Program: 166432
Project: 166432
Buggy source:
public List<String> getTableList(final String tableNameMatching,final List<String> existingTableList){
  List<String> ret=null;
  final String errMsg="String_Node_Str" + "String_Node_Str" + "String_Node_Str";
  subj=getLoginSubject();
  if (subj != null) {
    ret=Subject.doAs(subj,new PrivilegedAction<List<String>>(){
      @Override public List<String> run(){
        List<String> tableList=new ArrayList<String>();
        HBaseAdmin admin=null;
        try {
          LOG.info("String_Node_Str");
          Configuration conf=HBaseConfiguration.create();
          LOG.info("String_Node_Str");
          setClientConfigValues(conf);
          LOG.info("String_Node_Str");
          HBaseAdmin.checkHBaseAvailable(conf);
          LOG.info("String_Node_Str");
          admin=new HBaseAdmin(conf);
          for (          HTableDescriptor htd : admin.listTables(tableNameMatching)) {
            String tableName=htd.getNameAsString();
            if (existingTableList != null && existingTableList.contains(tableName)) {
              continue;
            }
 else {
              tableList.add(htd.getNameAsString());
            }
          }
        }
 catch (        ZooKeeperConnectionException zce) {
          String msgDesc="String_Node_Str" + "String_Node_Str";
          HadoopException hdpException=new HadoopException(msgDesc,zce);
          hdpException.generateResponseDataMap(false,getMessage(zce),msgDesc + errMsg,null,null);
          LOG.error(msgDesc + zce);
          throw hdpException;
        }
catch (        MasterNotRunningException mnre) {
          String msgDesc="String_Node_Str" + "String_Node_Str" + "String_Node_Str";
          HadoopException hdpException=new HadoopException(msgDesc,mnre);
          hdpException.generateResponseDataMap(false,getMessage(mnre),msgDesc + errMsg,null,null);
          LOG.error(msgDesc + mnre);
          throw hdpException;
        }
catch (        IOException io) {
          String msgDesc="String_Node_Str" + getConfigHolder().getDatasourceName() + "String_Node_Str"+ tableNameMatching+ "String_Node_Str";
          HadoopException hdpException=new HadoopException(msgDesc,io);
          hdpException.generateResponseDataMap(false,getMessage(io),msgDesc + errMsg,null,null);
          LOG.error(msgDesc + io);
          throw hdpException;
        }
catch (        Throwable e) {
          String msgDesc="String_Node_Str" + getConfigHolder().getDatasourceName() + "String_Node_Str"+ tableNameMatching+ "String_Node_Str";
          LOG.error(msgDesc + e);
          HadoopException hdpException=new HadoopException(msgDesc,e);
          hdpException.generateResponseDataMap(false,getMessage(e),msgDesc + errMsg,null,null);
          throw hdpException;
        }
 finally {
          if (admin != null) {
            try {
              admin.close();
            }
 catch (            IOException e) {
              LOG.error("String_Node_Str" + getConfigHolder().getDatasourceName() + "String_Node_Str",e);
            }
          }
        }
        return tableList;
      }
    }
);
  }
  return ret;
}

Fixed version (ground truth):
public List<String> getTableList(final String tableNameMatching,final List<String> existingTableList){
  List<String> ret=null;
  final String errMsg="String_Node_Str" + "String_Node_Str" + "String_Node_Str";
  subj=getLoginSubject();
  if (subj != null) {
    ret=Subject.doAs(subj,new PrivilegedAction<List<String>>(){
      @Override public List<String> run(){
        List<String> tableList=new ArrayList<String>();
        HBaseAdmin admin=null;
        try {
          LOG.info("String_Node_Str");
          Configuration conf=HBaseConfiguration.create();
          LOG.info("String_Node_Str");
          setClientConfigValues(conf);
          LOG.info("String_Node_Str");
          HBaseAdmin.checkHBaseAvailable(conf);
          LOG.info("String_Node_Str");
          admin=new HBaseAdmin(conf);
          for (          HTableDescriptor htd : admin.listTables(tableNameMatching)) {
            if (htd == null) {
              LOG.error("String_Node_Str");
            }
 else {
              String tableName=htd.getNameAsString();
              if (existingTableList != null && existingTableList.contains(tableName)) {
                continue;
              }
 else {
                tableList.add(htd.getNameAsString());
              }
            }
          }
        }
 catch (        ZooKeeperConnectionException zce) {
          String msgDesc="String_Node_Str" + "String_Node_Str";
          HadoopException hdpException=new HadoopException(msgDesc,zce);
          hdpException.generateResponseDataMap(false,getMessage(zce),msgDesc + errMsg,null,null);
          LOG.error(msgDesc + zce);
          throw hdpException;
        }
catch (        MasterNotRunningException mnre) {
          String msgDesc="String_Node_Str" + "String_Node_Str" + "String_Node_Str";
          HadoopException hdpException=new HadoopException(msgDesc,mnre);
          hdpException.generateResponseDataMap(false,getMessage(mnre),msgDesc + errMsg,null,null);
          LOG.error(msgDesc + mnre);
          throw hdpException;
        }
catch (        IOException io) {
          String msgDesc="String_Node_Str" + getConfigHolder().getDatasourceName() + "String_Node_Str"+ tableNameMatching+ "String_Node_Str";
          HadoopException hdpException=new HadoopException(msgDesc,io);
          hdpException.generateResponseDataMap(false,getMessage(io),msgDesc + errMsg,null,null);
          LOG.error(msgDesc + io);
          throw hdpException;
        }
catch (        Throwable e) {
          String msgDesc="String_Node_Str" + getConfigHolder().getDatasourceName() + "String_Node_Str"+ tableNameMatching+ "String_Node_Str";
          LOG.error(msgDesc + e);
          HadoopException hdpException=new HadoopException(msgDesc,e);
          hdpException.generateResponseDataMap(false,getMessage(e),msgDesc + errMsg,null,null);
          throw hdpException;
        }
 finally {
          if (admin != null) {
            try {
              admin.close();
            }
 catch (            IOException e) {
              LOG.error("String_Node_Str" + getConfigHolder().getDatasourceName() + "String_Node_Str",e);
            }
          }
        }
        return tableList;
      }
    }
);
  }
  return ret;
}