Program: 49529
Project: 49529
Buggy source:
private void postJoin(){
  systemLogService.logJoin("String_Node_Str" + node.getMasterAddress() + "String_Node_Str"+ node.isMaster());
  if (!node.isActive()) {
    return;
  }
  if (tryCount.incrementAndGet() == 5) {
    node.setAsMaster();
  }
  if (!node.isMaster()) {
    boolean allConnected=false;
    int checkCount=0;
    long maxJoinMillis=node.getGroupProperties().MAX_JOIN_SECONDS.getInteger() * 1000;
    if (node.joined()) {
      systemLogService.logJoin("String_Node_Str");
      while (checkCount++ < node.groupProperties.CONNECT_ALL_WAIT_SECONDS.getInteger() && !allConnected) {
        try {
          Thread.sleep(1000);
        }
 catch (        InterruptedException ignored) {
        }
        Set<Member> members=node.getClusterImpl().getMembers();
        allConnected=true;
        for (        Member member : members) {
          MemberImpl memberImpl=(MemberImpl)member;
          if (!memberImpl.localMember() && node.connectionManager.getConnection(memberImpl.getAddress()) == null) {
            allConnected=false;
            systemLogService.logJoin("String_Node_Str" + memberImpl.getAddress());
          }
        }
      }
    }
    if (!node.joined() || !allConnected) {
      if (Clock.currentTimeMillis() - joinStartTime < maxJoinMillis) {
        logger.log(Level.WARNING,"String_Node_Str" + node.joined() + "String_Node_Str"+ allConnected+ "String_Node_Str"+ checkCount+ "String_Node_Str");
        logger.log(Level.WARNING,"String_Node_Str");
        try {
          Thread.sleep(10000);
        }
 catch (        InterruptedException e) {
          node.shutdown(false,true);
        }
        node.rejoin();
      }
 else {
        throw new RuntimeException("String_Node_Str" + (maxJoinMillis / 1000) + "String_Node_Str");
      }
      return;
    }
 else {
      node.clusterManager.finalizeJoin();
    }
  }
  node.clusterManager.enqueueAndWait(new Processable(){
    public void process(){
      if (node.baseVariables.lsMembers.size() == 1) {
        final StringBuilder sb=new StringBuilder();
        sb.append("String_Node_Str");
        sb.append(node.clusterManager);
        logger.log(Level.INFO,sb.toString());
      }
    }
  }
,5);
}

Fixed version (ground truth):
private void postJoin(){
  systemLogService.logJoin("String_Node_Str" + node.getMasterAddress() + "String_Node_Str"+ node.isMaster());
  if (!node.isActive()) {
    return;
  }
  if (tryCount.incrementAndGet() == 5) {
    logger.log(Level.WARNING,"String_Node_Str");
    node.setAsMaster();
  }
  if (!node.isMaster()) {
    boolean allConnected=false;
    int checkCount=0;
    long maxJoinMillis=node.getGroupProperties().MAX_JOIN_SECONDS.getInteger() * 1000;
    if (node.joined()) {
      systemLogService.logJoin("String_Node_Str");
      while (checkCount++ < node.groupProperties.CONNECT_ALL_WAIT_SECONDS.getInteger() && !allConnected) {
        try {
          Thread.sleep(1000);
        }
 catch (        InterruptedException ignored) {
        }
        Set<Member> members=node.getClusterImpl().getMembers();
        allConnected=true;
        for (        Member member : members) {
          MemberImpl memberImpl=(MemberImpl)member;
          if (!memberImpl.localMember() && node.connectionManager.getConnection(memberImpl.getAddress()) == null) {
            allConnected=false;
            systemLogService.logJoin("String_Node_Str" + memberImpl.getAddress());
          }
        }
      }
    }
    if (!node.joined() || !allConnected) {
      if (Clock.currentTimeMillis() - joinStartTime < maxJoinMillis) {
        logger.log(Level.WARNING,"String_Node_Str" + node.joined() + "String_Node_Str"+ allConnected+ "String_Node_Str"+ checkCount+ "String_Node_Str");
        logger.log(Level.WARNING,"String_Node_Str");
        try {
          Thread.sleep(10000);
          node.rejoin();
        }
 catch (        InterruptedException e) {
          logger.log(Level.WARNING,e.getMessage(),e);
          node.shutdown(false,true);
        }
      }
 else {
        throw new RuntimeException("String_Node_Str" + (maxJoinMillis / 1000) + "String_Node_Str");
      }
      return;
    }
 else {
      node.clusterManager.finalizeJoin();
    }
  }
  tryCount.set(0);
  node.clusterManager.enqueueAndWait(new Processable(){
    public void process(){
      if (node.baseVariables.lsMembers.size() == 1) {
        final StringBuilder sb=new StringBuilder();
        sb.append("String_Node_Str");
        sb.append(node.clusterManager);
        logger.log(Level.INFO,sb.toString());
      }
    }
  }
,5);
}