if (bytecodeSet == null) continue;
	public void visitClassContext(ClassContext classContext) {		JavaClass jclass = classContext.getJavaClass();		Method[] methodList = jclass.getMethods();		for (Method method : methodList) {			if (method.getCode() == null)				continue;			// We can ignore methods that don't contain a monitorenter			BitSet bytecodeSet = classContext.getBytecodeSet(method);			if (!bytecodeSet.get(Constants.MONITORENTER))				continue;			try {				analyzeMethod(classContext, method);			} catch (CFGBuilderException e) {				bugReporter.logError("FindJSR166LockMonitorEnter caught exception", e);			} catch (DataflowAnalysisException e) {				bugReporter.logError("FindJSR166LockMonitorEnter caught exception", e);			}		}	}