Re: [Php-java-bridge-users] Dynamic ClassLoader problem

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

Hi,

just a maybe-silly question concerning setting the java.classpath in the=20
php.ini :
    Why can not I specify a directory instead of the jars ?

I ask because I have 12 jars to set in the cp, so this is bad to=20
maintains their hard-coded names in the php.ini

ex :
$> ls /home/christophe/workspace/www2/libraries/java/lib/
commons-beanutils-1.5.jar    commons-logging-api-1.0.2.jar =20
jcommon-1.0.0.jar     xalan.jar
commons-collections-2.1.jar  CVS                           =20
jfreechart-1.0.1.jar
commons-digester-1.7.jar     itext-1.3.1.jar                jxl.jar
commons-logging-1.0.2.jar    jasperreports-1.2.0.jar        poi-2.0.jar

$> cat /etc/php5/conf.d/java.ini
[java]
extension=3Djava.so
java.java=3D/usr/java/jdk/bin/java
java.java_home=3D/usr/java/jdk
java.log_level=3D4
java.log_file=3D/var/log/php-java-bridge.log
java.classpath=3D/usr/lib/php5/extensions/JavaBridge.jar:/home/christophe=
/workspace/www2/libraries/java/lib

report.php
*Fatal error*: Uncaught [class java.lang.Exception: java.lang.Exception:=20
CreateInstance failed: new Report. Cause:=20
java.lang.NoClassDefFoundError:=20
net/sf/jasperreports/engine/export/JRPdfExporter] thrown in=20
*/home/christophe/workspace/www2/report.php* on line *XXX

*with the class being defined in*=20
*/home/christophe/workspace/www2/libraries/java/lib/jasperreports-1.2.0.j=
ar

regards,
chris*
*
php...@li... wrote:
> Hi,
>
>  =20
>> Just to say I digg into this problem all day and
>> still find no solution.
>>    =20
>
> Sorry for that. I assumed that this wasn't an
> important issue, you've said that it works if you move
> the jars to jre/lib/ext.
>
>
>  =20
>> What I do not understand is why a thread does not
>> inherit the classpath=20
>> from the creating thread ?
>>    =20
>
> JSP is a good example. The container doesn't want to
> make the jsp classloader available to the webapp, so
> it sets the thread context classloader to the parent
> of the current classloader.
>
> I don't know if and how your reporting engine handles
> this, but in general applications may choose to ignore
> our dynamic loader and load classes or create dynamic
> proxies via the system classloader. If this happens,
> the loaded classes or defined proxies cannot access
> classes loaded via the dynamic loader.
>
> So I think the best workaround is to install your
> libraries in $JAVA_HOME/jre/lib/ext or to hard-code
> the java.classpath in the php.ini file, for example:
>
> java.classpath=3D/path/to/JavaBridge.jar:/path/to/lib1.jar:...
>
> I have created a ticket for this problem, please see
> PR1449780 for details
> (http://sourceforge.net/tracker/index.php?func=3Ddetail&aid=3D1449780&g=
roup_id=3D117793&atid=3D679233)
>
>
> Thank you very much for this bug report!
>
>
> Regards,
> Jost Boekemeier
>
>
>
>
>
>
>
>
> =09
>
> =09
> 	=09
> ___________________________________________________________=20
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>
>  =20

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