Regression: CloningClassLoader causes StackOverflowError in groovy
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Key: MNG-5042
URL: http://jira.codehaus.org/browse/MNG-5042
Project: Maven 2 & 3
Issue Type: Bug
Components: Class Loading
Affects Versions: 3.0.3, 3.0.2, 3.0.1, 3.0
Reporter: Patrick Staton
I am unable to use a groovy class as a plexus component in maven 3 because
groovy's metaclass mechanism calls Introspector.getBeanInfo() in constructors
which in turn calls classloader.loadClass(beanClass.getName() +
BEANINFO_SUFFIX) (the class name is "FooBar$__plexus2") which in turn causes
CloningClassLoader to create a new clone of the class named
"FooBar$__plexus2BeanInfo". When "FooBar$__plexusBeanInfo" is instantiated
groovy's the meta class mechanism again calls
Introspector.getBeanInfo() on "FooBar$__plexus2".
Example stack trace:
{code}at
sis.buildtools.SisMapVersionsPhase.$getStaticMetaClass(VersionsMojo.groovy)
at sis.buildtools.SisMapVersionsPhase.<init>(VersionsMojo.groovy:692)
at sis.buildtools.SisMapVersionsPhase$__plexus2BeanInfo.<init>(Unknown
Source)
at sun.reflect.GeneratedConstructorAccessor5.newInstance(Unknown Source)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
at java.lang.Class.newInstance0(Class.java:355)
at java.lang.Class.newInstance(Class.java:308)
at java.beans.Introspector.instantiate(Introspector.java:1449)
at java.beans.Introspector.findExplicitBeanInfo(Introspector.java:431)
at java.beans.Introspector.<init>(Introspector.java:380)
at java.beans.Introspector.getBeanInfo(Introspector.java:167)
at groovy.lang.MetaClassImpl$15.run(MetaClassImpl.java:2940)
at java.security.AccessController.doPrivileged(Native Method)
at groovy.lang.MetaClassImpl.addProperties(MetaClassImpl.java:2938)
at groovy.lang.MetaClassImpl.initialize(MetaClassImpl.java:2921)
at
org.codehaus.groovy.reflection.ClassInfo.getMetaClassUnderLock(ClassInfo.java:166)
at
org.codehaus.groovy.reflection.ClassInfo.getMetaClass(ClassInfo.java:182)
at
sis.buildtools.SisMapVersionsPhase.$getStaticMetaClass(VersionsMojo.groovy)
at sis.buildtools.SisMapVersionsPhase.<init>(VersionsMojo.groovy:692)
at sis.buildtools.SisMapVersionsPhase$__plexus2BeanInfo.<init>(Unknown
Source)
at sun.reflect.GeneratedConstructorAccessor5.newInstance(Unknown Source)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
at java.lang.Class.newInstance0(Class.java:355)
at java.lang.Class.newInstance(Class.java:308)
at java.beans.Introspector.instantiate(Introspector.java:1449)
at java.beans.Introspector.findExplicitBeanInfo(Introspector.java:431)
at java.beans.Introspector.<init>(Introspector.java:380)
at java.beans.Introspector.getBeanInfo(Introspector.java:167)
at groovy.lang.MetaClassImpl$15.run(MetaClassImpl.java:2940)
at java.security.AccessController.doPrivileged(Native Method)
at groovy.lang.MetaClassImpl.addProperties(MetaClassImpl.java:2938)
at groovy.lang.MetaClassImpl.initialize(MetaClassImpl.java:2921)
at
org.codehaus.groovy.reflection.ClassInfo.getMetaClassUnderLock(ClassInfo.java:166)
at
org.codehaus.groovy.reflection.ClassInfo.getMetaClass(ClassInfo.java:182)
at
sis.buildtools.SisMapVersionsPhase.$getStaticMetaClass(VersionsMojo.groovy)
at sis.buildtools.SisMapVersionsPhase.<init>(VersionsMojo.groovy:692)
at sis.buildtools.SisMapVersionsPhase$__plexus2BeanInfo.<init>(Unknown
Source)
at sun.reflect.GeneratedConstructorAccessor5.newInstance(Unknown Source)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
at java.lang.Class.newInstance0(Class.java:355)
at java.lang.Class.newInstance(Class.java:308)
at java.beans.Introspector.instantiate(Introspector.java:1449)
at java.beans.Introspector.findExplicitBeanInfo(Introspector.java:431)
at java.beans.Introspector.<init>(Introspector.java:380)
at java.beans.Introspector.getBeanInfo(Introspector.java:167)
at groovy.lang.MetaClassImpl$15.run(MetaClassImpl.java:2940)
at java.security.AccessController.doPrivileged(Native Method)
at groovy.lang.MetaClassImpl.addProperties(MetaClassImpl.java:2938)
at groovy.lang.MetaClassImpl.initialize(MetaClassImpl.java:2921)
at
org.codehaus.groovy.reflection.ClassInfo.getMetaClassUnderLock(ClassInfo.java:166)
at
org.codehaus.groovy.reflection.ClassInfo.getMetaClass(ClassInfo.java:182)
at
sis.buildtools.SisMapVersionsPhase.$getStaticMetaClass(VersionsMojo.groovy)
at sis.buildtools.SisMapVersionsPhase.<init>(VersionsMojo.groovy:692)
at sis.buildtools.SisMapVersionsPhase$__plexus2BeanInfo.<init>(Unknown
Source)
at sun.reflect.GeneratedConstructorAccessor5.newInstance(Unknown
Source){code}
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