Quiet down errors related to modders not changing their update urls from the default.

mdk/src/main/resources/META-INF/mods.toml

@@ -11,7 +11,7 @@ loaderVersion="[@FORGE_SPEC_VERSION@,)" #mandatory This is typically bumped ever
 # Review your options at https://choosealicense.com/. All rights reserved is the default copyright stance, and is thus the default here.
 license="All rights reserved"
 # A URL to refer people to when problems occur with this mod
-issueTrackerURL="http://my.issue.tracker/" #optional
+#issueTrackerURL="https://change.me.to.your.issue.tracker.example.invalid/" #optional
 # A list of mods - how many allowed here is determined by the individual mod loader
 [[mods]] #mandatory
 # The modid of the mod
@@ -22,10 +22,10 @@ modId="examplemod" #mandatory
 version="${file.jarVersion}" #mandatory
  # A display name for the mod
 displayName="Example Mod" #mandatory
-# A URL to query for updates for this mod. See the JSON update specification <here>
-updateJSONURL="http://myurl.me/" #optional
+# A URL to query for updates for this mod. See the JSON update specification https://mcforge.readthedocs.io/en/latest/gettingstarted/autoupdate/
+#updateJSONURL="https://change.me.example.invalid/updates.json" #optional
 # A URL for the "homepage" for this mod, displayed in the mod UI
-displayURL="http://example.com/" #optional
+#displayURL="https://change.me.to.your.mods.homepage.example.invalid/" #optional
 # A file name (in the root of the mod JAR) containing a logo for display
 logoFile="examplemod.png" #optional
 # A text field displayed in the mod UI

src/fmllauncher/java/net/minecraftforge/fml/loading/StringUtils.java

@@ -42,12 +42,12 @@ public class StringUtils
     }
 
     public static URL toURL(final String string) {
-        try
-        {
-            return new URL(string);
-        }
-        catch (MalformedURLException e)
-        {
+        if (string == null || string.trim().isEmpty() || string.contains("myurl.me") || string.contains("example.invalid"))
+            return null;
+
+        try {
+            return new URL(string); }
+        catch (MalformedURLException e) {
             throw new RuntimeException(e);
         }
     }