RE: [Wrapper-user] Please help me ... service was launched, but f ailed to start.

SourceForge Headquarters 1320 Columbia Street Suite 310 San Diego, CA 92101 +1 (858) 422-6466

Christophe,

1) you should print the stacktrace (e.printStackTrace()) in your code,
because now, if there is an exception I think the JVM just exits silently,
and this could be happening 5 times in a row.

2) You are using integration method 3 (see website of the java service
wrapper), and for this method to work, your start(args) method must return.
At the moment, it stays in its while-loop forever..
Maybe you need yet another thread that watches over your mailing thread:

public Integer start(String[] args) {
	try{
		Mailing mailing = new Mailing();
		mailing.setDaemon(true);
		mailing.start();

		MailingWatcher watcher = new MailingWatcher(mailing);
		Watcher.start();
	}
	catch(Exception e){
		System.exit(1);
	}
	return null;
}

/**
 * Inner class for watching the Mailing thread.
 */
class MailingWatcher extends Thread
{
	private Mailing mailing;

	public MailingWatcher(Mailing mailing)
	{
		this.mailing = mailing;
	}

	public void run()
	{
		while (mailing.isAlive()){
			System.out.println("Thread encore vivant !");
			Thread.sleep(6000);
		}
	}
}

Johan

Met vriendelijke groet,
Johan Stuijt
Application Engineer
MES Expert Center
Doorkiesnummer: 075 612 79 34

GTI Industrie Noordwest bv
	Industrial Automation

	Houthavenkade 44  1506 PD Zaandam
	Postbus 1377  1500 AJ Zaandam
	tel.: 075 612 76 00   fax: 075 612 30 60
	www.gti-group.com/ia

-----Oorspronkelijk bericht-----
Van: Christophe Leroux [mailto:ler...@ho...] 
Verzonden: woensdag 24 november 2004 13:55
Aan: wra...@li...
Onderwerp: [Wrapper-user] Please help me ... service was launched, but
failed to start.

Dear all,

First of all, I would like to say that sourceforge is a very huge knowledge 
source for me. I like your work and hope your success will continue growing.

Ohterwise, I'm really disapointed about the way to execute my app as a 
service with the wrapper.

Here is the content of my wrapper.conf :

Starting the SendLogByMail service...
--> Wrapper Started as Service
Using system timer.
server listening on port 32000.
Launching a JVM...
command: "C:\J2EE\SDK1.4\jdk\bin\java.exe" -Djava.library.path="classes/lib"

-classpath "classes/" -Dwrapper.key="Rfv8sZ_PcoRLht4W" -Dwrapper.port=32000 
-Dwrapper.debug="TRUE" -Dwrapper.use_system_time="TRUE" 
-Dwrapper.version="3.1.2" -Dwrapper.native_library="wrapper" 
-Dwrapper.service="TRUE" -Dwrapper.cpu.timeout="10" -Dwrapper.jvmid=1 
com.cleroux.Main
JVM started (PID=3392)
WrapperManager class initialized by thread: main  Using classloader: 
sun.misc.Launcher$AppClassLoader@e80a59
Wrapper Manager: JVM #1
Wrapper Manager: Registering shutdown hook
Wrapper Manager: Using wrapper
Loaded native library: wrapper.dll
Calling native initialization method.
Initializing WrapperManager native library.
Java Executable: C:\J2EE\SDK1.4\jdk\bin\java.exe
Windows version: 5.1.2600
Java Version   : 1.4.2_04-b04 Java HotSpot(TM) Client VM
Java VM Vendor : Sun Microsystems Inc.

Wrapper (Version 3.1.2) http://wrapper.tanukisoftware.org

WrapperManager.start(com.cleroux.Main@14b7453, args[]) called by thread: 
main
Open socket to wrapper...
Opened Socket
Send a packet KEY : Rfv8sZ_PcoRLht4W
handleSocket(Socket[addr=/127.0.0.1,port=32000,localport=2313])
accepted a socket from 127.0.0.1 on port 2313
read a packet KEY : Rfv8sZ_PcoRLht4W
Got key from JVM: Rfv8sZ_PcoRLht4W
send a packet LOW_LOG_LEVEL : 1
send a packet PING_TIMEOUT : 30
Start Application.
send a packet START : start
Received a packet LOW_LOG_LEVEL : 1
Wrapper Manager: LowLogLevel from Wrapper is 1
Received a packet PING_TIMEOUT : 30
Wrapper Manager: PingTimeout from Wrapper is 30000
Received a packet START : start
calling listener.start()
Waiting to start...
Waiting to start...
Waiting to start...
Waiting to start...
Waiting to start...
Startup failed: Timed out waiting for signal from JVM.

As you can see, the wrapper try 5 times to launch the service 
unsuccessfully.

I really ask my self why it does not !

If any one had an idea, I would be really happy !

Here is an extract of my main class :

public class Main implements WrapperListener{

public Integer start(String[] arg0) {
		boolean flag=true;

		try{
			Mailing mailing = new Mailing();
			mailing.setDaemon(true);
			mailing.start();
			while (mailing.isAlive()){
				System.out.println("Thread encore vivant
!");
				Thread.sleep(6000);
			}
		}
		catch(Exception e){
			System.exit(1);
		}
		return null;
	}

public static void main(String[] args) {
		WrapperManager.start(new Main(), args);
	}
}

Thanks for your help !

Bye,

Christophe (please excuse me for the quality of my english !)

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