6497639: 4/3 Profiling Swing application caused JVM crash
Summary: Make RedefineClasses() interoperate better with class sharing.
Reviewed-by: sspitsyn, jmasa
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# This is a very simple 'mailcap' file
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image/gif;; x-java-view=com.sun.activation.viewers.ImageViewer
image/jpeg;; x-java-view=com.sun.activation.viewers.ImageViewer
text/*;; x-java-view=com.sun.activation.viewers.TextViewer
text/*;; x-java-edit=com.sun.activation.viewers.TextEditor