javassist.bytecode.InstructionPrinterm, case IINC: return opstring + " " + iter.byteAt(pos + 1); ------------------------------------------------------------------------------------------------ Key: JASSIST-227 URL: https://issues.jboss.org/browse/JASSIST-227 Project: Javassist Issue Type: Bug Affects Versions: 3.18.1-GA Environment: windows 7, redhat 6 Reporter: Cao Tang Assignee: Shigeru Chiba Priority: Critical Original Estimate: 1 hour Remaining Estimate: 1 hour javassist.bytecode.InstructionPrinterm.java case IINC: return opstring + " " + iter.byteAt(pos + 1); it didn't include a INCREMENT/DECREMENT. the correct is: return opstring + " " + iter.byteAt(pos + 1) + ", " + iter.bytecode[pos + 1] ; bytecode is protected, so a method is needed to return the value if iter.bytecode[pos + 1].