java.lang.NullPointerException intermittently

[J Ford]

Hello.  I have recently upgraded from BBB 0.7 to 0.80 on Ubuntu 10.04.  When running the demo files (specifically creating or joining a meeting), I get this error:

java.lang.NullPointerException
	at org.apache.jsp.demo1_jsp.getJoinURL(demo1_jsp.java:200)
	at org.apache.jsp.demo1_jsp._jspService(demo1_jsp.java:945)
	at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
	at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:377)
	at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859)
	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
	at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
	at java.lang.Thread.run(Thread.java:679)

The odd thing is, this only happens the first time.  If I reload the error page, the meeting proceeds as normal, and runs as normal.  If I exit the meeting and try again, the action proceeds with no error.  If I wait 10 or 15 minutes (I'm not sure what the exact interval is) I get the 500 error again.  I admit I may be doing something dumb, but I cannot see what.  The searches I've done on this mention 'bbb-conf --setip <server ip>' commands and such, and I have done that several times.  I have not found anything saying reloading the page allows the server to proceed without error.  Any suggestions or assistance would be greatly appreciated!  Thanks!

[Fred Dixon]

Hi J,

This is very strange.  Can you post the output of the following

  sudo bbb-conf --clean

  sudo bbb-conf --check

Regads,... Fred

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