[ https://issues.apache.org/jira/browse/GROOVY-7855?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15327153#comment-15327153 ]
Paul King commented on GROOVY-7855: ----------------------------------- I haven't worked out why yet, but some debug info at the point where the exception occurs. I had trouble trying to replicate with a simple self-contained example. {code} classNode = org.grails.datastore.gorm.AbstractGormApi <java.lang.Object> bound = org.grails.datastore.gorm.AbstractGormApi <D> -> org.grails.datastore.gorm.AbstractGormApi <D> name = D classNodePlaceholders = {} redirectBoundType = null {code} > NullPointerException in GenericsTypeMatcher > ------------------------------------------- > > Key: GROOVY-7855 > URL: https://issues.apache.org/jira/browse/GROOVY-7855 > Project: Groovy > Issue Type: Bug > Affects Versions: 2.4.7 > Reporter: Graeme Rocher > > I am getting the following exception when compiling some classes: > {code} > Error:Groovyc: BUG! exception in phase 'instruction selection' in source unit > 'grails-datastore-gorm/src/main/groovy/org/grails/datastore/gorm/GormEnhancer.groovy' > unexpected NullpointerException > at > org.codehaus.groovy.control.CompilationUnit.applyToPrimaryClassNodes(CompilationUnit.java:1058) > at > org.codehaus.groovy.control.CompilationUnit.doPhaseOperation(CompilationUnit.java:591) > at > org.codehaus.groovy.control.CompilationUnit.processPhaseOperations(CompilationUnit.java:569) > at > org.codehaus.groovy.control.CompilationUnit.compile(CompilationUnit.java:546) > 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:497) > at > org.jetbrains.groovy.compiler.rt.GroovycRunner.intMain2(GroovycRunner.java:134) > 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:497) > at > org.jetbrains.jps.incremental.groovy.InProcessGroovyc.runGroovycInThisProcess(InProcessGroovyc.java:156) > at > org.jetbrains.jps.incremental.groovy.InProcessGroovyc.access$000(InProcessGroovyc.java:51) > at > org.jetbrains.jps.incremental.groovy.InProcessGroovyc$1.call(InProcessGroovyc.java:85) > at > org.jetbrains.jps.incremental.groovy.InProcessGroovyc$1.call(InProcessGroovyc.java:82) > at java.util.concurrent.FutureTask.run(FutureTask.java:266) > at > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) > at java.lang.Thread.run(Thread.java:745) > Caused by: java.lang.NullPointerException > at > org.codehaus.groovy.ast.GenericsType$GenericsTypeMatcher.compareGenericsWithBound(GenericsType.java:457) > at > org.codehaus.groovy.ast.GenericsType$GenericsTypeMatcher.matches(GenericsType.java:294) > at > org.codehaus.groovy.ast.GenericsType.isCompatibleWith(GenericsType.java:198) > at > org.codehaus.groovy.ast.GenericsType$GenericsTypeMatcher.compareGenericsWithBound(GenericsType.java:457) > at > org.codehaus.groovy.ast.GenericsType$GenericsTypeMatcher.checkGenerics(GenericsType.java:307) > at > org.codehaus.groovy.ast.GenericsType$GenericsTypeMatcher.matches(GenericsType.java:276) > at > org.codehaus.groovy.ast.GenericsType.isCompatibleWith(GenericsType.java:198) > at > org.codehaus.groovy.transform.stc.StaticTypeCheckingVisitor.checkTypeGenerics(StaticTypeCheckingVisitor.java:970) > at > org.codehaus.groovy.transform.stc.StaticTypeCheckingVisitor.checkReturnType(StaticTypeCheckingVisitor.java:1829) > at > org.codehaus.groovy.transform.stc.StaticTypeCheckingVisitor$1.returnStatementAdded(StaticTypeCheckingVisitor.java:173) > at > org.codehaus.groovy.classgen.ReturnAdder.addReturnsIfNeeded(ReturnAdder.java:120) > at > org.codehaus.groovy.classgen.ReturnAdder.addReturnsIfNeeded(ReturnAdder.java:186) > at > org.codehaus.groovy.classgen.ReturnAdder.visitMethod(ReturnAdder.java:76) > at > org.codehaus.groovy.transform.stc.StaticTypeCheckingVisitor.visitConstructorOrMethod(StaticTypeCheckingVisitor.java:1787) > at > org.codehaus.groovy.ast.ClassCodeVisitorSupport.visitMethod(ClassCodeVisitorSupport.java:126) > at > org.codehaus.groovy.transform.stc.StaticTypeCheckingVisitor.startMethodInference(StaticTypeCheckingVisitor.java:2119) > at > org.codehaus.groovy.transform.stc.StaticTypeCheckingVisitor.visitMethod(StaticTypeCheckingVisitor.java:2078) > at > org.codehaus.groovy.transform.sc.StaticCompilationVisitor.visitMethod(StaticCompilationVisitor.java:164) > at org.codehaus.groovy.ast.ClassNode.visitContents(ClassNode.java:1078) > at > org.codehaus.groovy.ast.ClassCodeVisitorSupport.visitClass(ClassCodeVisitorSupport.java:53) > at > org.codehaus.groovy.transform.stc.StaticTypeCheckingVisitor.visitClass(StaticTypeCheckingVisitor.java:249) > at > org.codehaus.groovy.transform.sc.StaticCompilationVisitor.visitClass(StaticCompilationVisitor.java:123) > at > org.codehaus.groovy.transform.sc.StaticCompileTransformation.visit(StaticCompileTransformation.java:63) > at > org.codehaus.groovy.transform.ASTTransformationVisitor.visitClass(ASTTransformationVisitor.java:134) > at > org.codehaus.groovy.transform.ASTTransformationVisitor$2.call(ASTTransformationVisitor.java:178) > at > org.codehaus.groovy.control.CompilationUnit.applyToPrimaryClassNodes(CompilationUnit.java:1053) > ... 22 more > {code} -- This message was sent by Atlassian JIRA (v6.3.4#6332)