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.
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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>
