php-java-bridge-users Mailing List for PHP/Java Bridge (Page 3)

Hi again,

for version 4.1.1 it may make sense to throw an
IllegalAccessException when users try to access
internal classes directly. They should call the
appropriate factory procedure to obtain an instance of
the class.

> does it contain a newInstance() method. I have

It doesn't contain a newInstance(String) procedure.


Regards,
Jost Boekemeier


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Hi,

>
javax.xml.bind.ContextFinder.newInstance(ContextFinder.java:149)
> 
> I guess the above class uses a constructor which
> requires a different logging API than provided.
> 
> Do you have the source code of the above class?

according to jad :) the above class it not public nor
does it contain a newInstance() method. I have checked
the j2ee.jar which comes with the latest sun j2ee
server download.

Regards,
Jost Boekemeier


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Hi Jonathan,

> [[o:Exception]:"java.lang.Exception: Invoke failed:
>
[[c:JAXBContext]]->newInstance((o:String)[o:String]).
> Cause:
> java.lang.ClassCastException:
> com.sun.xml.bind.v2.runtime.JAXBContextImpl

sounds like a problem internal to JAXBContextImpl.

> Responsible VM:
> 1.5.0_08@http://java.sun.com/" at:
> #-14
>
javax.xml.bind.ContextFinder.newInstance(ContextFinder.java:149)

I guess the above class uses a constructor which
requires a different logging API than provided.

Do you have the source code of the above class?


Regards,
Jost Boekemeier



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I tried running my website with the standalone, command-line deployment
of the Java Bridge...

 $ java -jar JavaBridge.jar SERVLET:8080

...which seemed to work well.  That is, until a random line of code,
which normally executes just fine, started throwing a ClassCastException
each time it was encountered:

  self::$jaxbContext =3D new JavaClass('javax.xml.bind.JAXBContext');
  self::$talkContext =3D
self::$jaxbContext->newInstance('org.indivo.xml.talk');

Once the CCE appeared, my application could not recover until I
restarted the Bridge and Apache.

I'd never had a problem with those lines with 3.0.7 using the PHP
extension, and I don't see the problem at all while running 4.0.7 from
Tomcat.  Does such a scenario ring any bells?  (Exception text pasted
below.)

Thanks for your help,
Jonathan



[[o:Exception]:"java.lang.Exception: Invoke failed:
[[c:JAXBContext]]->newInstance((o:String)[o:String]). Cause:
java.lang.ClassCastException:
com.sun.xml.bind.v2.runtime.JAXBContextImpl Responsible VM:
1.5.0_08@http://java.sun.com/" at:
#-14 javax.xml.bind.ContextFinder.newInstance(ContextFinder.java:149)
#-13 javax.xml.bind.ContextFinder.find(ContextFinder.java:285)
#-12 javax.xml.bind.JAXBContext.newInstance(JAXBContext.java:372)
#0 http://localhost:8080/JavaBridge/java/Java.inc(151):
java_ThrowExceptionProxyFactory->getProxy(2, true)
#1 http://localhost:8080/JavaBridge/java/Java.inc(304):
java_Arg->getResult(true)
#2 http://localhost:8080/JavaBridge/java/Java.inc(310):
java_Client->getWrappedResult(true)
#3 http://localhost:8080/JavaBridge/java/Java.inc(489):
java_Client->getResult()
#4 http://localhost:8080/JavaBridge/java/Java.inc(735):
java_Client->invokeMethod(1, 'newInstance', Array)
#5 http://localhost:8080/JavaBridge/java/Java.inc(853):
java_JavaProxy->__call('newInstance', Array)
#6 [inte in http://localhost:8080/JavaBridge/java/Java.inc on line 129

Hi Sharad,

> Java JavaBridge /tmp/.php_java 5
> /var/log/javalog/php-java-bridge

what is "Java" and what does "JavaBridge" do?

I assume Java is some kind of shell script and
JavaBridge is some binary which somehow calls
modules/java (the gcj-compiled backend binary).

Do you see any relevant messages in the log file
(/var/log/javalog/php-java-bridge)?


> I am using gcj java 3.2.3. on linux OS.

Which linux operating system do you use?


> Hope Now you can suggest me what the problem behind
> this.

No idea. gcj 3.2.3 is quite old and doesn't support
most of the JDK1.4 features which the JavaBridge
requires.

However, if the gcj-compiled binary crashes (due to
missing feature probably), it should write a stack
trace or at least a core dump. In any case it should
not silently terminate.

Isn't it possible to use a recent version of "GNU
Java"? Or better: Use a real Java VM and the pure PHP
implementation of the PHP/Java Bridge.

Since the Sun JDK is now free software, there is no
reason to use "GNU Java" anymore.


Regards,
Jost Boekemeier



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Hello Jost,
I am starting server through this.

Java JavaBridge /tmp/.php_java 5 /var/log/javalog/php-java-bridge

I am using gcj java 3.2.3. on linux OS.

Hope Now you can suggest me what the problem behind this.

Although I am highly obilized of your suggestion which you given to me
right now.


> Hi Sharad,
>
>> start php-java server ,its start but after 1 -2
>
> how do you start java? Do you start a real servlet
> engine or do you start the built-in servlet engine via
> java -jar JavaBridge.jar SERVLET_LOCAL:8080 ?
>
>
>> minute its stop.WHy it
>
> Sounds like a java problem. Which java version do you
> use on which operating system?
>
>> is happening .Can any body suggest to me what I
>> should do .
>
> You could set the log level to 6 and check the log
> file. But unless you call
>
>   java("java.lang.System")->exit(0); [1]
>
> the Java VM should not simply terminate.
>
>
> Regards,
> Jost Boekemeier
>
> [1] This behaviour can be switched off via a java
> policy file, of course.
>
>
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-- 
Thanks and Regards
Sharad Singh
Sr. Project Associate
EE, IIT Kanpur
Mob:+91- 9450 328 117

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Hi Sharad,

> start php-java server ,its start but after 1 -2

how do you start java? Do you start a real servlet
engine or do you start the built-in servlet engine via
java -jar JavaBridge.jar SERVLET_LOCAL:8080 ?


> minute its stop.WHy it

Sounds like a java problem. Which java version do you
use on which operating system?

> is happening .Can any body suggest to me what I
> should do .

You could set the log level to 6 and check the log
file. But unless you call 

  java("java.lang.System")->exit(0); [1]

the Java VM should not simply terminate. 


Regards,
Jost Boekemeier

[1] This behaviour can be switched off via a java
policy file, of course.


      __________________________________  Yahoo! Clever: Stellen Sie Fragen und finden Sie Antworten. Teilen Sie Ihr Wissen. www.yahoo.de/clever

Hello to all

   We have installed php java bridge, java is accessible in php.but when I
start php-java server ,its start but after 1 -2 minute its stop.WHy it
is happening .Can any body suggest to me what I should do .



-- 
Thanks and Regards
Sharad Singh
Sr. Project Associate
EE, IIT Kanpur
Mob:+91- 9450 328 117
website: http://www.brihaspatisolutions.co.in
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Hi,

> > Java->__call('getIterator', Array)
> 
> this sounds like a bug in Java.inc. The bridge
> shouln't pass getIterator to the back end.

the problem appears to be a workaround / debug code
for an earlier version of the zend engine.

Please edit your Java.inc and remove the lines marked
with a -

class JavaObject extends Java {
  function Java() {
	$delegate = $this->__delegate =
java_create(func_get_args(), true);
	$this->__java = $delegate->__java;
	$this->__client = $delegate->__client;
  }

-  function getIterator() {
-	$args = func_get_args(); return
$this->__call("getIterator", $args);
-  }
-  function offsetExists($idx) {
-	$args = func_get_args(); return
$this->__call("offsetExists", $args);
-  }
-  function offsetGet($idx) {
-	$args = func_get_args(); return
$this->__call("offsetGet", $args);
-  }
-  function offsetSet($idx, $val) {
-	$args = func_get_args(); return
$this->__call("offsetSet", $args);
-  }
-  function offsetUnset($idx) {
-	$args = func_get_args(); return
$this->__call("offsetUnset", $args);
-  }
}  
class java_class extends JavaObject {


I have added a JavaBridge.jar at the end of your
ticket which containes an updated Java.inc in the
META-INF/ folder. This jar file also recognizes the
system property

  php.java.bridge.ext_java_compatibility

When the option is set to true, the bridge destroys
the object identity for String, Long, Integer, Float,
Double, Collection, Boolean. You can set the option in
php/java/bridge/global.properties or as a VM
parameter, for example:

export
JAVA_OPTS="-Dphp.java.bridge.ext_java_compatibility=true"

export JAVA_HOME=/opt/jdk1.6
/opt/apache-tomcat6/bin/catalina.sh start

or 

java -Dphp.java.bridge.ext_java_compatility=true -jar
JavaBridge.jar SERVLET_LOCAL:8080


Regards,
Jost Boekemeier



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