Program: 85869
Project: 85869
Buggy source:
/** 
 * A human readable version of the transaction useful for debugging. The format is not guaranteed to be stable.
 * @param chain If provided, will be used to estimate lock times (if set). Can be null.
 */
public String toString(AbstractBlockChain chain){
  StringBuffer s=new StringBuffer();
  s.append(String.format("String_Node_Str",getHashAsString(),getConfidence()));
  if (lockTime > 0) {
    String time;
    if (lockTime < LOCKTIME_THRESHOLD) {
      time="String_Node_Str" + lockTime;
      if (chain != null) {
        time=time + "String_Node_Str" + chain.estimateBlockTime((int)lockTime).toString()+ "String_Node_Str";
      }
    }
 else {
      time=new Date(lockTime).toString();
    }
    s.append(String.format("String_Node_Str",time));
  }
  if (inputs.size() == 0) {
    s.append(String.format("String_Node_Str"));
    return s.toString();
  }
  if (isCoinBase()) {
    String script;
    String script2;
    try {
      script=inputs.get(0).getScriptSig().toString();
      script2=outputs.get(0).getScriptPubKey().toString();
    }
 catch (    ScriptException e) {
      script="String_Node_Str";
      script2="String_Node_Str";
    }
    return "String_Node_Str" + script + "String_Node_Str"+ script2+ "String_Node_Str";
  }
  for (  TransactionInput in : inputs) {
    s.append("String_Node_Str");
    s.append("String_Node_Str");
    try {
      Script scriptSig=in.getScriptSig();
      if (scriptSig.chunks.size() == 2)       s.append(scriptSig.getFromAddress().toString());
 else       if (scriptSig.chunks.size() == 1)       s.append("String_Node_Str" + bytesToHexString(scriptSig.getPubKey()) + "String_Node_Str");
 else       s.append("String_Node_Str");
      s.append("String_Node_Str");
      s.append(in.getOutpoint().toString());
    }
 catch (    Exception e) {
      s.append("String_Node_Str").append(e.getMessage()).append("String_Node_Str");
    }
    s.append(String.format("String_Node_Str"));
  }
  for (  TransactionOutput out : outputs) {
    s.append("String_Node_Str");
    s.append("String_Node_Str");
    try {
      Script scriptPubKey=out.getScriptPubKey();
      if (scriptPubKey.isSentToAddress()) {
        s.append(scriptPubKey.getToAddress().toString());
      }
 else       if (scriptPubKey.isSentToRawPubKey()) {
        s.append("String_Node_Str");
        s.append(bytesToHexString(scriptPubKey.getPubKey()));
        s.append("String_Node_Str");
      }
      s.append("String_Node_Str");
      s.append(bitcoinValueToFriendlyString(out.getValue()));
      s.append("String_Node_Str");
      if (!out.isAvailableForSpending()) {
        s.append("String_Node_Str");
      }
      if (out.getSpentBy() != null) {
        s.append("String_Node_Str");
        s.append(out.getSpentBy().getParentTransaction().getHashAsString());
      }
    }
 catch (    Exception e) {
      s.append("String_Node_Str").append(e.getMessage()).append("String_Node_Str");
    }
    s.append(String.format("String_Node_Str"));
  }
  return s.toString();
}

Fixed version (ground truth):
/** 
 * A human readable version of the transaction useful for debugging. The format is not guaranteed to be stable.
 * @param chain If provided, will be used to estimate lock times (if set). Can be null.
 */
public String toString(AbstractBlockChain chain){
  StringBuffer s=new StringBuffer();
  s.append(String.format("String_Node_Str",getHashAsString(),getConfidence()));
  if (lockTime > 0) {
    String time;
    if (lockTime < LOCKTIME_THRESHOLD) {
      time="String_Node_Str" + lockTime;
      if (chain != null) {
        time=time + "String_Node_Str" + chain.estimateBlockTime((int)lockTime).toString()+ "String_Node_Str";
      }
    }
 else {
      time=new Date(lockTime).toString();
    }
    s.append(String.format("String_Node_Str",time));
  }
  if (inputs.size() == 0) {
    s.append(String.format("String_Node_Str"));
    return s.toString();
  }
  if (isCoinBase()) {
    String script;
    String script2;
    try {
      script=inputs.get(0).getScriptSig().toString();
      script2=outputs.get(0).getScriptPubKey().toString();
    }
 catch (    ScriptException e) {
      script="String_Node_Str";
      script2="String_Node_Str";
    }
    return "String_Node_Str" + script + "String_Node_Str"+ script2+ "String_Node_Str";
  }
  for (  TransactionInput in : inputs) {
    s.append("String_Node_Str");
    s.append("String_Node_Str");
    try {
      Script scriptSig=in.getScriptSig();
      if (scriptSig.chunks.size() == 2)       s.append(scriptSig.getFromAddress().toString());
 else       if (scriptSig.chunks.size() == 1)       s.append("String_Node_Str" + bytesToHexString(scriptSig.chunks.get(0).data) + "String_Node_Str");
 else       s.append("String_Node_Str");
      s.append("String_Node_Str");
      s.append(in.getOutpoint().toString());
    }
 catch (    Exception e) {
      s.append("String_Node_Str").append(e.getMessage()).append("String_Node_Str");
    }
    s.append(String.format("String_Node_Str"));
  }
  for (  TransactionOutput out : outputs) {
    s.append("String_Node_Str");
    s.append("String_Node_Str");
    try {
      Script scriptPubKey=out.getScriptPubKey();
      if (scriptPubKey.isSentToAddress()) {
        s.append(scriptPubKey.getToAddress().toString());
      }
 else       if (scriptPubKey.isSentToRawPubKey()) {
        s.append("String_Node_Str");
        s.append(bytesToHexString(scriptPubKey.getPubKey()));
        s.append("String_Node_Str");
      }
      s.append("String_Node_Str");
      s.append(bitcoinValueToFriendlyString(out.getValue()));
      s.append("String_Node_Str");
      if (!out.isAvailableForSpending()) {
        s.append("String_Node_Str");
      }
      if (out.getSpentBy() != null) {
        s.append("String_Node_Str");
        s.append(out.getSpentBy().getParentTransaction().getHashAsString());
      }
    }
 catch (    Exception e) {
      s.append("String_Node_Str").append(e.getMessage()).append("String_Node_Str");
    }
    s.append(String.format("String_Node_Str"));
  }
  return s.toString();
}