[ERROR] mojo-execute : compiler:compile
Diagnosis: Compilation failure
FATAL ERROR: Error executing Maven for a project
[ERROR] project-execute : l2jfree:l2j-gameserver:jar:1.0.0 (  task-segment: [assembly:assembly] )
Diagnosis: Compilation failure
FATAL ERROR: Error executing Maven for a project
org.apache.maven.BuildFailureException: Compilation failure
	at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:555)
	at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalWithLifecycle(DefaultLifecycleExecutor.java:475)
	at org.apache.maven.lifecycle.DefaultLifecycleExecutor.forkProjectLifecycle(DefaultLifecycleExecutor.java:891)
	at org.apache.maven.lifecycle.DefaultLifecycleExecutor.forkLifecycle(DefaultLifecycleExecutor.java:729)
	at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:505)
	at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeStandaloneGoal(DefaultLifecycleExecutor.java:488)
	at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultLifecycleExecutor.java:458)
	at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures(DefaultLifecycleExecutor.java:306)
	at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(DefaultLifecycleExecutor.java:273)
	at org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:140)
	at org.apache.maven.embedder.MavenEmbedder.execute(MavenEmbedder.java:441)
	at org.apache.maven.embedder.MavenEmbedder.execute(MavenEmbedder.java:382)
	at org.maven.ide.eclipse.Maven2Executor.main(Maven2Executor.java:68)
Caused by: org.apache.maven.plugin.CompilationFailureException: Compilation failure
	at org.apache.maven.plugin.AbstractCompilerMojo.execute(AbstractCompilerMojo.java:516)
	at org.apache.maven.plugin.CompilerMojo.execute(CompilerMojo.java:114)
	at org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPluginManager.java:412)
	at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:534)
	... 12 more