Program: 37926
Project: 37926
Buggy source:
public static void main(String[] args){
  try {
    Kademlia kad1=new Kademlia("String_Node_Str",new NodeId("String_Node_Str"),7574);
    Kademlia kad2=new Kademlia("String_Node_Str",new NodeId("String_Node_Str"),7572);
    DHTContentImpl c1=new DHTContentImpl(kad2.getOwnerId(),"String_Node_Str");
    DHTContentImpl c2=new DHTContentImpl(kad2.getOwnerId(),"String_Node_Str");
    kad2.bootstrap(kad1.getNode());
    kad1.put(c1);
    kad1.put(c2);
    for (long i=0; i < 9999990000L; i++) {
    }
    System.out.println("String_Node_Str");
    long c2OldTs=c2.getLastUpdatedTimestamp();
    c2.setData("String_Node_Str");
    kad1.putLocally(c2);
    try {
      System.out.println("String_Node_Str");
      GetParameterFUC gp=new GetParameterFUC(c1.getKey(),DHTContentImpl.TYPE,c1.getOwnerId(),c1.getLastUpdatedTimestamp());
      List<StorageEntry> conte=kad2.getUpdated(gp,4);
      for (      StorageEntry cc : conte) {
        System.out.println("String_Node_Str" + new DHTContentImpl().fromBytes(cc.getContent().getBytes()));
        System.out.println("String_Node_Str" + cc.getContentMetadata());
      }
    }
 catch (    IOException|UpToDateContentException ex) {
      System.err.println(ex.getMessage());
    }
    try {
      System.out.println("String_Node_Str");
      GetParameterFUC gp=new GetParameterFUC(c2.getKey(),DHTContentImpl.TYPE,c2.getOwnerId(),c2OldTs);
      List<StorageEntry> conte=kad2.getUpdated(gp,4);
      for (      StorageEntry cc : conte) {
        System.out.println("String_Node_Str" + new DHTContentImpl().fromBytes(cc.getContent().getBytes()));
        System.out.println("String_Node_Str" + cc.getContentMetadata());
      }
    }
 catch (    IOException|UpToDateContentException ex) {
      System.err.println(ex.getMessage());
    }
  }
 catch (  IOException e) {
    e.printStackTrace();
  }
}

Fixed version (ground truth):
public static void main(String[] args){
  try {
    Kademlia kad1=new Kademlia("String_Node_Str",new NodeId("String_Node_Str"),7574);
    Kademlia kad2=new Kademlia("String_Node_Str",new NodeId("String_Node_Str"),7572);
    DHTContentImpl c1=new DHTContentImpl(kad2.getOwnerId(),"String_Node_Str");
    DHTContentImpl c2=new DHTContentImpl(kad2.getOwnerId(),"String_Node_Str");
    kad2.bootstrap(kad1.getNode());
    kad1.put(c1);
    kad1.put(c2);
    for (long i=0; i < 9999990000L; i++) {
    }
    System.out.println("String_Node_Str");
    long c2OldTs=c2.getLastUpdatedTimestamp();
    c2.setData("String_Node_Str");
    kad1.putLocally(c2);
    try {
      System.out.println("String_Node_Str");
      GetParameterFUC gp=new GetParameterFUC(c1.getKey(),DHTContentImpl.TYPE,c1.getOwnerId(),c1.getLastUpdatedTimestamp());
      StorageEntry conte=kad2.getUpdated(gp,4);
      System.out.println("String_Node_Str" + new DHTContentImpl().fromBytes(conte.getContent().getBytes()));
      System.out.println("String_Node_Str" + conte.getContentMetadata());
    }
 catch (    IOException|UpToDateContentException ex) {
      System.err.println(ex.getMessage());
    }
    try {
      System.out.println("String_Node_Str");
      GetParameterFUC gp=new GetParameterFUC(c2.getKey(),DHTContentImpl.TYPE,c2.getOwnerId(),c2OldTs);
      StorageEntry conte=kad2.getUpdated(gp,4);
      System.out.println("String_Node_Str" + new DHTContentImpl().fromBytes(conte.getContent().getBytes()));
      System.out.println("String_Node_Str" + conte.getContentMetadata());
    }
 catch (    IOException|UpToDateContentException ex) {
      System.err.println(ex.getMessage());
    }
  }
 catch (  IOException e) {
    e.printStackTrace();
  }
}