I noticed this when trying to run EMMA on a non-Sun JVM when it couldn't load the sun.misc.SignalHandler which is used by the com.vladium.util.exit.ExitHookManager.
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The main page states EMMA is 100% pure Java but it seems to depend on the sun.* packages. See issue here (http://java.sun.com/products/jdk/faq/faq-sun-packages.html).
I noticed this when trying to run EMMA on a non-Sun JVM when it couldn't load the sun.misc.SignalHandler which is used by the com.vladium.util.exit.ExitHookManager.