Oracle Bi Publisher multiple errors

Hi everyone

I've been checking log files of Oracle Bi Publisher that I installed in a Solaris SPARC machine, and in this files I saw multiple warning and errors entries like this

1. java.io.StreamCorruptedException: invalid stream header: 951D0B94
2. ava.io.EOFException
3. java.io.StreamCorruptedException: invalid stream header: 73657276
4. java.lang.NullPointerException
5. java.io.IOException: Parameter name: loc Can not establish database connection(conexion)
6. Render LAYOUT_GRID_CELL failed unexpectedly at the child DATA_FIELD!
7. java.net.SocketException: Socket closed
8. javax.servlet.ServletException: java.net.SocketException: Socket closed
9. UIUTils.renderError: strict servlet API: cannot call getWriter() after getOutputStream()
10. java.io.StreamCorruptedException: invalid stream header: 65742E63