John Flinchbaugh created GROOVY-7485:
----------------------------------------
Summary: BUG! exception in phase 'semantic analysis'... when
trying to call instance method as default for a constructor parameter
Key: GROOVY-7485
URL: https://issues.apache.org/jira/browse/GROOVY-7485
Project: Groovy
Issue Type: Bug
Components: Compiler
Affects Versions: 2.4.3
Environment: Java(TM) SE Runtime Environment (build 1.8.0_25-b17)
Java HotSpot(TM) 64-Bit Server VM (build 25.25-b02, mixed mode)
Seen in java 7 too.
Reporter: John Flinchbaugh
Priority: Minor
% groovyc StaticDefault.groovy # the code below
{code}
class StaticDefault {
def name
StaticDefault(name = getName()) {
this.name = name
}
private getName() {
'name'
}
}
{code}
And see a big the stacktrace:
{code}
>>> a serious error occurred: BUG! exception in phase 'semantic analysis' in
>>> source unit 'StaticDefault.groovy' unexpected NullpointerException
>>> stacktrace:
BUG! exception in phase 'semantic analysis' in source unit
'StaticDefault.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:483)
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.control.StaticVerifier$1.visitVariableExpression(StaticVerifier.java:84)
at
org.codehaus.groovy.ast.expr.VariableExpression.visit(VariableExpression.java:70)
at
org.codehaus.groovy.ast.CodeVisitorSupport.visitMethodCallExpression(CodeVisitorSupport.java:129)
at
org.codehaus.groovy.ast.expr.MethodCallExpression.visit(MethodCallExpression.java:64)
at
org.codehaus.groovy.control.StaticVerifier.visitConstructorOrMethod(StaticVerifier.java:79)
at
org.codehaus.groovy.ast.ClassCodeVisitorSupport.visitConstructor(ClassCodeVisitorSupport.java:119)
at org.codehaus.groovy.ast.ClassNode.visitContents(ClassNode.java:1079)
at
org.codehaus.groovy.ast.ClassCodeVisitorSupport.visitClass(ClassCodeVisitorSupport.java:50)
at
org.codehaus.groovy.control.StaticVerifier.visitClass(StaticVerifier.java:42)
at
org.codehaus.groovy.control.CompilationUnit$6.call(CompilationUnit.java:209)
at
org.codehaus.groovy.control.CompilationUnit.applyToPrimaryClassNodes(CompilationUnit.java:1052)
... 15 more
{code}
Switching the method used for the default to a static method fixes the problem,
but I'm guessing you likely wanted to give a better message out of the compiler.
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