php-java-bridge-users

[Php-java-bridge-users] NoClassDefFoundError

[<php...@li...>]

When Tomcat  starts I got an error msg showing JavaBridge was not loaded. Would someone help to find the cause?

Oct 24, 2008 12:45:42 PM org.apache.catalina.core.StandardContext listenerStart
SEVERE: Error configuring application listener of class php.java.servlet.RequestListener
java.lang.NoClassDefFoundError: javax/servlet/ServletRequestListener
        at java.lang.ClassLoader.defineClass1(Native Method)
        at java.lang.ClassLoader.defineClass(ClassLoader.java:620)
        at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
        at java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
        at java.net.URLClassLoader.access$000(URLClassLoader.java:56)
        at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:299)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:276)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
        at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1302)
        at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1233)
        at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3786)
        at org.apache.catalina.core.StandardContext.start(StandardContext.java:4342)
        at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:791)
        at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:771)
        at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:525)
        at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:830)
        at org.apache.catalina.startup.HostConfig.deployWARs(HostConfig.java:719)
        at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:490)
        at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1149)
        at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:311)
        at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)
        at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)
        at org.apache.catalina.core.StandardHost.start(StandardHost.java:719)
        at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
        at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
        at org.apache.catalina.core.StandardService.start(StandardService.java:516)
        at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)
        at org.apache.catalina.startup.Catalina.start(Catalina.java:578)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288)
        at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)
Oct 24, 2008 12:45:42 PM org.apache.catalina.core.StandardContext listenerStart
SEVERE: Skipped installing application listeners due to previous error(s)
Oct 24, 2008 12:45:42 PM org.apache.catalina.core.ApplicationContext log
INFO: ContextListener: contextInitialized()
Oct 24, 2008 12:45:42 PM org.apache.catalina.core.ApplicationContext log
INFO: SessionListener: contextInitialized()

Accessing http://localhost:8080 I get TOmcat homepage, but http://localhost:8080/JavaBridge/ gives me 404 / The requested resource () is not available.

When I run "java -jar JavaBridge.jar SERVLET:8080 3 javabridge_servlet.log" everything works fine, but I can't get it to work with Tomcat.
May be it's related o Tomcat's permissions, but I'm not sure which settings to change. I already inserted in catalina.policy:
grant codeBase "file:${catalina.home}/webapps/JavaBridge/WEB-INF/lib/-" {
    permission java.security.AllPermission;
 };
with no success, no matter if I start tomcat with or without "-security" parameter


Any clue?

[Php-java-bridge-users] NoClassDefFoundError

[<php...@li...>]

Hi,

I should say something about the NoClassDefFoundError
"javax.script.ScriptEngine".

This bug is caused by a serious bug in Sun's Java platform. I'd say that
this bug causes 60% of all support requests. It is impossible to detect, and
even a simple file system copy operation may trigger this bug.

To solve this problem, please remove all files which export the feature and
then install all required dependencies of the feature which has requested
the failing feature (I should say "component", but Java doesnt support
components).

BTW: There was a proposal for a SML-type module system based on generics.
But since Java doesn't support generics on byte code level (Java's generics
are good for suns marketing dept. but useless otherwise), this would be a
major change.

Regards,
Jost Boekemeier
--

Apr 2, 2009 5:13 nachm. schrieb am "Jost Bekemeier" <
jos...@go...>:

Hi,

please take a look at the exception again. It is a NoSuchProcedureException,
not a NoSuchMethodException. This means that a Java procedure with that name
doesnt exist.

The other failure is caused by a missing context listener class from some
other web app.

Regards,
Jost Boekemeier

Apr 2, 2009 4:43 nachm. schrieb am <
php...@li...>:

Hi Jost,

Thank you for the swift reply. Both apache and tomcat servers are definitely
up and running, I'm actually running it on my local machine. I have checked
my tomcat server.xml config file and it seems as tho I'm not using AJP at
all. That section is commented out. I did try to telnet to the webserver and
it was accepting empty PUT commands for the resource /HelloWorldWebApp/ ,
but not for the .phpjavabridge resource. For this I code the status code
403. That's when I remembered I didn't put the servlet definitions in my
web.xml. So I changed my web.xml to look like;

<?xml version="1.0" encoding="UTF-8"?>
<web-app id="WebApp_ID" version="2.4"
xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">

<display-name>HelloWorldWebApp</display-name>

    <!-- PHP Servlet:
back-end for Apache or IIS -->
   <servlet>

<servlet-name>PhpJavaServlet</servlet-name>

<servlet-class>php.java.servlet.PhpJavaServlet</servlet-class>


<!-- Allow non-local PHP clients.  Default is Off. -->
        <!-- Leave
this off if your server is connected to the internet. -->
      <!--

<init-param>
          <param-name>promiscuous</param-name>

<param-value>On</param-value>
        </init-param>
       -->


<load-on-startup>0</load-on-startup>
   </servlet>


<servlet-mapping>
       <servlet-name>PhpJavaServlet</servlet-name>

<url-pattern>*.phpjavabridge</url-pattern>
   </servlet-mapping>


<welcome-file-list>
       <welcome-file>index.html</welcome-file>

<welcome-file>index.htm</welcome-file>

<welcome-file>index.jsp</welcome-file>

<welcome-file>default.html</welcome-file>

<welcome-file>default.htm</welcome-file>

<welcome-file>default.jsp</welcome-file>
   </welcome-file-list>
</web-app>

However in my catalina.out log file I get the following error on startup;

ERROR - Exception sending context initialized event to listener instance of
class php.java.servlet.ContextLoaderListener
java.lang.NoClassDefFoundError: javax/script/ScriptException

Even with this however I can get JVM system info from my php scripts;

 $SystemClazz =     Java("java.lang.System");
   echo $SystemClazz->getProperties();

But calling my own defined classes I get the following error;


Fatal error: Uncaught [[o:Exception]:"java.lang.Exception: Invoke failed:
[[c:HelloWorld]]->getMessage. Cause:
php.java.bridge.NoSuchProcedureException: static getMessage()


The method and class are definitely there, contained in the WEB-INF/classes
directory of my webapp.

One last thing. Looking at the javabridge template I also added the
following to my web.xml;


 <!-- support for J2EE cluster -->
   <distributable/>

   <!-- Override
the define ("JAVA_HOSTS", "127.0.0.1:8080"); -->
   <!-- setting from your
PHP script, Config.inc or Java.inc or -->
   <!-- JavaProxy.php, so that
PHP connects back to the current VM. -->
   <context-param>

<param-name>override_hosts</param-name>

<param-value>On</param-value>
   </context-param>

   <!-- Attach the
JSR223 script factory to the servlet context -->
  <listener>

<listener-class>php.java.servlet.ContextLoaderListener</listener-class>

</listener>

However when I do this, the application simply fails to load and I cannot
even retrieve system info. I get the following error message;

[2009-04-02 15:05:59,978] ERROR - Error listenerStart
[2009-04-02 15:05:59,978] ERROR - Context [/JavaBridge] startup failed due
to previous errors
[2009-04-02 15:05:59,979] ERROR - Exception sending context destroyed event
to listener instance of class php.java.servlet.ContextLoaderListener
java.lang.NoClassDefFoundError: javax/script/ScriptException
...

Incidentally when I attempt to simply place the JavaBridgeTemplate.war into
my webapps directory I have the same issue.

Any ideas?

I am running tomcat 5.5.25.

Thank You

On 2/4/09 13:03, "php...@li..."

<php...@li...> wrote: > Hi, > > the
php-servlet.jar is missing in t...
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[Php-java-bridge-users] NoClassDefFoundError

[<php...@li...>]

Hello!

if a user copies a library to java.ext.dirs and the library tries to access javax/servlet, a NoClassDefFoundError is thrown.

The error message is:
Unresolved external reference: java.lang.NoClassDefFoundError: 
javax/servlet/http/HttpServletResponse. -- Unable to call the method, 
see the README section "Java platform issues" for details and DO NOT 
REPORT THIS PROBLEM TO THE PHP/Java Bridge MAILING LIST! 

I think the error message should include the current class and its loader.

Look here: http://forums.sun.com/thread.jspa?threadID=5440266&start=0&tstart=0


Peter




      

Re: [Php-java-bridge-users] NoClassDefFoundError

[<php...@li...>]

Hi,

> if a user copies a library to java.ext.dirs and the library tries to access
> javax/servlet, a NoClassDefFoundError is thrown.

I think this is a misunderstanding. If users link their java
applications according to the documents

  http://php-java-bridge.sourceforge.net/pjb/desktop-apps.php

or

  http://php-java-bridge.sourceforge.net/pjb/webapp.php

then they shouldn't get these link-time errors. Adding more
information to the error message is not useful, users probably don't
understand what it means anyway.

But our FAQ should be cleaned up, of course. The sentence "All
libraries and their dependencies must be loaded by one, and only one
class loader." is obsolete, as we don't use a dynamic class loader
anymore. Instead we should link directly to the above documents.


Regards,
Jost Bökemeier

Re: [Php-java-bridge-users] NoClassDefFoundError

[<php...@li...>]

Som more info about the software installed:
host:/opt/tomcat/lib # /opt/tomcat/bin/catalina.sh version
Using CATALINA_BASE:   /opt/tomcat
Using CATALINA_HOME:   /opt/tomcat
Using CATALINA_TMPDIR: /opt/tomcat/temp
Using JRE_HOME:       /usr
Server version: Apache Tomcat/6.0.18
Server built:   Jul 22 2008 02:00:36
Server number:  6.0.18.0
OS Name:        Linux
OS Version:     2.4.28-vs1.29
Architecture:   i386
JVM Version:    1.6.0_03-b05
JVM Vendor:     Sun Microsystems Inc.

JavaBridge was correclty deployed from JavaBridge.war under webapps.


  ----- Original Message ----- 
  From: php...@li... 
  To: php...@li... 
  Sent: Friday, October 24, 2008 2:23 PM
  Subject: [Php-java-bridge-users] NoClassDefFoundError


  When Tomcat  starts I got an error msg showing JavaBridge was not loaded. Would someone help to find the cause?

  Oct 24, 2008 12:45:42 PM org.apache.catalina.core.StandardContext listenerStart
  SEVERE: Error configuring application listener of class php.java.servlet.RequestListener
  java.lang.NoClassDefFoundError: javax/servlet/ServletRequestListener
          at java.lang.ClassLoader.defineClass1(Native Method)
          at java.lang.ClassLoader.defineClass(ClassLoader.java:620)
          at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
          at java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
          at java.net.URLClassLoader.access$000(URLClassLoader.java:56)
          at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
          at java.security.AccessController.doPrivileged(Native Method)
          at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
          at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
          at java.lang.ClassLoader.loadClass(ClassLoader.java:299)
          at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:276)
          at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
          at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1302)
          at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1233)
          at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3786)
          at org.apache.catalina.core.StandardContext.start(StandardContext.java:4342)
          at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:791)
          at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:771)
          at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:525)
          at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:830)
          at org.apache.catalina.startup.HostConfig.deployWARs(HostConfig.java:719)
          at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:490)
          at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1149)
          at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:311)
          at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)
          at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)
          at org.apache.catalina.core.StandardHost.start(StandardHost.java:719)
          at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
          at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
          at org.apache.catalina.core.StandardService.start(StandardService.java:516)
          at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)
          at org.apache.catalina.startup.Catalina.start(Catalina.java:578)
          at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
          at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
          at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
          at java.lang.reflect.Method.invoke(Method.java:597)
          at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288)
          at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)
  Oct 24, 2008 12:45:42 PM org.apache.catalina.core.StandardContext listenerStart
  SEVERE: Skipped installing application listeners due to previous error(s)
  Oct 24, 2008 12:45:42 PM org.apache.catalina.core.ApplicationContext log
  INFO: ContextListener: contextInitialized()
  Oct 24, 2008 12:45:42 PM org.apache.catalina.core.ApplicationContext log
  INFO: SessionListener: contextInitialized()

  Accessing http://localhost:8080 I get TOmcat homepage, but http://localhost:8080/JavaBridge/ gives me 404 / The requested resource () is not available.

  When I run "java -jar JavaBridge.jar SERVLET:8080 3 javabridge_servlet.log" everything works fine, but I can't get it to work with Tomcat.
  May be it's related o Tomcat's permissions, but I'm not sure which settings to change. I already inserted in catalina.policy:
  grant codeBase "file:${catalina.home}/webapps/JavaBridge/WEB-INF/lib/-" {
      permission java.security.AllPermission;
   };
  with no success, no matter if I start tomcat with or without "-security" parameter


  Any clue?

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Re: [Php-java-bridge-users] NoClassDefFoundError

[<php...@li...>]

I changed  from SDK  to JDK (jdk-6u10-linux-i586), but still get error:

Oct 24, 2008 5:53:17 PM org.apache.catalina.core.StandardContext loadOnStartup
SEVERE: Servlet /JavaBridge threw load() exception
java.lang.IllegalAccessError: class php.java.script.servlet.PhpScriptTemporarilyOutOfResourcesException cannot access its superclass php.java.script.PhpScriptException
        at java.lang.ClassLoader.defineClass1(Native Method)
        at java.lang.ClassLoader.defineClass(ClassLoader.java:621)
        at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)

Re: [Php-java-bridge-users] NoClassDefFoundError in Tomcat

[<php...@li...>]

Hi,

please re-read the README section "Java platform issues" for details. 

It is nearly impossible to fix these problems on app level, so your only option is to re-install your J2EE server again. -- You could try to clean the work/Catalina and temp directories and check if that helps.


Regards,
Jost Boekemeier



      

Re: [Php-java-bridge-users] NoClassDefFoundError in Tomcat

[<php...@li...>]

Problem solved. I uninstalled jdk and tomcat and instaled jre1.5.0_16 and tomcat_5.5.27. 

[Php-java-bridge-users] JSR 223 and Tomcat security manager

[<php...@li...>]

Hi,

I noticed that, if tomcat was started with the -security flag, the JSR 223 examples did not work. I have added the necessary doPrivileged() calls to  EngineFactory and to the Servlet* ScriptEngines, so that eval() is now called with the security context of the PHP/Java Bridge library [1].


Regards,
Jost Boekemeier

[1] You must move all jars from the application- to the library folder, to make this work, of course.