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

Bingo! Thank you so much!=20
The second part of you mail - disabling the php_java.dll - did the
trick!
I had enabled that before fully understanding, how this PHP/JavaBridge
works (or actually I think, for  an earlier version of the bridge
(3.1.x?) it was even necessary) and had never thought about it any
more, let alone realized that this is not only not required any more
but can cause such adverse effects...

This problem has costed me two days of desperate searching and I
simply couldn't understand what was going on here. I definitely owe
you a beer! Or several, actually!=20

Thanks again,
Michael


> -----Original Message-----
> From: php...@li...=20
> [mailto:php...@li...]=20
> On Behalf Of php...@li...
> Sent: Freitag, 7. September 2007 23:01
> To: php...@li...
> Subject: Re: [Php-java-bridge-users] Strange "Cannot=20
> redeclare" errormessage...
>=20
>=20
> I believe I ran into the same error at one point.  If I=20
> remember right, the way I fixed it was by removing the war=20
> file from Tomcat completely, deleting the folder named=20
> JavaBridge in the Tomcat folder (if this fails you'll need to=20
> restart first), then adding it back to the folder (thus=20
> deploying it and recreating the JavaBridge=20
> folder--effectively reinstalling the bridge)
>=20
> Also, make sure that PHP does NOT load the php_java=20
> extension.  It doesn't need it and it may be where the=20
> function is already being declared.
>=20
> Hope this helps.
>=20
> --Nathan Shaskin
> Compliance Publishing
>=20
>=20
> php...@li... wrote: Help! I=20
> ran into a bizarre problem that I simply don't understand.
>=20
> As soon as I include the PHP/Java bridge in my code (i.e. as=20
> soon as I include the following statement in my PHP file):
> ------------------------------
> ... require_once('http://localhost:8080/JavaBridge/java/Java.inc');=20
> ...
> ------------------------------
>=20
> I am getting the following PHP error:=20
> ------------------------------
> Fatal error: Cannot redeclare java_last_exception_get() in=20
> http://localhost:8080/JavaBridge/java/Java.inc on line 1431
> ------------------------------
>=20
> Not only is the include done using "require_ONCE()"=20
> (capitalization here for emphasis only), but the Java.inc=20
> also is internally additionally guarded by:
> ------------------------------
>  =20
> if(!function_exists("java_get_base")) {
>   ...
>   function java_get_base() {
>     ...
>   }
>   ... lost of stuff among them also:
>   function java_last_exception_get() {
>     ...
>   }
> }
> ?>
> ------------------------------
>=20
> So, IMHO it should NEVER EVER be possible that anything=20
> contained in this file is ever redeclared. And why is the=20
> error only at the function "java_last_exception_get(...)"=20
> which is somewhere after the middle of the file, while there=20
> are lots of other functions declared before it, which - if=20
> for some reason the file would indeed be re-read - should=20
> already cause errors much earlier...
>=20
> I simply don't understand what's going in here. Anyone who=20
> had similar encounters and/or can shed some light onto this?
>=20
> I am using this XAMPP v1.6.3a (a ready-packed combination of=20
> Apache v2.2.4 & PHP v5.2.3 & Zend Optimizer  v3.3.0 & MySQL=20
> v5.0.45 - see
> http://www.apachefriends.org/en/xampp-windows.html) plus the=20
> Tomcat v6.10.13 -addon (on which I run the JavaBridge.war file).
>=20
>  on WinXP Pro.
>=20
> Michael
>=20
>=20
> --------------------------------------------------------------
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_______________________________________________
> php-java-bridge-users mailing list=20
> php...@li...
> https://lists.sourceforge.net/lists/listinfo/php-java-bridge-users
>=20
>=20
>       =20
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> -----------
> This SF.net email is sponsored by: Splunk Inc.
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> Now Search log events and configuration files using AJAX and=20
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> http://get.splunk.com/
_______________________________________________
> php-java-bridge-users mailing list=20
> php...@li...
> https://lists.sourceforge.net/lists/listinfo/php-java-bridge-users
>=20

I believe I ran into the same error at one point.  If I remember right, the way I fixed it was by removing the war file from Tomcat completely, deleting the folder named JavaBridge in the Tomcat folder (if this fails you'll need to restart first), then adding it back to the folder (thus deploying it and recreating the JavaBridge folder--effectively reinstalling the bridge)

Also, make sure that PHP does NOT load the php_java extension.  It doesn't need it and it may be where the function is already being declared.

Hope this helps.

--Nathan Shaskin
Compliance Publishing


php...@li... wrote: Help! I ran into a bizarre problem that I simply don't understand.

As soon as I include the PHP/Java bridge in my code (i.e. as soon as I
include the following statement in my PHP file):
------------------------------
...
require_once('http://localhost:8080/JavaBridge/java/Java.inc'); 
...
------------------------------

I am getting the following PHP error: 
------------------------------
Fatal error: Cannot redeclare java_last_exception_get() in
http://localhost:8080/JavaBridge/java/Java.inc on line 1431
------------------------------

Not only is the include done using "require_ONCE()" (capitalization
here for emphasis only), but the Java.inc also is internally
additionally guarded by:
------------------------------
  
if(!function_exists("java_get_base")) {
  ...
  function java_get_base() {
    ...
  }
  ... lost of stuff among them also:
  function java_last_exception_get() {
    ...
  }
}
?>
------------------------------

So, IMHO it should NEVER EVER be possible that anything contained in
this file is ever redeclared.
And why is the error only at the function
"java_last_exception_get(...)" which is somewhere after the middle of
the file, while there are lots of other functions declared before it,
which - if for some reason the file would indeed be re-read - should
already cause errors much earlier...

I simply don't understand what's going in here. Anyone who had similar
encounters and/or can shed some light onto this?

I am using this XAMPP v1.6.3a (a ready-packed combination of Apache
v2.2.4 & PHP v5.2.3 & Zend Optimizer  v3.3.0 & MySQL v5.0.45 - see
http://www.apachefriends.org/en/xampp-windows.html) plus the Tomcat
v6.10.13 -addon (on which I run the JavaBridge.war file).

 on WinXP Pro.

Michael


-------------------------------------------------------------------------
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Still grepping through log files to find problems?  Stop.
Now Search log events and configuration files using AJAX and a browser.
Download your FREE copy of Splunk now >>  http://get.splunk.com/
_______________________________________________
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php...@li...
https://lists.sourceforge.net/lists/listinfo/php-java-bridge-users


       
---------------------------------
Take the Internet to Go: Yahoo!Go puts the Internet in your pocket: mail, news, photos & more. 

Help! I ran into a bizarre problem that I simply don't understand.

As soon as I include the PHP/Java bridge in my code (i.e. as soon as I
include the following statement in my PHP file):
------------------------------
...
require_once('http://localhost:8080/JavaBridge/java/Java.inc');=20
...
------------------------------

I am getting the following PHP error:=20
------------------------------
Fatal error: Cannot redeclare java_last_exception_get() in
http://localhost:8080/JavaBridge/java/Java.inc on line 1431
------------------------------

Not only is the include done using "require_ONCE()" (capitalization
here for emphasis only), but the Java.inc also is internally
additionally guarded by:
------------------------------
<?php
 =20
if(!function_exists("java_get_base")) {
  ...
  function java_get_base() {
    ...
  }
  ... lost of stuff among them also:
  function java_last_exception_get() {
    ...
  }
}
?>
------------------------------

So, IMHO it should NEVER EVER be possible that anything contained in
this file is ever redeclared.
And why is the error only at the function
"java_last_exception_get(...)" which is somewhere after the middle of
the file, while there are lots of other functions declared before it,
which - if for some reason the file would indeed be re-read - should
already cause errors much earlier...

I simply don't understand what's going in here. Anyone who had similar
encounters and/or can shed some light onto this?

I am using this XAMPP v1.6.3a (a ready-packed combination of Apache
v2.2.4 & PHP v5.2.3 & Zend Optimizer  v3.3.0 & MySQL v5.0.45 - see
http://www.apachefriends.org/en/xampp-windows.html) plus the Tomcat
v6.10.13 -addon (on which I run the JavaBridge.war file).

 on WinXP Pro.

Michael

Hi,
 
> I don't know how to reproduce, but we have a nightly cron job that runs a
> cli php script, and after a few weeks there are usually a couple processes
> hanging around.  

do these processes still exist? Can you do a "ps auxwf" please? 


> I'll make a note to add a ticket when I see that next.

I've just looked at the code. The JVM is started in the MINIT procedure and terminated (via kill
SIGTERM, kill SIGTETM, kill -9 ...) in the MSHUTDOWN procedure. So if the PHP executable hangs,
this means that the PHP MSHUTDOWN procedure hasn't been called (which used to happen with recent
PHP binaries, when called with a zero-length PHP script); it means that there is a bug in your PHP
CLI binary. 

Please either do not use this PHP CLI binary or start Java as an external process.


> > However, the PHP/Java Bridge shouldn't be used that way. Please start Java
> > as an external process.
> I'm not sure how to do this (or how I'm not doing it).  


Please see the README or INSTALL.* documents from the binary download. Or this link
http://www.ibm.com/developerworks/aix/library/au-javaphpaix5/ for a detailed description how to
install the bridge.


> So, the scripts that are hanging around do not actually invoke anything Java
> in the PHP code.

As I've said. If you ask PHP to start a JVM attached to it and the JVM does not terminate
(probably due to a bug in the PHP), PHP will hang. Please see the documentation that comes with
the PHP/Java Bridge download to see how to change it.


Regards,
Jost Boekemeier



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