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Java: Mocking a final static field

This is a way how to mock a final static field in Java:

static void mockFinalStaticField(Field field, Object newValue) throws Exception {
    field.setAccessible(true);

    // remove final modifier from field
    Field modifiersField = Field.class.getDeclaredField("modifiers");
    modifiersField.setAccessible(true);
    modifiersField.setInt(field, field.getModifiers() & ~Modifier.FINAL);

    field.set(null, newValue);
}

call it with:

mockFinalStaticField(yourClass.getClass().getDeclaredField("FINAL_STATIC_FIELDNAME"), yourMock);