PHP+Java: PHP hangs/crash when running a script using java

Hello,
I've compiled php with java on freebsd and now when I'm running an example script I've found on php.net:

<?php
// get instance of Java class java.lang.System in PHP
$system = new Java('java.lang.System');
..osv...
?>

When I run this thru apache the webserver doesn't respond (page cannot be displayed), when I run the script thru a shell php hangs forever and if a do CTRL-C I get the following error message:

======================================
bash-2.05b# php /var/www/html/java2.php
^C
An unexpected exception has been detected in native code outside the VM.
Unexpected Signal : 11 occurred at PC=0x28FF0859
Function=_sem_post+0x19
Library=/usr/lib/libc_r.so.4


Dynamic libraries:
0x8048000 php
0x28361000 /usr/lib/libcrypt.so.2
0x2837a000 /usr/local/lib/libzzip-0.so.10
0x28380000 /usr/local/lib/libz.so
0x28391000 /usr/local/lib/libsybdb.so.3
0x283c1000 /usr/local/lib/libmhash.so.2
0x283da000 /usr/local/lib/libmcrypt.so.8
0x2840c000 /usr/local/lib/libltdl.so.4
0x28413000 /usr/local/lib/libintl.so.5
0x2841c000 /usr/local/lib/libt1.so.5
0x28468000 /usr/local/lib/libfreetype.so.9
0x284b8000 /usr/local/lib/libpng.so.5
0x284db000 /usr/local/lib/libjpeg.so.9
0x284f9000 /usr/local/lib/libexslt.so.7
0x28507000 /usr/local/lib/libxsltbreakpoint.so.1
0x28509000 /usr/local/lib/libxml2.so.5
0x285f1000 /usr/local/lib/libxslt.so.1
0x28625000 /usr/local/lib/libssl.so.3
0x28653000 /usr/local/lib/libcrypto.so.3
0x28740000 /usr/lib/libm.so.2
0x2875b000 /usr/local/lib/libcurl.so.2
0x28785000 /usr/local/lib/libiconv.so.3
0x28873000 /usr/lib/libc.so.4
0x2890c000 /usr/lib/libz.so.2
0x28919000 /usr/lib/libssl.so.3
0x28948000 /usr/lib/libcrypto.so.3
0x28a40000 /usr/local/lib/php/extensions/no-debug-non-zts-20020429/libphp_java.so
0x28a44000 /usr/local/jdk1.4.1/jre/lib/i386/client/libjvm.so
0x28fd9000 /usr/lib/libc_r.so.4
0x2908f000 /usr/lib/libstdc++.so.3
0x290d4000 /usr/local/jdk1.4.1/jre/lib/i386/native_threads/libhpi.so
0x290de000 /usr/local/jdk1.4.1/jre/lib/i386/libverify.so
0x290f9000 /usr/local/jdk1.4.1/jre/lib/i386/libjava.so
0x2911a000 /usr/local/jdk1.4.1/jre/lib/i386/libzip.so
0x28344000 /usr/libexec/ld-elf.so.1

Local Time = Wed Sep 22 12:56:33 2004
Elapsed Time = 293
#
# The exception above was detected in native code outside the VM
#
# Java VM: Java HotSpot(TM) Client VM (1.4.1-p3-root_09_sep_2004_11_59 mixed mode)
#
# An error report file has been saved as hs_err_pid11338.log.
# Please refer to the file for further information.
#
Abort trap (core dumped)
bash-2.05b#
======================================

I had a problem before with some libraries that couldn't be found but when I added the path to java in $LD_LIBRARY_PATH I solved that problem...

But I have no idea what to do now.

I've checked phpinfo() and the java-section is there.

When I run the script thru apache, this shows up in the errorlog:
[Thu Sep 23 08:15:44 2004] [notice] child pid 15178 exit signal Segmentation fault (11)
[Thu Sep 23 08:15:44 2004] [notice] child pid 15175 exit signal Segmentation fault (11)

I'm using FreeBSD 4.7, PHP 4.3.8, Apache/1.3.31, Java jdk1.4.1