Joern Huxhorn created GROOVY-7477:
-------------------------------------
Summary: CompileStatic-related "BUG! exception in phase
'instruction selection'"
Key: GROOVY-7477
URL: https://issues.apache.org/jira/browse/GROOVY-7477
Project: Groovy
Issue Type: Bug
Components: Compiler
Affects Versions: 2.4.3
Environment: Groovy Version: 2.4.3 JVM: 1.8.0_45 Vendor: Oracle
Corporation OS: Mac OS X
Reporter: Joern Huxhorn
Compile the file at [CompilerBug.groovy|http://pastebin.com/23gcFyjs].
{{groovyc CompilerBug.groovy}}
h3. Result
{noformat}
>>> a serious error occurred: BUG! exception in phase 'instruction selection'
>>> in source unit 'CompilerBug.groovy' unexpected NullpointerException
>>> stacktrace:
BUG! exception in phase 'instruction selection' in source unit
'CompilerBug.groovy' unexpected NullpointerException
at
org.codehaus.groovy.control.CompilationUnit.applyToPrimaryClassNodes(CompilationUnit.java:1057)
at
org.codehaus.groovy.control.CompilationUnit.doPhaseOperation(CompilationUnit.java:588)
at
org.codehaus.groovy.control.CompilationUnit.processPhaseOperations(CompilationUnit.java:566)
at
org.codehaus.groovy.control.CompilationUnit.compile(CompilationUnit.java:543)
at
org.codehaus.groovy.control.CompilationUnit.compile(CompilationUnit.java:522)
at
org.codehaus.groovy.tools.FileSystemCompiler.compile(FileSystemCompiler.java:59)
at
org.codehaus.groovy.tools.FileSystemCompiler.doCompilation(FileSystemCompiler.java:215)
at
org.codehaus.groovy.tools.FileSystemCompiler.commandLineCompile(FileSystemCompiler.java:148)
at
org.codehaus.groovy.tools.FileSystemCompiler.commandLineCompileWithErrorHandling(FileSystemCompiler.java:178)
at
org.codehaus.groovy.tools.FileSystemCompiler.main(FileSystemCompiler.java:162)
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.codehaus.groovy.tools.GroovyStarter.rootLoader(GroovyStarter.java:106)
at org.codehaus.groovy.tools.GroovyStarter.main(GroovyStarter.java:128)
Caused by: java.lang.NullPointerException
at
org.codehaus.groovy.transform.stc.StaticTypeCheckingSupport.extractGenericsConnections(StaticTypeCheckingSupport.java:1601)
at
org.codehaus.groovy.transform.stc.StaticTypeCheckingSupport.extractGenericsConnections(StaticTypeCheckingSupport.java:1642)
at
org.codehaus.groovy.transform.stc.StaticTypeCheckingSupport.extractGenericsConnections(StaticTypeCheckingSupport.java:1608)
at
org.codehaus.groovy.transform.stc.StaticTypeCheckingSupport.inferenceCheck(StaticTypeCheckingSupport.java:1408)
at
org.codehaus.groovy.transform.stc.StaticTypeCheckingSupport.typeCheckMethodsWithGenerics(StaticTypeCheckingSupport.java:1378)
at
org.codehaus.groovy.transform.stc.StaticTypeCheckingSupport.typeCheckMethodsWithGenerics(StaticTypeCheckingSupport.java:1323)
at
org.codehaus.groovy.transform.stc.StaticTypeCheckingVisitor.typeCheckMethodsWithGenericsOrFail(StaticTypeCheckingVisitor.java:4476)
at
org.codehaus.groovy.transform.stc.StaticTypeCheckingVisitor.visitMethodCallExpression(StaticTypeCheckingVisitor.java:2926)
at
org.codehaus.groovy.transform.sc.StaticCompilationVisitor.visitMethodCallExpression(StaticCompilationVisitor.java:294)
at
org.codehaus.groovy.ast.expr.MethodCallExpression.visit(MethodCallExpression.java:64)
at
org.codehaus.groovy.ast.CodeVisitorSupport.visitExpressionStatement(CodeVisitorSupport.java:69)
at
org.codehaus.groovy.ast.ClassCodeVisitorSupport.visitExpressionStatement(ClassCodeVisitorSupport.java:193)
at
org.codehaus.groovy.ast.stmt.ExpressionStatement.visit(ExpressionStatement.java:40)
at
org.codehaus.groovy.ast.CodeVisitorSupport.visitBlockStatement(CodeVisitorSupport.java:35)
at
org.codehaus.groovy.ast.ClassCodeVisitorSupport.visitBlockStatement(ClassCodeVisitorSupport.java:163)
at
org.codehaus.groovy.ast.stmt.BlockStatement.visit(BlockStatement.java:69)
at
org.codehaus.groovy.ast.ClassCodeVisitorSupport.visitClassCodeContainer(ClassCodeVisitorSupport.java:101)
at
org.codehaus.groovy.ast.ClassCodeVisitorSupport.visitConstructorOrMethod(ClassCodeVisitorSupport.java:112)
at
org.codehaus.groovy.transform.stc.StaticTypeCheckingVisitor.visitConstructorOrMethod(StaticTypeCheckingVisitor.java:1770)
at
org.codehaus.groovy.ast.ClassCodeVisitorSupport.visitMethod(ClassCodeVisitorSupport.java:123)
at
org.codehaus.groovy.transform.stc.StaticTypeCheckingVisitor.startMethodInference(StaticTypeCheckingVisitor.java:2103)
at
org.codehaus.groovy.transform.stc.StaticTypeCheckingVisitor.visitMethod(StaticTypeCheckingVisitor.java:2062)
at
org.codehaus.groovy.transform.sc.StaticCompilationVisitor.visitMethod(StaticCompilationVisitor.java:160)
at org.codehaus.groovy.ast.ClassNode.visitContents(ClassNode.java:1083)
at
org.codehaus.groovy.ast.ClassCodeVisitorSupport.visitClass(ClassCodeVisitorSupport.java:50)
at
org.codehaus.groovy.transform.stc.StaticTypeCheckingVisitor.visitClass(StaticTypeCheckingVisitor.java:247)
at
org.codehaus.groovy.transform.sc.StaticCompilationVisitor.visitClass(StaticCompilationVisitor.java:119)
at
org.codehaus.groovy.transform.sc.StaticCompileTransformation.visit(StaticCompileTransformation.java:60)
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:1052)
... 15 more
{noformat}
h3. Additional info
The problem is the {{Predicate<?>}} in combination with {{@CompileStatic}} and
{{List<String>}}.
* If {{@CompileStatic}} is removed, the code compiles fine.
* If {{[]}} is used instead of {{([] as List<String>)}}, the code compiles fine.
* If {{Predicate}} is used instead of {{Predicate<?>}}, the code compiles fine.
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