linux-sun-JDK13 stopped working with netscape 7.1

[E. J. Cerejo]

Hello I had linux-sun-JDK13 working perfectly with netscape 7.02 and now 
I installed netscape 7.1 using the port and the java plugin doesn't work 
any more, it gives me this error:

LoadPlugin: failed to initialize shared library 
/usr/local/linux-sun-jdk1.3.1/jre/plugin/i386/ns600/libjavaplugin_oji.so 
[/usr/local/linux-sun-jdk1.3.1/jre/plugin/i386/ns600/libjavaplugin_oji.so: 
undefined symbol: __vt_17nsGetServiceByCID]
linux: 'ipc' typ=258 not implemented

Any ideas?