[GROOVY-5841] Runtime error with nested classes that have parameterized type

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.0.5
• Fix Version/s: 2.4.0-beta-4
• Component/s: Compiler
• Labels: @CompileStatic exception runtime
• Environment: Happens with the Groovy eclipse plugin and with IDEA using Groovy 2.0.5
• Assignee: Cédric Champeau
• Reporter: Oliver Plow
• Created: 07/Dec/12 03:46
• Updated: 17/Dec/14 13:25
• Resolved: 03/Sep/14 16:11

Description

Running the code below created a runtime error:

@CompileStatic
public class InnerType<T> {
     public T value = ""
}

@CompileStatic
public class MyType<T> {

     public InnerType<T> inner = new InnerType<>()

     @CompileStatic
     public static main(args)
     {
         MyType<String> type = new MyType<>()
         // type.inner.value = "123"
         // println(type.inner.value)
     }
}

Runtime error:

Groovyc: java.lang.ArrayIndexOutOfBoundsException: 0
     at 
org.codehaus.groovy.ast.GenericsType$GenericsTypeMatcher.compareGenericsWithBound(GenericsType.java:344)
     at 
org.codehaus.groovy.ast.GenericsType$GenericsTypeMatcher.checkGenerics(GenericsType.java:273)
     at 
org.codehaus.groovy.ast.GenericsType$GenericsTypeMatcher.matches(GenericsType.java:244)
     at 
org.codehaus.groovy.ast.GenericsType.isCompatibleWith(GenericsType.java:173)
     at 
org.codehaus.groovy.transform.stc.StaticTypeCheckingVisitor.typeCheckAssignment(StaticTypeCheckingVisitor.java:708)
     at 
org.codehaus.groovy.transform.stc.StaticTypeCheckingVisitor.visitField(StaticTypeCheckingVisitor.java:1065)
     at org.codehaus.groovy.ast.ClassNode.visitContents(ClassNode.java:1048)
     at 
org.codehaus.groovy.ast.ClassCodeVisitorSupport.visitClass(ClassCodeVisitorSupport.java:50)
     at 
org.codehaus.groovy.transform.stc.StaticTypeCheckingVisitor.visitClass(StaticTypeCheckingVisitor.java:222)
     at 
org.codehaus.groovy.transform.sc.StaticCompilationVisitor.visitClass(StaticCompilationVisitor.java:108)
     at 
org.codehaus.groovy.transform.sc.StaticCompileTransformation.visit(StaticCompileTransformation.java:58)
     at 
org.codehaus.groovy.transform.ASTTransformationVisitor.visitClass(ASTTransformationVisitor.java:132)
     at 
org.codehaus.groovy.transform.ASTTransformationVisitor$2.call(ASTTransformationVisitor.java:176)
     at 
org.codehaus.groovy.control.CompilationUnit.applyToPrimaryClassNodes(CompilationUnit.java:1027)
     at 
org.codehaus.groovy.control.CompilationUnit.doPhaseOperation(CompilationUnit.java:564)
     at 
org.codehaus.groovy.control.CompilationUnit.processPhaseOperations(CompilationUnit.java:542)
     at 
org.codehaus.groovy.control.CompilationUnit.compile(CompilationUnit.java:519)
     at 
org.jetbrains.groovy.compiler.rt.GroovyCompilerWrapper.compile(GroovyCompilerWrapper.java:44)
     at 
org.jetbrains.groovy.compiler.rt.GroovycRunner.main(GroovycRunner.java:129)
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
     at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
     at java.lang.reflect.Method.invoke(Method.java:601)
     at 
com.intellij.rt.execution.CommandLineWrapper.main(CommandLineWrapper.java:112)