Error:Groovyc: While compiling tests of ABC-integration-test: BUG! exception in phase 'semantic analysis'

semanticAnalysisError.stacktrace

Error:Groovyc: While compiling tests of ABC-integration-test: BUG! exception in phase 'semantic analysis' in source unit '...\groovy\com\foo\...\.groovy' Problem loading class com.foo.....
	at org.codehaus.groovy.control.CompilationUnit.applyToSourceUnits(CompilationUnit.java:935)
	at org.codehaus.groovy.control.CompilationUnit.doPhaseOperation(CompilationUnit.java:593)
	at org.codehaus.groovy.control.CompilationUnit.compile(CompilationUnit.java:542)
	at org.jetbrains.groovy.compiler.rt.GroovyCompilerWrapper.compile(GroovyCompilerWrapper.java:62)
	at org.jetbrains.groovy.compiler.rt.DependentGroovycRunner.runGroovyc(DependentGroovycRunner.java:115)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.jetbrains.groovy.compiler.rt.GroovycRunner.intMain2(GroovycRunner.java:136)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.jetbrains.jps.incremental.groovy.InProcessGroovyc.runGroovycInThisProcess(InProcessGroovyc.java:158)
	at org.jetbrains.jps.incremental.groovy.InProcessGroovyc.lambda$runGroovyc$0(InProcessGroovyc.java:88)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.RuntimeException: Problem loading class com.foo.....
	at org.jetbrains.groovy.compiler.rt.DependentGroovycRunner$7$1.loadClass(DependentGroovycRunner.java:491)
	at org.codehaus.groovy.control.ClassNodeResolver.tryAsLoaderClassOrScript(ClassNodeResolver.java:185)
	at org.codehaus.groovy.control.ClassNodeResolver.findClassNode(ClassNodeResolver.java:170)
	at org.codehaus.groovy.control.ClassNodeResolver.resolveName(ClassNodeResolver.java:126)
	at org.codehaus.groovy.control.ResolveVisitor.resolveToOuter(ResolveVisitor.java:678)
	at org.codehaus.groovy.control.ResolveVisitor.resolve(ResolveVisitor.java:310)
	at org.codehaus.groovy.control.ResolveVisitor.visitClass(ResolveVisitor.java:1220)
	at org.codehaus.groovy.control.ResolveVisitor.startResolving(ResolveVisitor.java:178)
	at org.codehaus.groovy.control.CompilationUnit$11.call(CompilationUnit.java:651)
	at org.codehaus.groovy.control.CompilationUnit.applyToSourceUnits(CompilationUnit.java:931)
	... 19 more
Caused by: java.lang.ClassFormatError: Illegal method name "method name with a semi-colon ; foo bar " in class com/foo/.../....groovy
	at java.lang.ClassLoader.defineClass1(Native Method)
	at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
	at java.lang.ClassLoader.defineClass(ClassLoader.java:642)
	at com.intellij.util.lang.UrlClassLoader._defineClass(UrlClassLoader.java:272)
	at org.jetbrains.jps.incremental.groovy.JointCompilationClassLoader._defineClass(JointCompilationClassLoader.java:38)
	at com.intellij.util.lang.UrlClassLoader.defineClass(UrlClassLoader.java:268)
	at com.intellij.util.lang.UrlClassLoader.findClass(UrlClassLoader.java:222)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:411)
	at groovy.lang.GroovyClassLoader.loadClass(GroovyClassLoader.java:677)
	at groovy.lang.GroovyClassLoader.loadClass(GroovyClassLoader.java:545)
	at org.jetbrains.groovy.compiler.rt.DependentGroovycRunner$7$1.loadClass(DependentGroovycRunner.java:485)
	... 28 more