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

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

Hi,

thanks for the detailed answer, I better understand my problem now.

Moving my jars into jre/lib/ext is not an option because you must be=20
root to do that (and I am not).
Hardcoding the java.classpath in the php.ini is maybe possible thanks to=20
a .htaccess so this is ok, I will watch for this today.

Concerning the isssue, here is a snippet from my report engine code in=20
order to provide more details:
this is the call to the compiler :

JRClassLoader.loadClassForName("org.eclipse.jdt.internal.compiler.Compile=
r");

Here is the JRClassLoader called method :

**
	*public* static *Class* loadClassForName(*String* className) *throws* *C=
lassNotFoundException*
	{
		*Class* clazz =3D *null*;

		*ClassLoader* classLoader =3D *Thread*.currentThread().getContextClassL=
oader();
		*if* (classLoader !=3D *null*)
		{
			*try*
			{
				clazz =3D *Class*.forName(className, *true*, classLoader);
			}
			*catch* (*ClassNotFoundException* e)
			{
				///if (log.isWarnEnabled())/
				///	log.warn("Failure using Thread.currentThread().getContextClassLoa=
der() in JRClassLoader class. Using JRClassLoader.class.getClassLoader() =
instead.");/
			}
		}

		*if* (clazz =3D=3D *null*)
		{
			classLoader =3D JRClassLoader.class.getClassLoader();
			*if* (classLoader =3D=3D *null*)
			{
				clazz =3D *Class*.forName(className);
			}
			*else*
			{
				clazz =3D *Class*.forName(className, *true*, classLoader);
			}
		}

		*return* clazz;
	}

Is the "*Thread*.currentThread().getContextClassLoader()" not the good me=
thod to obtain PHP-Java-bridge class loader ?

Again, thanks for the answer,

best 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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