[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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--

Jaz Chana Integration Specialist Lean Practitioner Direct Dial: 0151 290
5917 Email: jaz.chana@cdm...

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