RollingRandomAccessFile name="DebugFile" fileName="logs/debug.log" filePattern="logs/debug-%i.log.gz">
+        <Routing name="FmlFile">
-            <PatternLayout pattern="[%d{HH:mm:ss}] [%t/%level] [%logger]: %msg%n"/>
+            <Routes pattern="$${ctx:side}">
-            <Policies>
+                <Route>
-                <OnStartupTriggeringPolicy/>
+                    <RollingRandomAccessFile name="FmlFile" fileName="logs/fml-${ctx:side}-latest.log" filePattern="logs/fml-${ctx:side}-%i.log">
-                <SizeBasedTriggeringPolicy size="200MB"/>
+                        <PatternLayout pattern="[%d{HH:mm:ss}] [%t/%level] [%logger/%X{mod}]: %msg%n" />
-            </Policies>
+                        <DefaultRolloverStrategy max="3" fileIndex="max" />
-            <DefaultRolloverStrategy max="5" fileIndex="min"/>
+                        <Policies>
-        </RollingRandomAccessFile>
+                            <OnStartupTriggeringPolicy />
+                        </Policies>
+                    </RollingRandomAccessFile>
+                </Route>
+                <Route key="$${ctx:side}">
+                    <RandomAccessFile name="FmlFile" fileName="logs/fml-junk-earlystartup.log" >
+                        <PatternLayout pattern="[%d{HH:mm:ss}] [%t/%level] [%logger]: %msg%n" />
+                    </RandomAccessFile>
+                </Route>
+            </Routes>
+        </Routing>
     </Appenders>
     <Loggers>
-        <!-- make sure mojang's logging is set to 'info' so that their LOGGER.isDebugEnabled() behavior isn't active -->
+        <Logger level="info" name="com.mojang" additivity="false">
-        <Logger level="${sys:forge.logging.mojang.level:-info}" name="com.mojang"/>
+            <AppenderRef ref="SysOut" level="INFO" />
-        <Logger level="${sys:forge.logging.mojang.level:-info}" name="net.minecraft"/>
+            <AppenderRef ref="File" />
-        <Root level="all">
+            <AppenderRef ref="ServerGuiConsole" level="INFO" />
+        </Logger>
+        <Logger level="info" name="net.minecraft" additivity="false">
             <filters>
-                <MarkerFilter marker="NETWORK_PACKETS" onMatch="DENY" onMismatch="NEUTRAL"/>
+                <MarkerFilter marker="NETWORK_PACKETS" onMatch="DENY" onMismatch="NEUTRAL" />
             </filters>
-            <AppenderRef ref="SysOut" level="${sys:forge.logging.console.level:-info}"/>
+            <AppenderRef ref="SysOut" level="INFO" />
-            <AppenderRef ref="ServerGuiConsole" level="${sys:forge.logging.console.level:-info}"/>
+            <AppenderRef ref="File" />
-            <AppenderRef ref="File" level="${sys:forge.logging.file.level:-info}"/>
+            <AppenderRef ref="ServerGuiConsole" level="INFO" />
-            <AppenderRef ref="DebugFile" level="${sys:forge.logging.debugFile.level:-trace}"/>
+        </Logger>
+        <Root level="INFO">
+            <AppenderRef ref="FmlSysOut"/>
+            <AppenderRef ref="ServerGuiConsole" level="INFO" />
+            <AppenderRef ref="FmlFile"/>
         </Root>
     </Loggers>
 </Configuration>