php-java-bridge-users Mailing List for PHP/Java Bridge

Hi,


Please open a ticket, please use 

http://sourceforge.net/tracker/?func=add&group_id=117793&atid=679233

and attach the log of the bridge there.


We'll check this issue asap.


Regards,
Jost Boekemeier


--- php...@li...
schrieb:

> Hi,
> 
> you're right that new Java(...) cannot return NULL.
> 
> > How can I figure out, what's going wrong here and 
> > why???
> 
> You can look at the protocol level. Either set the
> log
> level to 4 or above or, if you use linux, type:
> 
> strace -s 1024 php yourPhpScript.php >error.log
> 
> You will see something like:
> 
> --> <C p=... v=...>...</C>
> <-- <O v=.../>
> 
> 
> Which PHP version do you use, btw?
> 
> 
> Regards,
> Jost Boekemeier
> 
> 
> 
> --- php...@li...
> schrieb:
> 
> > 
> > I am using php/java bridge 3.1.8. I am having the
> > interesting case that in
> > my PHP code I do a
> > 
> >       $classpath='...';
> >       java_require($classpath);
> >       try {
> >             $var=new Java('class.name.here');  //
> > the constructor has no
> > paramete
> >       } catch(JavaException $exeption) {
> >             throw new Exception('Java-exception
> > creating object of class
> > "class.name.here": '.$exeption);
> >       }
> >       if ($var) {
> >             // using the object...
> >       } else {
> >             echo 'got a null object... :-( ';
> >       }
> > 
> > Initially I was getting misc.
> > ClassNotFound-Exceptions until I got my
> > classpath right. The classpath seems to be OK now,
> > but now I am NOT getting
> > any JavaException but I get back a null-object,
> i.e.
> > I am falling into the
> > echo ... statement in the above snippet.
> > 
> > How can I figure out, what's going wrong here and
> > why???
> > 
> > Michael
> > 
> > 
> >
>
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> > php...@li...
> >
>
https://lists.sourceforge.net/lists/listinfo/php-java-bridge-users
> > 
> 
> 
> 
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>
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> _______________________________________________
> php-java-bridge-users mailing list
> php...@li...
>
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> 



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Hi,

you're right that new Java(...) cannot return NULL.

> How can I figure out, what's going wrong here and 
> why???

You can look at the protocol level. Either set the log
level to 4 or above or, if you use linux, type:

strace -s 1024 php yourPhpScript.php >error.log

You will see something like:

--> <C p=... v=...>...</C>
<-- <O v=.../>


Which PHP version do you use, btw?


Regards,
Jost Boekemeier



--- php...@li...
schrieb:

> 
> I am using php/java bridge 3.1.8. I am having the
> interesting case that in
> my PHP code I do a
> 
>       $classpath='...';
>       java_require($classpath);
>       try {
>             $var=new Java('class.name.here');  //
> the constructor has no
> paramete
>       } catch(JavaException $exeption) {
>             throw new Exception('Java-exception
> creating object of class
> "class.name.here": '.$exeption);
>       }
>       if ($var) {
>             // using the object...
>       } else {
>             echo 'got a null object... :-( ';
>       }
> 
> Initially I was getting misc.
> ClassNotFound-Exceptions until I got my
> classpath right. The classpath seems to be OK now,
> but now I am NOT getting
> any JavaException but I get back a null-object, i.e.
> I am falling into the
> echo ... statement in the above snippet.
> 
> How can I figure out, what's going wrong here and
> why???
> 
> Michael
> 
> 
>
-------------------------------------------------------------------------
> This SF.net email is sponsored by DB2 Express
> Download DB2 Express C - the FREE version of DB2
> express and take
> control of your XML. No limits. Just data. Click to
> get it now.
> http://sourceforge.net/powerbar/db2/
> _______________________________________________
> php-java-bridge-users mailing list
> php...@li...
>
https://lists.sourceforge.net/lists/listinfo/php-java-bridge-users
> 



      Heute schon einen Blick in die Zukunft von E-Mails wagen? Versuchen Sie´s mit dem neuen Yahoo! Mail. www.yahoo.de/mail

Hi,

> ---------------------
> PHP 5.0.4 too old.
> For PHP versions < 5.1.4 install the java.so or
> php_java.dll from the
> php-java-bridge-legacy download.
> Or set the path to the PHP executable, see php_exec
> in the
> WEB-INF/web.xml
> ---------------------

> What I don't get is that Apache *is* available, so
> why is the
> documentation steering me towards this
> implementation?  Please explain.

Depending on whether you use the Apache front-end or
the J2EE back-end directly, a) you need to install the
java.so/php_java.dll or b) set the path to the php
executable, respectively.

That is: 

http://localhost:8080/JavaBridge/test.php
invokes the php_exec from the web.xml, 

http://localhost:80/JavaBridge/test.php invokes Apache
or IIS and triggers the php.so or php.dll which in
turn reads the php.ini which in turn loads the java.so
or php_java.dll.


> I do not understand how PHP deals with Java's
> instances.

Well, as someone else noted, your only mistake was
that you thought that getInstance evaluates for its
side effects. But this isn't the case. It is a
function.


> I installed this: php-java-bridge-4.0.7_j2ee and

Okay.


> though the environment
> is a virtual dedicated server, my rights are sadly
> limited.

Okay.


> I've got tomcat running on autostart and have the
> bridge in its webapps
> directory.  

Okay. This means that even if the machine boots,
tomcat  (and the bridge) will re-start automatically.
Good.


> If tomcat is supplying the VM, why am I getting
> stack heap issues in

Your ISP doesn't want you to start java from the
console. This is usually a GRSecurity or SEL issue.


> trying to start a VM when merely calling java -jar
> JavaBridge.jar --help
> ?
> 
> This has *got* to work, I just need to figure out
> how...

Not really. You can restrict Java so that it core
dumps on startup. Please take a look at the SEL files
distributed with the php-java-bridge source download.
Sun JDK 1.5 for example creates executable files in
the temp dir with global permissions. This is very
insecure, imho. If you switch off these permissions
via a SEL rule, Java will crash in the garbage
collector or in the JIT thread.

It all depends on the SEL context. Presumably tomcat
runs in the initd_t context, not in unconfined_t. But
that's guesswork.


Regards,
Jost Boekemeier


      Heute schon einen Blick in die Zukunft von E-Mails wagen? Versuchen Sie´s mit dem neuen Yahoo! Mail. www.yahoo.de/mail

I am using php/java bridge 3.1.8. I am having the interesting case that in
my PHP code I do a

      $classpath='...';
      java_require($classpath);
      try {
            $var=new Java('class.name.here');  // the constructor has no
paramete
      } catch(JavaException $exeption) {
            throw new Exception('Java-exception creating object of class
"class.name.here": '.$exeption);
      }
      if ($var) {
            // using the object...
      } else {
            echo 'got a null object... :-( ';
      }

Initially I was getting misc. ClassNotFound-Exceptions until I got my
classpath right. The classpath seems to be OK now, but now I am NOT getting
any JavaException but I get back a null-object, i.e. I am falling into the
echo ... statement in the above snippet.

How can I figure out, what's going wrong here and why???

Michael