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Some projects, such as MethodHandles, require us to develop Java code and test cases under packages like java.dyn. Classes in packages under java cannot be loaded by the normal means of setting CLASSPATH or using the -cp flag. The JVM will throw an exception like this:

$ java -cp "$mypath" java.dyn.MethodHandleBytecodeTest
Exception in thread "main" java.lang.SecurityException: Prohibited package name: java.dyn

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