ClassCastException net.sf.cglib.proxy.Enhancer$EnhancerKey$$KeyFactor yByCGLIB

[bmoon]

We are using:

-- org.springframework.config.java.jar (m4)
-- spring 2.5.2
-- cglib-nodep 2.1_3

Periodically, we see a java.lang.ClassCastException per below:

net.sf.cglib.proxy.Enhancer$EnhancerKey$$KeyFactor yByCGLIB$$7fb24d72 incompatible with net.sf.cglib.core.KeyFactory
at net.sf.cglib.core.KeyFactory$Generator.create(KeyF actory.java:145)
at net.sf.cglib.core.KeyFactory.create(KeyFactory.jav a:117)
at net.sf.cglib.core.KeyFactory.create(KeyFactory.jav a:108)
at net.sf.cglib.core.KeyFactory.create(KeyFactory.jav a:104)
at net.sf.cglib.proxy.Enhancer.<clinit>(Enhancer.java :69)
at java.lang.J9VMInternals.initializeImpl(Native Method)
at java.lang.J9VMInternals.initialize(J9VMInternals.j ava:196)

We bounce our server, and the error is resolved. Next install; however, will sometimes recreate error.

Any ideas?

[bmoon]

We found issue and is a result of bug in cglib when parent_last class loading is used. Opened issue with cglib: ClassCastException in KeyFactory$Generator.create