code: private boolean isSyncCollectionCreation(int seen) {
          if (seen == Const.INVOKESPECIAL) {
              if (Values.CONSTRUCTOR.equals(getNameConstantOperand())) {
                  return (syncCollections.contains(getClassConstantOperand()));
              }
          } else if ((seen == Const.INVOKESTATIC) && "java/util/Collections".equals(getClassConstantOperand())) {
              String methodName = getNameConstantOperand();
              return ("synchronizedMap".equals(methodName) || "synchronizedSet".equals(methodName));
          }
          return false;
      }
docs: returns whether this instruction is creating a synchronized collection
  
  @param seen
  the opcode of the currently parsed instruction
  @return whether a synchronized collection has just been created