I have a similar issue with open jdk 13 and latest version 6.2.0 Exception in thread "Thread-0" java.lang.VerifyError: Bad invokespecial instruction: current class isn't assignable to reference class. Exception Details: Location: com/Framework/bR.mouseClicked(Ljava/awt/event/MouseEvent;)V @33: invokespecial Reason: Error exists in the bytecode Bytecode: 0000000: 2bb6 000c c000 0359 4d2b b600 0bb6 0008 0000010: 3d2b b600 0a05 a000 0e1c 9b00 0a2a b400 0000020: 06b7 0007 b1 Stackmap Table: chop_frame(@36,2)...
It's the CDT version !. Version 3.2.1.201504061754 and maybe later works with CDT...