Hi,

 

I have a small mod that runs a series of unit tests on another mod. In the past I was getting a warning about System.exit being used, but it run anyway - the test library I'm using probably has that call indeed. Now, recently, I cannot run the tester mod at all. I'm getting this:

 

[09:01:23] [main/ERROR] [LaunchWrapper]: A critical problem occurred registering the ASM transformer class $wrapper.net.minecraftforge.fml.common.asm.transformers.BlamingTransformer
java.lang.ClassNotFoundException: $wrapper.net.minecraftforge.fml.common.asm.transformers.BlamingTransformer
at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191) ~[launchwrapper-1.12.jar:?]
at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_77]
at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_77]
at net.minecraft.launchwrapper.LaunchClassLoader.registerTransformer(LaunchClassLoader.java:88) [launchwrapper-1.12.jar:?]
at net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper.injectIntoClassLoader(CoreModManager.java:124) [forgeSrc-1.8.9-11.15.1.1722.jar:?]
at net.minecraft.launchwrapper.Launch.launch(Launch.java:115) [launchwrapper-1.12.jar:?]
at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.12.jar:?]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_77]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_77]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_77]
at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_77]
at net.minecraftforge.gradle.GradleStartCommon.launch(GradleStartCommon.java:97) [start/:?]
at GradleStart.main(GradleStart.java:26) [start/:?]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_77]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_77]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_77]
at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_77]
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:144) [idea_rt.jar:?]
Caused by: java.lang.NullPointerException
at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:182) ~[launchwrapper-1.12.jar:?]
... 17 more
[09:01:23] [main/ERROR] [LaunchWrapper]: A critical problem occurred registering the ASM transformer class $wrapper.net.minecraftforge.fml.common.asm.transformers.SideTransformer
java.lang.ClassNotFoundException: $wrapper.net.minecraftforge.fml.common.asm.transformers.SideTransformer
at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191) ~[launchwrapper-1.12.jar:?]
at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_77]
at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_77]
at net.minecraft.launchwrapper.LaunchClassLoader.registerTransformer(LaunchClassLoader.java:88) [launchwrapper-1.12.jar:?]
at net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper.injectIntoClassLoader(CoreModManager.java:124) [forgeSrc-1.8.9-11.15.1.1722.jar:?]
at net.minecraft.launchwrapper.Launch.launch(Launch.java:115) [launchwrapper-1.12.jar:?]
at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.12.jar:?]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_77]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_77]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_77]
at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_77]
at net.minecraftforge.gradle.GradleStartCommon.launch(GradleStartCommon.java:97) [start/:?]
at GradleStart.main(GradleStart.java:26) [start/:?]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_77]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_77]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_77]
at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_77]
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:144) [idea_rt.jar:?]
Caused by: java.lang.NullPointerException
at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:182) ~[launchwrapper-1.12.jar:?]
... 17 more
[09:01:23] [main/ERROR] [LaunchWrapper]: A critical problem occurred registering the ASM transformer class $wrapper.net.minecraftforge.fml.common.asm.transformers.EventSubscriptionTransformer
java.lang.ClassNotFoundException: $wrapper.net.minecraftforge.fml.common.asm.transformers.EventSubscriptionTransformer
at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191) ~[launchwrapper-1.12.jar:?]
at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_77]
at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_77]
at net.minecraft.launchwrapper.LaunchClassLoader.registerTransformer(LaunchClassLoader.java:88) [launchwrapper-1.12.jar:?]
at net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper.injectIntoClassLoader(CoreModManager.java:124) [forgeSrc-1.8.9-11.15.1.1722.jar:?]
at net.minecraft.launchwrapper.Launch.launch(Launch.java:115) [launchwrapper-1.12.jar:?]
at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.12.jar:?]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_77]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_77]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_77]
at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_77]
at net.minecraftforge.gradle.GradleStartCommon.launch(GradleStartCommon.java:97) [start/:?]
at GradleStart.main(GradleStart.java:26) [start/:?]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_77]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_77]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_77]
at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_77]
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:144) [idea_rt.jar:?]
Caused by: java.lang.NullPointerException
at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:182) ~[launchwrapper-1.12.jar:?]
... 17 more
[09:01:23] [main/ERROR] [LaunchWrapper]: A critical problem occurred registering the ASM transformer class $wrapper.net.minecraftforge.fml.common.asm.transformers.EventSubscriberTransformer
java.lang.ClassNotFoundException: $wrapper.net.minecraftforge.fml.common.asm.transformers.EventSubscriberTransformer
at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191) ~[launchwrapper-1.12.jar:?]
at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_77]
at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_77]
at net.minecraft.launchwrapper.LaunchClassLoader.registerTransformer(LaunchClassLoader.java:88) [launchwrapper-1.12.jar:?]
at net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper.injectIntoClassLoader(CoreModManager.java:124) [forgeSrc-1.8.9-11.15.1.1722.jar:?]
at net.minecraft.launchwrapper.Launch.launch(Launch.java:115) [launchwrapper-1.12.jar:?]
at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.12.jar:?]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_77]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_77]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_77]
at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_77]
at net.minecraftforge.gradle.GradleStartCommon.launch(GradleStartCommon.java:97) [start/:?]
at GradleStart.main(GradleStart.java:26) [start/:?]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_77]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_77]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_77]
at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_77]
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:144) [idea_rt.jar:?]
Caused by: java.lang.NullPointerException
at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:182) ~[launchwrapper-1.12.jar:?]
... 17 more
[09:01:23] [main/ERROR] [FML]: The binary patch set is missing. Either you are in a development environment, or things are not going to work!
[09:01:24] [main/ERROR] [FML]: FML appears to be missing any signature data. This is not a good thing
[09:01:24] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
[09:01:24] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLDeobfTweaker
[09:01:24] [main/INFO] [sTDOUT]: [net.minecraftforge.fml.common.launcher.FMLDeobfTweaker:injectIntoClassLoader:44]: A CRITICAL PROBLEM OCCURED INITIALIZING MINECRAFT - LIKELY YOU HAVE AN INCORRECT VERSION FOR THIS FML
[09:01:24] [main/ERROR] [LaunchWrapper]: Unable to launch
java.lang.RuntimeException: java.lang.ClassNotFoundException: net.minecraftforge.fml.common.Loader
at net.minecraftforge.fml.common.launcher.FMLDeobfTweaker.injectIntoClassLoader(FMLDeobfTweaker.java:45) ~[forgeSrc-1.8.9-11.15.1.1722.jar:?]
at net.minecraft.launchwrapper.Launch.launch(Launch.java:115) [launchwrapper-1.12.jar:?]
at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.12.jar:?]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_77]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_77]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_77]
at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_77]
at net.minecraftforge.gradle.GradleStartCommon.launch(GradleStartCommon.java:97) [start/:?]
at GradleStart.main(GradleStart.java:26) [start/:?]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_77]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_77]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_77]
at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_77]
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:144) [idea_rt.jar:?]
Caused by: java.lang.ClassNotFoundException: net.minecraftforge.fml.common.Loader
at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191) ~[launchwrapper-1.12.jar:?]
at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_77]
at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_77]
at java.lang.Class.forName0(Native Method) ~[?:1.8.0_77]
at java.lang.Class.forName(Class.java:348) ~[?:1.8.0_77]
at net.minecraftforge.fml.common.launcher.FMLDeobfTweaker.injectIntoClassLoader(FMLDeobfTweaker.java:34) ~[forgeSrc-1.8.9-11.15.1.1722.jar:?]
... 13 more
Caused by: java.lang.IllegalArgumentException
at org.objectweb.asm.ClassVisitor.<init>(Unknown Source) ~[asm-4.1.jar:4.1]
at org.objectweb.asm.commons.RemappingClassAdapter.<init>(RemappingClassAdapter.java:57) ~[asm-debug-all-5.0.3.jar:5.0.3]
at org.objectweb.asm.commons.RemappingClassAdapter.<init>(RemappingClassAdapter.java:52) ~[asm-debug-all-5.0.3.jar:5.0.3]
at net.minecraftforge.fml.common.asm.transformers.deobf.FMLRemappingAdapter.<init>(FMLRemappingAdapter.java:25) ~[forgeSrc-1.8.9-11.15.1.1722.jar:?]
at net.minecraftforge.fml.common.asm.transformers.DeobfuscationTransformer.transform(DeobfuscationTransformer.java:43) ~[forgeSrc-1.8.9-11.15.1.1722.jar:?]
at net.minecraft.launchwrapper.LaunchClassLoader.runTransformers(LaunchClassLoader.java:279) ~[launchwrapper-1.12.jar:?]
at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:176) ~[launchwrapper-1.12.jar:?]
at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_77]
at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_77]
at java.lang.Class.forName0(Native Method) ~[?:1.8.0_77]
at java.lang.Class.forName(Class.java:348) ~[?:1.8.0_77]
at net.minecraftforge.fml.common.launcher.FMLDeobfTweaker.injectIntoClassLoader(FMLDeobfTweaker.java:34) ~[forgeSrc-1.8.9-11.15.1.1722.jar:?]
... 13 more
[09:01:24] [main/INFO] [sTDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: java.lang.reflect.InvocationTargetException
[09:01:24] [main/INFO] [sTDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[09:01:24] [main/INFO] [sTDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
[09:01:24] [main/INFO] [sTDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
[09:01:24] [main/INFO] [sTDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: 	at java.lang.reflect.Method.invoke(Method.java:498)
[09:01:24] [main/INFO] [sTDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: 	at net.minecraftforge.gradle.GradleStartCommon.launch(GradleStartCommon.java:97)
[09:01:24] [main/INFO] [sTDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: 	at GradleStart.main(GradleStart.java:26)
[09:01:24] [main/INFO] [sTDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[09:01:24] [main/INFO] [sTDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
[09:01:24] [main/INFO] [sTDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
[09:01:24] [main/INFO] [sTDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: 	at java.lang.reflect.Method.invoke(Method.java:498)
[09:01:24] [main/INFO] [sTDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: 	at com.intellij.rt.execution.application.AppMain.main(AppMain.java:144)
[09:01:24] [main/INFO] [sTDERR]: [java.lang.ThreadGroup:uncaughtException:1061]: Caused by: net.minecraftforge.fml.relauncher.FMLSecurityManager$ExitTrappedException
[09:01:24] [main/INFO] [sTDERR]: [java.lang.ThreadGroup:uncaughtException:1061]: 	at net.minecraftforge.fml.relauncher.FMLSecurityManager.checkPermission(FMLSecurityManager.java:30)
[09:01:24] [main/INFO] [sTDERR]: [java.lang.ThreadGroup:uncaughtException:1061]: 	at java.lang.SecurityManager.checkExit(SecurityManager.java:761)
[09:01:24] [main/INFO] [sTDERR]: [java.lang.ThreadGroup:uncaughtException:1061]: 	at java.lang.Runtime.exit(Runtime.java:107)
[09:01:24] [main/INFO] [sTDERR]: [java.lang.ThreadGroup:uncaughtException:1061]: 	at java.lang.System.exit(System.java:971)
[09:01:24] [main/INFO] [sTDERR]: [java.lang.ThreadGroup:uncaughtException:1061]: 	at net.minecraft.launchwrapper.Launch.launch(Launch.java:138)
[09:01:24] [main/INFO] [sTDERR]: [java.lang.ThreadGroup:uncaughtException:1061]: 	at net.minecraft.launchwrapper.Launch.main(Launch.java:28)
[09:01:24] [main/INFO] [sTDERR]: [java.lang.ThreadGroup:uncaughtException:1061]: 	... 11 more

 

I'm using IDEA 2016.1 and forge "1.8.9-11.15.1.1722" (I tried a more recent version from the 1.8.9 line and it also had the same issue). And if I remove the test library from the classpath, the launcher works.

 

I noticed some FML errors in there, perhaps my environment is screwed up? I already tried to cleanCache and setupDecompWorkspace, but nothing changed.

 

Any clues?

Just to be sure, I just tested with a more recent version (1.9-12.16.1.1895) and the result is the same. If I could turn this error into a warning instead it would be great

Thank you for the reply! I will investigate, perhaps it is the test library to blame as well. Do I need ASM 4, 5, or any will do, as long as it is not both?

That was the problem indeed, forcefully removing asm 4 solves the problem, thank you!