Hello Marco,

Are you using derby DB?
if yes could you please edit your persistense.xml and modify the line
<property name="openjpa.QueryCache" value="true" />
to be
<property name="openjpa.QueryCache" value="false" />

On Sun, Sep 27, 2015 at 9:23 PM, Marco <marco.brign...@marcobaldo.ch> wrote:

> Hello.
>
> I just installed openmeeting and it is now up and running. However I
> have an issue to be debugged and I need some help.
>
> I can enter a room and start a session without any problem. However if I
> leave the room and then I try to reenter it an empty screen is displayed
> after an attemp of initialization. By changing one of the configuration
> parameters of the room (i.e. mic settings) the room is getting again
> usable (for one session).
>
> On the console of MD I have the following error messages
>
> DEBUG 09-27 17:11:51.377 Localizer.java 154300463 378
> org.apache.wicket.Localizer [RTMPConnectionExecutor#ZT3DDGLD8VIOZ-1] -
> Property found in cache: '1799'; Component: 'null'; value: 'null'
> DEBUG 09-27 17:11:51.441 AuthLevelUtil.java 154300527 36
> org.apache.openmeetings.util.AuthLevelUtil
> [RTMPConnectionExecutor#ZT3DDGLD8VIOZ-1] - Level Room :: [GRANTED]
> DEBUG 09-27 17:11:51.463 MainService.java 154300549 179
> org.apache.openmeetings.remote.MainService
> [RTMPConnectionExecutor#ZT3DDGLD8VIOZ-1] - [loginWicket]
> DEBUG 09-27 17:11:51.477 MainService.java 154300563 183
> org.apache.openmeetings.remote.MainService
> [RTMPConnectionExecutor#ZT3DDGLD8VIOZ-1] - [loginWicket] user and roomid
> are not empty: 4, 11
> DEBUG 09-27 17:11:51.478 MainService.java 154300564 212
> org.apache.openmeetings.remote.MainService
> [RTMPConnectionExecutor#ZT3DDGLD8VIOZ-1] - [loginWicket] public ? false,
> ownedId ? null false
> [ERROR] [RTMPConnectionExecutor#ZT3DDGLD8VIOZ-1]
> org.red5.server.service.ServiceInvoker - Error executing call: Service:
> xmlcrm Method: loginWicket Num Params: 3 0:
> a78bd6f7faefae1e7ee322267023897e 1: a78bd6f7faefae1e7ee322267023897e 2: 11
> java.lang.reflect.InvocationTargetException: null
>         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> ~[na:1.8.0_45]
>         at
>
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> ~[na:1.8.0_45]
>         at
>
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> ~[na:1.8.0_45]
>         at java.lang.reflect.Method.invoke(Method.java:497) ~[na:1.8.0_45]
>         at
> org.red5.server.service.ServiceInvoker.invoke(ServiceInvoker.java:196)
> [red5-server-common-1.0.5-RELEASE.jar:na]
>         at
> org.red5.server.service.ServiceInvoker.invoke(ServiceInvoker.java:115)
> [red5-server-common-1.0.5-RELEASE.jar:na]
>         at
> org.red5.server.net.rtmp.RTMPHandler.invokeCall(RTMPHandler.java:186)
> [red5-server-common-1.0.5-RELEASE.jar:1.0.5-RELEASE]
>         at
> org.red5.server.net.rtmp.RTMPHandler.onCommand(RTMPHandler.java:293)
> [red5-server-common-1.0.5-RELEASE.jar:1.0.5-RELEASE]
>         at
>
> org.red5.server.net.rtmp.BaseRTMPHandler.messageReceived(BaseRTMPHandler.java:105)
> [red5-server-common-1.0.5-RELEASE.jar:1.0.5-RELEASE]
>         at
>
> org.red5.server.net.rtmp.ReceivedMessageTask.call(ReceivedMessageTask.java:57)
> [red5-server-common-1.0.5-RELEASE.jar:1.0.5-RELEASE]
>         at
>
> org.red5.server.net.rtmp.ReceivedMessageTask.call(ReceivedMessageTask.java:11)
> [red5-server-common-1.0.5-RELEASE.jar:1.0.5-RELEASE]
>         at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> [na:1.8.0_45]
>         at
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
> [na:1.8.0_45]
>         at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> [na:1.8.0_45]
>         at
>
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> [na:1.8.0_45]
>         at
>
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> [na:1.8.0_45]
>         at java.lang.Thread.run(Thread.java:745) [na:1.8.0_45]
> Caused by: java.lang.NullPointerException: null
>         at
>
> org.apache.openmeetings.remote.MainService.loginWicket(MainService.java:214)
> ~[openmeetings-core-3.0.6-RELEASE.jar:na]
>         ... 17 common frames omitted
>
> On the left window of the users the following message is displayed:
>
> []: has left the room [time]
>
> Any idea where the problem could be?
>
> Tnx in advance for help
>
> Marco
>
>
>


-- 
WBR
Maxim aka solomax

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