I'm trying to install the resin package from www.caucho.com on Centos 4.2/x86_64 with Sun jdk-1_5_0_06-linux-amd64. Everything appears to work during the install but I get:

Socket JNI library is not available. Resin will still run but performance will be slower. To compile the Socket JNI library on Unix, use ./configure; make; make install.

In the logs when it starts up. Did I miss something?