[equinox-dev] Running a compiled JSP servlet via Servlet extension point

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[equinox-dev] Running a compiled JSP servlet via Servlet extension points

From: "Peter Neubauer" <pnb@xxxxxxxxxxx>
Date: Fri, 5 May 2006 14:00:14 +0200
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Thread-topic: Running a compiled JSP servlet via Servlet extension points

Hi,

not sure this is the right forum but since I am using only equinox incubator projects to get this running ...

Basically, I'm trying to register a basic JspServlet, like

package org.apache.jsp;

import java.io.IOException;

import javax.servlet.ServletException;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import org.apache.jasper.runtime.HttpJspBase;

public class TestJsp extends HttpJspBase {

@Override

public void _jspService(HttpServletRequest arg0, HttpServletResponse arg1)

throws ServletException, IOException {

arg1.getOutputStream().println("hello jsp");

arg1.getOutputStream().flush();

}

via the org.eclipse.equinox.servlet.ext registry extension points. Usual servlets in the same bundle are no problem to load and register using the plugin.xml.

However, having imported all jasper and javax.servlet packages from other library bundles into the current bundle, still on instantiating the servlet I get the stacktrace below. I'm running on Eclipse 3.2RC2 and with the servlet.ext from CVS, plus some other jars exposing the different LIBs.

Any hints on this? I'm thinking this should be a normal servlet after all, and for the others the javax.servlet.Servlet is found too? But I have no experiences with jasper stuff.

Cheers

/peter

org.eclipse.core.runtime.CoreException: Plug-in web.workbench was unable to load class org.apache.jsp.TestJsp.

at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.throwException(RegistryStrategyOSGI.java:165)

at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createExecutableExtension(RegistryStrategyOSGI.java:151)

at org.eclipse.core.internal.registry.ExtensionRegistry.createExecutableExtension(ExtensionRegistry.java:759)

at org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:243)

at org.eclipse.core.internal.registry.ConfigurationElementHandle.createExecutableExtension(ConfigurationElementHandle.java:51)

at org.eclipse.equinox.servlet.ext.ServletManager.added(ServletManager.java:72)

at org.eclipse.equinox.servlet.ext.ExtensionPointTracker.open(ExtensionPointTracker.java:66)

at org.eclipse.equinox.servlet.ext.ServletManager.start(ServletManager.java:51)

at org.eclipse.equinox.servlet.ext.HttpServiceCustomizer.addingService(HttpServiceCustomizer.java:43)

at org.osgi.util.tracker.ServiceTracker$Tracked.trackAdding(ServiceTracker.java:1011)

at org.osgi.util.tracker.ServiceTracker$Tracked.trackInitialServices(ServiceTracker.java:875)

at org.osgi.util.tracker.ServiceTracker.open(ServiceTracker.java:282)

at org.osgi.util.tracker.ServiceTracker.open(ServiceTracker.java:221)

at org.eclipse.equinox.servlet.ext.ExtActivator.start(ExtActivator.java:27)

at org.eclipse.osgi.framework.internal.core.BundleContextImpl$2.run(BundleContextImpl.java:995)

at java.security.AccessController.doPrivileged(Native Method)

at org.eclipse.osgi.framework.internal.core.BundleContextImpl.startActivator(BundleContextImpl.java:989)

at org.eclipse.osgi.framework.internal.core.BundleContextImpl.start(BundleContextImpl.java:970)

at org.eclipse.osgi.framework.internal.core.BundleHost.startWorker(BundleHost.java:317)

at org.eclipse.osgi.framework.internal.core.AbstractBundle.resume(AbstractBundle.java:329)

at org.eclipse.osgi.framework.internal.core.Framework.resumeBundle(Framework.java:1037)

at org.eclipse.osgi.framework.internal.core.StartLevelManager.resumeBundles(StartLevelManager.java:573)

at org.eclipse.osgi.framework.internal.core.StartLevelManager.incFWSL(StartLevelManager.java:495)

at org.eclipse.osgi.framework.internal.core.StartLevelManager.doSetStartLevel(StartLevelManager.java:275)

at org.eclipse.osgi.framework.internal.core.StartLevelManager.dispatchEvent(StartLevelManager.java:455)

at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:189)

at org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.run(EventManager.java:291)

org.eclipse.core.runtime.CoreException[1]: java.lang.NoClassDefFoundError: javax/servlet/Servlet

at java.lang.ClassLoader.defineClass1(Native Method)

at java.lang.ClassLoader.defineClass(Unknown Source)

at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.defineClass(DefaultClassLoader.java:160)

at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.defineClass(ClasspathManager.java:491)

at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findClassImpl(ClasspathManager.java:461)

at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findLocalClassImpl(ClasspathManager.java:420)

at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findLocalClass(ClasspathManager.java:403)

at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.findLocalClass(DefaultClassLoader.java:188)

at org.eclipse.osgi.framework.internal.core.BundleLoader.findLocalClass(BundleLoader.java:339)

at org.eclipse.osgi.framework.internal.core.BundleLoader.findClass(BundleLoader.java:391)

at org.eclipse.osgi.framework.internal.core.BundleLoader.findClass(BundleLoader.java:352)

at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:83)

at java.lang.ClassLoader.loadClass(Unknown Source)

at java.lang.ClassLoader.loadClassInternal(Unknown Source)