On 19/7/09 05:13, Lucas Vickers wrote:
For what it's worth.
Every now and then tomcat throws that exception again.
I then shut down tomcat, touch the .policy file, start tomcat, and it works.
Are you using a repackaged Tomcat or have you downloaded and installed
it yourself?
How, exactly, are you starting and stopping it?
The permissions below shouldn't need setting, even if you're running a
SecurityManager. Not my area of expertise, but if this is the fix,
something else, somewhere, is horribly wrong.
Don't forget to check that you're not ending up with a servlet-api.jar
(or something similar, with the contained classes) in your
webapp/WEB-INF/lib.
Ending up with javax.servlet.* classes actually inside your webapp will
cause all manner of fail conditions.
p
On Sat, Jul 18, 2009 at 9:29 PM, Lucas Vickers<lucasvick...@gmail.com>wrote:
// ========== WEB APPLICATION PERMISSIONS
=====================================
// These permissions are granted by default to all web applications
// In addition, a web application will be given a read FilePermission
// and JndiPermission for all files and directories in its document root.
grant {
...
// Needed for TABS
permission java.util.PropertyPermission "org.apache.tomcat.dbcp.*",
"read";
permission java.util.PropertyPermission "javax.servlet.*", "read";
permission java.util.PropertyPermission "javax.servlet.http.*", "read";
was added. I tested by commenting out and then uncommenting. Works when
it's not commented out.
I run using "catalina.sh start"
if commented out, I get:
HTTP Status 500 -
------------------------------
*type* Exception report
*message*
*description* *The server encountered an internal error () that prevented
it from fulfilling this request.*
*exception*
javax.servlet.ServletException: Error allocating a servlet instance
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:849)
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:454)
java.lang.Thread.run(Thread.java:619)
*root cause*
java.lang.NoClassDefFoundError: javax/servlet/http/HttpServlet
java.lang.ClassLoader.defineClass1(Native Method)
java.lang.ClassLoader.defineClass(ClassLoader.java:621)
java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
java.net.URLClassLoader.access$000(URLClassLoader.java:56)
java.net.URLClassLoader$1.run(URLClassLoader.java:195)
java.security.AccessController.doPrivileged(Native Method)
java.net.URLClassLoader.findClass(URLClassLoader.java:188)
java.lang.ClassLoader.loadClass(ClassLoader.java:307)
sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
java.lang.ClassLoader.loadClass(ClassLoader.java:252)
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1302)
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1233)
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:849)
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:454)
java.lang.Thread.run(Thread.java:619)
*root cause*
java.lang.ClassNotFoundException: javax.servlet.http.HttpServlet
java.net.URLClassLoader$1.run(URLClassLoader.java:200)
java.security.AccessController.doPrivileged(Native Method)
java.net.URLClassLoader.findClass(URLClassLoader.java:188)
java.lang.ClassLoader.loadClass(ClassLoader.java:307)
sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
java.lang.ClassLoader.loadClass(ClassLoader.java:252)
java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
java.lang.ClassLoader.defineClass1(Native Method)
java.lang.ClassLoader.defineClass(ClassLoader.java:621)
java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
java.net.URLClassLoader.access$000(URLClassLoader.java:56)
java.net.URLClassLoader$1.run(URLClassLoader.java:195)
java.security.AccessController.doPrivileged(Native Method)
java.net.URLClassLoader.findClass(URLClassLoader.java:188)
java.lang.ClassLoader.loadClass(ClassLoader.java:307)
sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
java.lang.ClassLoader.loadClass(ClassLoader.java:252)
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1302)
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1233)
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:849)
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:454)
java.lang.Thread.run(Thread.java:619)
*note* *The full stack trace of the root cause is available in the Apache
Tomcat/6.0.20 logs.*
------------------------------
Apache Tomcat/6.0.20
On Sat, Jul 18, 2009 at 9:19 PM, Caldarale, Charles R<
chuck.caldar...@unisys.com> wrote:
From: Lucas Vickers [mailto:lucasvick...@gmail.com]
Subject: Re: Tomcat 6 database pooling causes HttpServlet class not
found exception
Well I can confirm that adding the classes to catalina.policy
even when i am not explicitly running with -security , does fix the
issue
What exactly did you change in catalina.policy?
What happens if you undo those changes (and only those changes) now?
- Chuck
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