Java: "instanceof" does not work if the first parameter (object) is of type Class.

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Problem: 

instanceof does not work if the first parameter (object) is of type Class.

Solution:

Use the equivalent of "object instanceof Class", which is isAssignableFrom. For example, MyClass.class.isAssignableFrom(testClass) returns true if MyClass is a superclass or the same as the class of testClass.

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