[GROOVY-9409] org.codehaus.groovy.runtime.callsite.GroovySunClassLoader is unusable

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.0.0
• Fix Version/s: 2.5.10, 4.0.0-alpha-1, 3.0.2
• Component/s: bytecode
• Labels: ClassFormatError
• Assignee: Paul King
• Reporter: Baltasar Trancon Widemann
• Created: 19/Feb/20 09:18
• Updated: 22/May/22 16:00
• Resolved: 21/Feb/20 02:13

Description

The singleton class loader supposedly defined by org.codehaus.groovy.runtime.callsite.GroovySunClassLoader cannot be used. The creation of the instance fails with a ClassFormatError. The attached Java code demonstrates the issue:

$ javac -classpath $HOME/.m2/repository/org/codehaus/groovy/groovy/3.0.0/groovy-3.0.0.jar Example.java 
$ java -classpath .:$HOME/.m2/repository/org/codehaus/groovy/groovy/3.0.0/groovy-3.0.0.jar Example
GroovySunClassLoader.sunVM = null
Creating a new GroovySunClassLoader ...
Exception in thread "main" java.lang.ClassFormatError: Absent Code attribute in method that is not native or abstract in class file org/codehaus/groovy/runtime/callsite/AbstractCallSite
	at java.lang.ClassLoader.defineClass1(Native Method)
	at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
	at java.lang.ClassLoader.defineClass(ClassLoader.java:642)
	at org.codehaus.groovy.reflection.SunClassLoader.define(SunClassLoader.java:95)
	at org.codehaus.groovy.runtime.callsite.GroovySunClassLoader.loadAbstract(GroovySunClassLoader.java:69)
	at org.codehaus.groovy.runtime.callsite.GroovySunClassLoader.<init>(GroovySunClassLoader.java:51)
	at Example$1.<init>(Example.java:7)
	at Example.main(Example.java:7)