output: #fixed code
                                  boolean verifyPublicKey(){
          //verify the public-KEY-hashes  are the same
          byte[] publicKey = scriptSig.getPublicKey();
          byte[] reedmAccount = Utils.sha256hash160(Utils.sha256hash160(publicKey));
          if(Arrays.equals(reedmAccount,script.getPublicKeyDigest().getDigestBytes())){
              return true;
          }
          return false;
      }
input: #vulnerable code 
                                  boolean verifyPublicKey(){
          //verify the public-KEY-hashes  are the same
          byte[] publicKey = scriptSig.getPublicKey();
          NulsDigestData digestData = NulsDigestData.calcDigestData(publicKey,NulsDigestData.DIGEST_ALG_SHA160);
          if(Arrays.equals(digestData.getDigestBytes(),script.getPublicKeyDigest().getDigestBytes())){
              return true;
          }
          return false;
      } 
                              #location 5 
                              #vulnerability type NULL_DEREFERENCE