code: @Override
      public void visitCode(Code obj) {
          stack.resetForMethodEntry(this);
          xmlItemCount = 0;
          xmlConfidentCount = 0;
          firstPC = -1;
          super.visitCode(obj);
          if ((xmlItemCount >= lowReportingThreshold) && (xmlConfidentCount > (lowReportingThreshold >> 1))) {
              bugReporter.reportBug(new BugInstance(this, "CBX_CUSTOM_BUILT_XML",
                      (xmlItemCount >= highReportingThreshold) ? HIGH_PRIORITY : (xmlItemCount >= midReportingThreshold) ? NORMAL_PRIORITY : LOW_PRIORITY)
                              .addClass(this).addMethod(this).addSourceLine(this, firstPC));
  
          }
      }
docs: overrides the visitor reset the opcode stack
  
  @param obj
  the code object of the currently parsed method