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via JDK Bug System by Dan Smith, 1 year ago
loader constraint violation: when resolving method "B.m()LFoo;" the class loader (instance of PreemptingClassLoader) of the current class, Task, and the class loader (instance of sun/misc/Launcher$AppClassLoader) for the method's defining class, B, have different Class objects for the type Foo used in the signature
java.lang.LinkageError: loader constraint violation: when resolving method "B.m()LFoo;" the class loader (instance of PreemptingClassLoader) of the current class, Task, and the class loader (instance of sun/misc/Launcher$AppClassLoader) for the method's defining class, B, have different Class objects for the type Foo used in the signature	at undefined.Task.run(Task.java:5)	at undefined.Test.main(Test.java:8)