HI!

When my Java program is being started in the console, the ContextClassLoader (Thread.currentThread().getContextClassLoader()) is set.

But when the same program runs as Win32 service, the ContextClassLoader is null!

This also applies to new threads, that are being created by the program, not only the main thread.

Anyone any idea, why?

Attaching slightly modified TestService from JNA/contrib to show the problem.

Start with "java.exe -cp ... jnacontrib.win32.TestService x" and also as service.

The command line is exactly the same (besides the "x").

The ContextClassLoader is being written to C:\TestService.log.

Thanks!

Thomas /* * TestService.java * * Created on 12. September 2007, 12:49 * * To change this template, choose Tools | Template Manager * and open the template in the editor. */

package com.apag.p2plus.p2core.win32;

import java.io.File; import java.io.FileWriter; import java.io.IOException; import java.io.PrintWriter; import java.util.logging.Level; import java.util.logging.Logger;

/** * TestService. */ public class TestService extends Win32Service {

/** * main. * @param args arguments */ public static void main(String[] args) throws Exception { TestService service = new TestService();

if(args.length == 1) {

if(args[0].equalsIgnoreCase("install")) { System.out.println(service.install("TestService DisplayName", "TestService Description", null, null, null));

} else if(args[0].equalsIgnoreCase("uninstall")) { System.out.println(service.uninstall());

} else if(args[0].equalsIgnoreCase("query")) { System.out.println(service.getStatus());

} else { System.out.println("Arguments:"); System.out.println("install = install service"); System.out.println("uninstall = uninstall service"); System.out.println("<none> = run service"); testClassLoader(); System.exit(0); }

} else { service.init(); } }

/** * Creates a new instance of TestService. */ public TestService() { super("TestService"); }

/** * Will be called on start. */ public void onStart() { log("onStart"); testClassLoader(); }

/** * Will be called on stop. */ public void onStop() { log("onStop"); }

public static void testClassLoader() { log("ContextClassLoader: " + Thread.currentThread().getContextClassLoader()); }

public static void log(String text) { try { PrintWriter pw; pw = new PrintWriter(new FileWriter(new File("C:\\TestService.log"), true)); pw.println(text); pw.close(); } catch (IOException ex) { Logger.getLogger(TestService.class.getName()).log(Level.SEVERE, null, ex); } } }