Determinations Server (Java) - Creates unmanaged threads

Hi
Testing the 10.2 determinations server in an app server with a tight security manager and hit the following exceptions. It appears this class (InterviewService10_2) is spawning unmanaged threads, which is slightly suspect behaviour in JEE, particularly later versions where there are services to support job execution. Yet to find a work around for this for this locked down environment, any advice?
20:42:39,177 ERROR [1136341612@qtp-1638726193-2] ERROR com.oracle.util.plugins.PluginRegistry - Failed to instantiate a plugin from factory instance for class 'com.oracle.determinations.server.services.interview.v10_2.InterviewService10_2'. Reason:null
com.oracle.util.reflection.ReflectionWrapperException
Caused by: java.security.AccessControlException: access denied (java.lang.RuntimePermission modifyThreadGroup)
at com.oracle.determinations.server.services.interview.v10_2.InterviewService10_2.<init>(InterviewService10_2.java:98)
at com.oracle.determinations.server.services.interview.v10_2.InterviewService10_2.getInstance(InterviewService10_2.java:114)

Just a belated follow up on this, which may be related. I am using a local tomcat-6 for some work on 10.1 and i see the following in the logs on redeployment. Do you see similar things? I am guessing it may be something similar. Do you have a setup where redployments work ok or do you restart the tomcat instance for each publish?
INFO: Reloading this Context has started
01-Feb-2011 11:50:08 org.apache.catalina.loader.WebappClassLoader clearReferencesThreads
SEVERE: The web application [owd-10.1] appears to have started a thread named [Thread-15] but has failed to stop it. This is very likely to create a memory leak.
01-Feb-2011 11:50:08 org.apache.catalina.loader.WebappClassLoader clearReferencesThreads
SEVERE: The web application [owd-10.1] appears to have started a thread named [Thread-16] but has failed to stop it. This is very likely to create a memory leak.
01-Feb-2011 11:50:08 org.apache.catalina.loader.WebappClassLoader clearThreadLocalMap
SEVERE: The web application [owd-10.1] created a ThreadLocal with key of type [org.apache.commons.lang.builder.ToStringStyle$1] (value [org.apache.commons.lang.builder.ToStringStyle$1@2c006765]) and a value of type [java.util.HashSet] (value [[]]) but failed to remove it when the web application was stopped. This is very likely to create a memory leak.
Thanks
Luke

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http://msdn.microsoft.com/en-us/library/windows/desktop/aa363648(v=vs.85).aspx
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Thanks for sharing this information Paul.

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public class BlueServer {
static Vector clientList = new Vector(); // Vector/array que guardara los clientes conectados
static PrintWriter screenOut = new PrintWriter(System.out, true); // Abreviar la salida en pantalla
public static int PORT; // Puerto al que daremos servicio
* Clase principal BlueServer
public static void main(String[] args) throws IOException {
ServerSocket serverSocket = null; // Nuestro socket SERVIDOR
boolean listening = true; // Bandera del SERVIDOR para estar simpre a la escucha
Thread tempThread; // Thread/Hilo de proceso
BlueClientThread tempClient; // Hilo temporal del clietne para asignar el nombre "BlueClientThread"
int currentNode; // En caso de ser necesario para saber en que nodo se esta trabajando
Date horaDeInicio = new Date(); // La hora de ACTIVACION del servidor
screenOut.println("\n\n\n**************************************************************");
screenOut.println("BlueServer v0.01\n\n");
screenOut.println("BlueServer es un servidor de sockets para multiples clientes ");
screenOut.println("desarrollados en JAVA o FLASH.\n");
screenOut.println("Basado en el estandar XML administra los mensajes recibidos");
screenOut.println("hacia todos los clientes conectados.\n");
screenOut.println("Primera version BETA.");
screenOut.println(" Jun '08 by Ralph Moran");
screenOut.println("**************************************************************\n\n\n");
* Es necesario al menos 1 argumento que defina el nuemero de puerto.
if ( args.length >= 1 ){
PORT = new Integer(args[0]); // Numero de puerto que se reservara
* Se intenta crear el socket SERVIDOR que estara dando servicio a los clientes FLASH
* en el numero de puerto PORT.
try{
serverSocket = new ServerSocket(PORT);
}catch(IOException e){
System.err.println("No se puede escuchar el puerto: "+PORT);
System.exit(-1);
// Mensaje de activacion sin problemas
screenOut.println("Servidor BlueServer v0.01 activado en puerto "+PORT+".\n");
screenOut.println("ADMINISTRADOR");
screenOut.println("Hora de activacion: " + horaDeInicio.toString());
screenOut.println("..............................................................\n\n");
* Comienza a la escucha de cualquier cliente FLASH/JAVA que se conecte a PORT
while (listening){
tempClient = new BlueClientThread( serverSocket.accept() );
clientList.add(tempClient);
tempThread = new Thread(tempClient);
tempThread.start();
* Cerramos la conexion del SERVIDOR
serverSocket.close();
}else{
* En caso de NO traer los argumentos necesarios (PUERTO, etc)
screenOut.println(" ..............................................................\n\n");
screenOut.println("\n\n\n ERROR: Numero incorrecto de argumentos/parametros.\n");
screenOut.println(" EJECUCION\n java BlueServer <puerto>\n");
screenOut.println(" Donde <puerto> es un puerto no reservado y debe ser mayor a 1024 para que el");
screenOut.println(" servidor comience a escuchar.\n\n\n");
screenOut.println(" ..............................................................\n\n");
System.exit(-1);
* Metodo que envia el mensaje recibido del cliente a TODOS los clientes conectados.
* Usa el metodo send( String msg ) de la clase Thread BlueClientThread
static void sendToAllClients(String message){
int i;
BlueClientThread foo;
//BlueClientThread fooip;
BlueClientThread tempClient;
for ( i=0; i<clientList.size(); ++i ){
foo = (BlueClientThread)clientList.get(i);
foo.send(message);
* Metodo que borra de nuestro Vector clientList todo rastro del CLIENTE (IP, HostName, etc)
static void deleteClient(BlueClientThread deadClient){
int num;
Date horaConexion = new Date();
screenOut.println("ClienteIP -> "+ deadClient.clientIP + ", Desconexion -> " + horaConexion.toString());
num = clientList.indexOf(deadClient);
clientList.remove(num);
* Clase BlueClientThread que deriba/hereda de la clase Padre Thread.
* Generamos nuestra propa clase con metodos personalizados aprovechando metodos heredados.
* METODOS PERSONALIZADOS
* BlueClientThread.send(String msg);
* Envia un mensaje a un cliente especifico.
* Cada Hilo de Cliente se encarga de enviar el mensaje recibido a TODOS LOS DEMAS CLIENTES
class BlueClientThread extends Thread {
PrintWriter screenOut = new PrintWriter(System.out, true);
private Socket socket = null;
public String clientIP;
public PrintWriter out;
public BufferedReader in;
* Todos los Threads se llamaran BlueClientThread
public BlueClientThread(Socket socket){
super("BlueClientThread");
this.socket = socket;
* Ejecucion del Thread
public void run(){
clientIP = socket.getInetAddress().getHostAddress(); // Tomamos la IP del cliente
Date horaConexion = new Date(); // Determinamos el instante de conexion
// Indicamos que IP se conecto y el instante en que fue
screenOut.println("ClienteIP -> "+ clientIP + ", Conexion -> " + horaConexion.toString());
// Al conectarse el cliente mandar aviso a todos los CONECTADOS
//BlueServer.sendToAllClients("<doc><mensaje from=\"Nuevo\">Otro conectado</mensaje></doc>");
* Intentamos tomar los Stream de Lectura y Escritura del Cliente conectado
try{
out = new PrintWriter(socket.getOutputStream(), true);
in = new BufferedReader (new InputStreamReader(socket.getInputStream()));
String inputLine;
// Array que tomara cada uno de los caracteres del mensaje
char buf[] = new char[1];
* El Thread del cliente comienza a escuchar TODOS los mensajes que su cliente
* envia, este Thread se encarga de enviar el a todos los demas clientes conectados.
while ( in.read(buf, 0 ,1)!= -1 ){ // Siempre es diferente de -1 por que nuestro array se esta
// validando completamente, esto es que se esta tomando el
// el largo del array y no alguna posicion dentro de este.
inputLine = "";
// En caso que exista mas de 1 mensaje solo se toma el primero
while( buf[0]!='\u0000' ){
inputLine = inputLine + buf[0];
in.read(buf, 0 ,1);
// Solo mandar el mensaje que fue recibido del cliente
inputLine = inputLine + '\u0000';
// Va el mensaje a TODOS LOS CLIENTES
BlueServer.sendToAllClients(inputLine);
BlueServer.deleteClient(this); // Se manda eliminar TODO rastro del cliente conectado (IP, HostNAme, etc)
in.close(); // Cerramos Stream de Lectura
out.close(); // Cerramos Stream de Escritura
socket.close(); // Cerramos el socket del CLIENTE
}catch(IOException e){
e.printStackTrace();
* Mandar mensaje
public void send(String message){
out.println(message);
} THANK YOU SO MUCH!
I hope your help.
*{color:#993300}Ralph Moran{color}*

Hi,
The "There is no process to read data written to a pipe" error is an
AIX-specific error message, which lies in the native method
implementation of the corresponding Java code.
It happens when the message written to a pipe is
not read by any process. When plenty of requests are sent to the
accepting side, the accepting side might fail to read the request
because of timeouts, blocked threads or other reasons, and then this
exception is thrown.
#1289145 Axis adapter's connection timeout value setting
http://www.ibm.com/developerworks/aix/library/au-aix-javatraps/index.html
Regards,
Aidan

XSLT for converting the determination server xml into the debugger xml

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A while back I wrote some XSLT to convert SOAP request messages to the XDS format. I created a simple C# GUI to select the input SOAP and output XDS files. It was modelled on 10.1 schema though and I haven't adapted it yet for 10.2+. I will at some point though.
I've found quickly being able to convert to the XDS format and debugging in the OPM rather than trawling through 1000's of lines of decision report a huge time saver.
Evert

Error on the installation of Web Application Server Java 6.40 SP9 on my PC

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I got the following error when I try to install Web Application Server Java 6.40 SP9 on my laptop using the CD that comes with the Book 'Java Programming with the SAP Web Application Server'. I'm currently using window XP.
The installation failed on the 3rd step 'SAP System Installation'.
I logged on my laptop as my own userid, but I should have the administrator's rights.
ERROR 2007-05-15 15:43:10
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Error logs message " HTTP3090: Failed to create logging thread " ?

hi, i need your help.
i have "sjs web6.1sp8" on hp-ux machine
below message suddenly appear at load testing.
[Jul/2010:03:01:52] failure ( 6477): HTTP3090: Failed to create logging thread (Insufficient resources)
[Jul/2010:03:04:53] failure ( 6477): Error creating DaemonSession thread
what's mean message? how do action?
thank for rep..
Edited by: swardseven on Aug 1, 2010 10:38 PM

First - 6.1sp8 is old. Very old. You should be testing with the latest SP of 6.1 if at all possible.
Second - According to the error the process is somehow resource constrained. Are you out of RAM? Swap? Is the process out of file descriptors? Some other resource? Check your OS limits and per-process limits and compare them to the Web Server consumption.

What is better way for creating a thread? Why?

A thread can be create in two way, extending Thread class or implimenting Runnable.
What is better way for creating a thread? Why?

Implementing Runnable
See FAQ #1 here [http://forum.java.sun.com/ann.jspa?annID=9]

Determinations Server (Java) - Creates unmanaged threads

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