I looked a little bit at the code

php_java.jar tries to load the external library 
libphp_java.so in reflect.java with:
 System.loadLibrary(bundle.getString("library"));

library is defined in Makefile.frag ) as
    @echo library=php_java > $(srcdir)/net/php/reflect.properties

but we can't change php_java to just java, because then we get conflicts with the main libjava.so. furthermore System.loadLibrary prepends "lib" before the library name, and searches for this name (libphp_java.so in this example).
I didn't find a solution to tell java to look for just php_java.so ...

Does anyone know a solution to this problem?

chregu

Did you setup the ini settings that tell the java.so where to look for javalibs & classes?

yep, the java-extension works on my system, but only when i make this symlink.

chregu

Please try using this CVS snapshot:

  http://snaps.php.net/php4-STABLE-latest.tar.gz
 
For Windows:
 
  http://snaps.php.net/win32/php4-win32-STABLE-latest.zip

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i did exprience similar problem , going by what was said here  I understood what the problem was to fix it  , i copyed php_java.dll to 
"c:\jdk\jre\bin" folder and  it was fixed , 
i am running php under winXP , IIS 5 

regards
Aamir

That almost worked for me but apache 2.0.54 on windows xp was crashing. (php 4.4)

Solution:

make sure these lines are in your php.ini.  The most important one is having java.library.path set to your extensions directory

[Java]
java.class.path = "C:\PHP4\extensions\php_java.jar"
java.home = "C:\Program Files\Java\jre1.5.0_06"
java.library = "C:\Program Files\Java\jre1.5.0_06\bin\client\jvm.dll" 
java.library.path = "C:\PHP4\extensions\"

sss