j2ee forms log error

We are using EBS version 12.1.3

I am still learning this application. When I look at the j2ee forms log, I see the following message. What does that mean? Users did not complain about anything with the system. I am just trying to learn the messages in the log file. Please advise. Thank you very much.

14/06/19 17:14:54.833 formsweb: Servlet error

java.io.IOException: Broken pipe

        at sun.nio.ch.FileDispatcher.write0(Native Method)

        at sun.nio.ch.SocketDispatcher.write(SocketDispatcher.java:29)

        at sun.nio.ch.IOUtil.writeFromNativeBuffer(IOUtil.java:69)

        at sun.nio.ch.IOUtil.write(IOUtil.java:40)

        at sun.nio.ch.SocketChannelImpl.write(SocketChannelImpl.java:336)