Re: [Php-java-bridge-users] (no subject)

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

Hello Jost,

I believe I am loading the custom libraries statically now.  I don't use a 
java_require or reload statement in my PHP code.  From the sounds of the 
email below, that is probably the best approach.  However, I think I just 
discovered an implication of doing that.

I made a minor change to one method in the U2 class.  Before the change it 
had 4 input parameters.  After the change it had 3 input parameters.  I 
moved it to the ext directory, but no matter what I tried I kept getting a 
method not found error.  I assumed it was because I was sending it 3 
parameters, but it still "thought" it had 4.  Finally I rebooted the web 
server and it worked fine.

This makes me suspect that static libraries load once on startup, and that 
simply moving the jar to the ext directory does not reload them.  So here 
is my question.  If that is the case, is there anyway short of a reboot to 
force the static libraries to reload?

Thanks.

Charles Shaffer
Senior Analyst
NTN-Bower Corporation




php...@li...
Sent by: php...@li...
08/26/2008 12:06 PM
Please respond to php-java-bridge-users

 
        To:     php...@li...
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        Subject:        Re: [Php-java-bridge-users] (no subject)


Hi,

well, the NoClassDefFound error means that an external reference is 
missing (an entity which has been available during the compilation of the 
class). 

The bridge has two different class loading mechanisms, one is the static 
loader, the other one is the dynamic loader which can load *some* java 
archives at run-time (via java_require(...) or java_autoload(...)).

I said "some" because dynamic class loading doesn't really work in Java, 
neither in Tomcat nor in J2EE; once the dynamically loaded classes are 
referenced by system libraries, you can't unload them anymore.


Regards,
Jost Boekemeier


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