php-java-bridge-users

[Php-java-bridge-users] NoClassDefFound error - how do I resolve?

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

Hullo all.

Well I am slowly getting closer to converting a sample java class  
from our processing companies API (for credit card transactions) into  
a woring PHP script using php-java bridge.  Thanks for all the  
helpful tips I received so far.

I am currently stuck with an error when calling a particular method  
of a class from the JAR file I included at the top of my script.

MY CODE
=========
java_require("/Library/WebServer/Documents/cj/simapi-java-5.0.0/lib/ 
cybsclients15.jar");
java_require("/Library/WebServer/Documents/cj/simapi-java-5.0.0/lib/ 
cybssecurity.jar");
java_require("/Library/WebServer/Documents/cj/simapi-java-5.0.0/lib/ 
xercesImpl.jar");
java_require("/Library/WebServer/Documents/cj/simapi-java-5.0.0/lib/ 
xml-apis.jar");

// Set up var with the class for generating the charge request
$reply_class = new JavaClass("com.cybersource.ws.client.Client");
// create new hashmap variable to use for results
$reply = new JavaClass("java.util.HashMap");
$reply = java_util_hashMap();
$reply = $reply_class->runTransaction($request, $props);

RESULTS
========
[o(Exception):"java.lang.Exception: Invoke failed: [c(Client)]- 
 >runTransaction((Map)o(HashMap), (Properties)o(Properties)). Cause:  
java.lang.ClassNotFoundException: Unresolved external reference:  
java.lang.NoClassDefFoundError: com/cybersource/security/exception/ 
SecuritySystemException. -- Unable to call the method, see the README  
section "Java platform issues" for details. Responsible VM:  
1.5.0_06@http://apple.com/" at: #-6  
php.java.bridge.JavaBridge.getUnresolvedExternalReferenceException 
(JavaBridge.java:481) #-5 php.java.bridge.JavaBridge.Invoke 
(JavaBridge.java:1084) #-4 php.java.bridge.Request.handleRequest 
(Request.java:499) #0 [internal function]: Java->__call 
('runTransaction', Array) #1 /Library/WebServer/Documents/cj/simapi- 
java-5.0.0/samples/nvp/AuthCaptureSample.php(114): JavaClass- 
 >runTransaction(Object(JavaArray), Object(JavaArray)) #2 {main}]


Looking back at the docs for the Bridge, it says that if you get a  
"NoClassDefFound" error it means there is another class that the  
current class is trying to reference or call that is missing (so the  
Client->runTransaction is missing something).

Does this mean that the four java_require statements at the top of my  
PHP script do not contain the missing class?  These are all the JAR  
files that were provided as part of this API package from our card  
processing company.

If it means that there is some other JAR I need a java_require for,  
how do I go about finding what JAR I should include???

Thanks,

Jon

Re: [Php-java-bridge-users] NoClassDefFound error - how do I resolve?

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

Hi again.

I am replying to my own question post since a friend of mine helped  
me track down my NoClassDefFound problem (thanks Russell).

The error is in the java_require's at the beginning of my code.  I  
needed to use the format java_require(JAR1;JAR2;JAR3;JAR4); instead  
of separating the requires.  There is cross calling in the classes in  
the 4 libraries I use so they must all be brought into the same  
memory space.  See the following reference for full details:

http://php-java-bridge.sourceforge.net/documentation/PHP-API/html/ 
java_8c.html#doc23

I read this before, but it didn't rally gel in my brain until I was  
reminded of how libraries are cached by the back-end loader.

Jon

On Oct 15, 2006, at 4:49 PM, php-java-bridge- 
us...@li... wrote:

> Hullo all.
>
> Well I am slowly getting closer to converting a sample java class  
> from our processing companies API (for credit card transactions)  
> into a woring PHP script using php-java bridge.  Thanks for all the  
> helpful tips I received so far.
>
> I am currently stuck with an error when calling a particular method  
> of a class from the JAR file I included at the top of my script.
>
> MY CODE
> =========
> java_require("/Library/WebServer/Documents/cj/simapi-java-5.0.0/lib/ 
> cybsclients15.jar");
> java_require("/Library/WebServer/Documents/cj/simapi-java-5.0.0/lib/ 
> cybssecurity.jar");
> java_require("/Library/WebServer/Documents/cj/simapi-java-5.0.0/lib/ 
> xercesImpl.jar");
> java_require("/Library/WebServer/Documents/cj/simapi-java-5.0.0/lib/ 
> xml-apis.jar");
>
> // Set up var with the class for generating the charge request
> $reply_class = new JavaClass("com.cybersource.ws.client.Client");
> // create new hashmap variable to use for results
> $reply = new JavaClass("java.util.HashMap");
> $reply = java_util_hashMap();
> $reply = $reply_class->runTransaction($request, $props);
>
> RESULTS
> ========
> [o(Exception):"java.lang.Exception: Invoke failed: [c(Client)]- 
> >runTransaction((Map)o(HashMap), (Properties)o(Properties)). Cause:  
> java.lang.ClassNotFoundException: Unresolved external reference:  
> java.lang.NoClassDefFoundError: com/cybersource/security/exception/ 
> SecuritySystemException. -- Unable to call the method, see the  
> README section "Java platform issues" for details. Responsible VM:  
> 1.5.0_06@http://apple.com/" at: #-6  
> php.java.bridge.JavaBridge.getUnresolvedExternalReferenceException 
> (JavaBridge.java:481) #-5 php.java.bridge.JavaBridge.Invoke 
> (JavaBridge.java:1084) #-4 php.java.bridge.Request.handleRequest 
> (Request.java:499) #0 [internal function]: Java->__call 
> ('runTransaction', Array) #1 /Library/WebServer/Documents/cj/simapi- 
> java-5.0.0/samples/nvp/AuthCaptureSample.php(114): JavaClass- 
> >runTransaction(Object(JavaArray), Object(JavaArray)) #2 {main}]
>
>
> Looking back at the docs for the Bridge, it says that if you get a  
> "NoClassDefFound" error it means there is another class that the  
> current class is trying to reference or call that is missing (so  
> the Client->runTransaction is missing something).
>
> Does this mean that the four java_require statements at the top of  
> my PHP script do not contain the missing class?  These are all the  
> JAR files that were provided as part of this API package from our  
> card processing company.
>
> If it means that there is some other JAR I need a java_require for,  
> how do I go about finding what JAR I should include???
>
> Thanks,
>
> Jon
> ---------------------------------------------------------------------- 
> ---
> Using Tomcat but need to do more? Need to support web services,  
> security?
> Get stuff done quickly with pre-integrated technology to make your  
> job easier
> Download IBM WebSphere Application Server v.1.0.1 based on Apache  
> Geronimo
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> php-java-bridge-users mailing list
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> https://lists.sourceforge.net/lists/listinfo/php-java-bridge-users

Re: [Php-java-bridge-users] NoClassDefFound error - how do I resolve?

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

Hi,

please excuse the delay.


> Looking back at the docs for the Bridge, it says
> that if you get a  
> "NoClassDefFound" error it means there is another
> class that the  
> current class is trying to reference or call that is
> missing (so the  
> Client->runTransaction is missing something).

Yes. There are proposals to add a SML style "module
system" to Java and/or to add a global repository for
Java classes (similar to the global assembly cache
used by .NET).

Until this is implemented I suggest to use the
JavaBridge.war as a back end and to store all
necessary java libraries to the WEB-INF/lib/ folder
within the JavaBridge.war file.

> Does this mean that the four java_require statements

The classes loaded by one java_require statement
cannot see the classes loaded by the other
java_require statements, see
http://php-java-bridge.sourceforge.net/documentation/PHP-API/html/java_8c.html#doc23.

Merging the 4 statements into one may solve the
problem.

 
> If it means that there is some other JAR I need a
> java_require for,  
> how do I go about finding what JAR I should
> include???

Good question. From the README
(http://php-java-bridge.sourceforge.net/README):

  Sun java platform issues
  ------------------------

  The sun java platform does not support java
"modules". This causes
  certain problems when running java programs. When
you compile a class
  foo which references a class bar and ship the class
foo without
  providing bar, the sun java platform will not
complain unless the user
  accidentally calls a method which references the
non-existing class. If
  this happens, a "NoClassDefFound" error is thrown.
This error may
  not(!) indicate which class is missing and it
certainly does not
  indicate which external library is missing. The
tests.php4 folder
  contains two tests, noClassDefFound.php and
noClassDefFound2.php which
  demonstrate this.

  To avoid this problem please document *exactly*
(including the
  version number) which external libraries (.jar
files) your software
  needs. If you have written software where certain
methods require an
  optional library, please document this in the method
header.

  If receive this error when using a Java library,
this may mean the
  following:

    * an old or different JDK than expected by the
library is used,
      for example GNU Java instead of SUN or IBM Java.

    * java_require("foo.jar");
java_require("bar.jar"); was used instead of
      java_require("foo.jar;bar.jar"); to load two
interconnected libraries.

    * the library is simply broken or it expects
certain parameters in
      its environment (applet parameter or system
property or property file).

    * the library may only work within a J2EE
environment from a
      certain vendor, for example the WebSphere
Application server or
      the Sun Java Application server.


Regards,
Jost Boekemeier



		
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