Ok, figured out why I was getting this error and it looks like a bug.
If you do a Send Invatation with a Validity period of Endless then
Timezone is disabled. If you select Period and select a Timezone then
it works!

On Nov 16, 6:33 pm, sgjava <[email protected]> wrote:
> I've installed openmeetings_1_6_rc1_r3621 on Ubuntu 10.04 server and
> all related dependencies. The server fires up fine, but I'm unable to
> send invites since I get a NPE. I have smtp_server, smtp_port and
> system_email_addr set. email_username and email_userpass are left
> blank (but I've tried these as well):
>
> DEBUG 11-16 18:11:25.686 InvitationService.java 171133 55
> org.openmeetings.app.remote.InvitationService [NioProcessor-1] -
> sendInvitationHash:
>  INFO 11-16 18:11:25.686 InvitationService.java 171133 63
> org.openmeetings.app.remote.InvitationService [NioProcessor-1] -
> validFromHour: 18
>  INFO 11-16 18:11:25.687 InvitationService.java 171134 64
> org.openmeetings.app.remote.InvitationService [NioProcessor-1] -
> validFromMinute: 10
>  INFO 11-16 18:11:25.688 InvitationService.java 171135 83
> org.openmeetings.app.remote.InvitationService [NioProcessor-1] -
> validFromDate: 15.11.2010 18:10:00
>  INFO 11-16 18:11:25.689 InvitationService.java 171136 84
> org.openmeetings.app.remote.InvitationService [NioProcessor-1] -
> validToDate: 16.11.2010 19:00:00
> ERROR 11-16 18:11:25.706 InvitationService.java 171153 115
> org.openmeetings.app.remote.InvitationService [NioProcessor-1] -
> [sendInvitationHash]
> java.lang.NullPointerException: null
>         at
> org.openmeetings.app.remote.InvitationService.sendInvitationHash(Invitation­Service.java:
> 91) [openmeetings.jar:na]
>         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [na:
> 1.6.0_22]
>         at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:
> 39) [na:1.6.0_22]
>         at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImp­l.java:
> 25) [na:1.6.0_22]
>         at java.lang.reflect.Method.invoke(Method.java:597) [na:1.6.0_22]
>         at org.red5.server.service.ServiceInvoker.invoke(ServiceInvoker.java:
> 200) [red5.jar:na]
>         at org.red5.server.service.ServiceInvoker.invoke(ServiceInvoker.java:
> 118) [red5.jar:na]
>         at org.red5.server.net.rtmp.RTMPHandler.invokeCall(RTMPHandler.java:
> 164) [red5.jar:na]
>         at org.red5.server.net.rtmp.RTMPHandler.onInvoke(RTMPHandler.java:
> 416) [red5.jar:na]
>         at
> org.red5.server.net.rtmp.BaseRTMPHandler.messageReceived(BaseRTMPHandler.ja­va:
> 138) [red5.jar:na]
>         at
> org.red5.server.net.rtmp.RTMPMinaIoHandler.messageReceived(RTMPMinaIoHandle­r.java:
> 180) [red5.jar:na]
>         at org.apache.mina.core.filterchain.DefaultIoFilterChain
> $TailFilter.messageReceived(DefaultIoFilterChain.java:713) [mina-
> core-2.0.0-RC2-SNAPSHOT.jar:na]
>         at
> org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceiv­ed(DefaultIoFilterChain.java:
> 434) [mina-core-2.0.0-RC2-SNAPSHOT.jar:na]
>         at org.apache.mina.core.filterchain.DefaultIoFilterChain.access
> $1200(DefaultIoFilterChain.java:46) [mina-core-2.0.0-RC2-
> SNAPSHOT.jar:na]
>         at org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl
> $1.messageReceived(DefaultIoFilterChain.java:793) [mina-core-2.0.0-RC2-
> SNAPSHOT.jar:na]
>         at
> org.red5.server.net.filter.TrafficShapingFilter.messageReceived(TrafficShap­ingFilter.java:
> 204) [red5.jar:na]
>         at
> org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceiv­ed(DefaultIoFilterChain.java:
> 434) [mina-core-2.0.0-RC2-SNAPSHOT.jar:na]
>         at org.apache.mina.core.filterchain.DefaultIoFilterChain.access
> $1200(DefaultIoFilterChain.java:46) [mina-core-2.0.0-RC2-
> SNAPSHOT.jar:na]
>         at org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl
> $1.messageReceived(DefaultIoFilterChain.java:793) [mina-core-2.0.0-RC2-
> SNAPSHOT.jar:na]
>         at org.apache.mina.filter.codec.ProtocolCodecFilter
> $ProtocolDecoderOutputImpl.flush(ProtocolCodecFilter.java:383) [mina-
> core-2.0.0-RC2-SNAPSHOT.jar:na]
>         at
> org.apache.mina.filter.codec.ProtocolCodecFilter.messageReceived(ProtocolCo­decFilter.java:
> 229) [mina-core-2.0.0-RC2-SNAPSHOT.jar:na]
>         at
> org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceiv­ed(DefaultIoFilterChain.java:
> 434) [mina-core-2.0.0-RC2-SNAPSHOT.jar:na]
>         at org.apache.mina.core.filterchain.DefaultIoFilterChain.access
> $1200(DefaultIoFilterChain.java:46) [mina-core-2.0.0-RC2-
> SNAPSHOT.jar:na]
>         at org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl
> $1.messageReceived(DefaultIoFilterChain.java:793) [mina-core-2.0.0-RC2-
> SNAPSHOT.jar:na]
>         at
> org.apache.mina.core.filterchain.IoFilterAdapter.messageReceived(IoFilterAd­apter.java:
> 119) [mina-core-2.0.0-RC2-SNAPSHOT.jar:na]
>         at
> org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceiv­ed(DefaultIoFilterChain.java:
> 434) [mina-core-2.0.0-RC2-SNAPSHOT.jar:na]
>         at
> org.apache.mina.core.filterchain.DefaultIoFilterChain.fireMessageReceived(D­efaultIoFilterChain.java:
> 426) [mina-core-2.0.0-RC2-SNAPSHOT.jar:na]
>         at
> org.apache.mina.core.polling.AbstractPollingIoProcessor.read(AbstractPollin­gIoProcessor.java:
> 708) [mina-core-2.0.0-RC2-SNAPSHOT.jar:na]
>         at
> org.apache.mina.core.polling.AbstractPollingIoProcessor.process(AbstractPol­lingIoProcessor.java:
> 665) [mina-core-2.0.0-RC2-SNAPSHOT.jar:na]
>         at
> org.apache.mina.core.polling.AbstractPollingIoProcessor.process(AbstractPol­lingIoProcessor.java:
> 654) [mina-core-2.0.0-RC2-SNAPSHOT.jar:na]
>         at org.apache.mina.core.polling.AbstractPollingIoProcessor.access
> $500(AbstractPollingIoProcessor.java:64) [mina-core-2.0.0-RC2-
> SNAPSHOT.jar:na]
>         at org.apache.mina.core.polling.AbstractPollingIoProcessor
> $Processor.run(AbstractPollingIoProcessor.java:1111) [mina-core-2.0.0-
> RC2-SNAPSHOT.jar:na]
>         at
> org.apache.mina.util.NamePreservingRunnable.run(NamePreservingRunnable.java­:
> 64) [mina-core-2.0.0-RC2-SNAPSHOT.jar:na]
>         at java.util.concurrent.ThreadPoolExecutor
> $Worker.runTask(ThreadPoolExecutor.java:886) [na:1.6.0_22]
>         at java.util.concurrent.ThreadPoolExecutor
> $Worker.run(ThreadPoolExecutor.java:908) [na:1.6.0_22]
>         at java.lang.Thread.run(Thread.java:662) [na:1.6.0_22]

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