[jitsi-dev] [jitsi-android] XMPP account never gets online (#7)


#1

Sometimes XMPP account once became offline never reconnects again. In this situation when user tries to disable the account the app will freeze on "Disconnecting account" progress dialog.
Investigation shows that "disconnect" thread is waiting on "initializationLock" of Jabber provider. At the same time another thread(Keep alive thread) owns the same lock and tries to unregister the account. But it never does as it's blocked on another monitor in close() method of BufferedReader. Since "initializationLock" is never realesed we have a deadlock. The reason why close() method is blocked is unknown for now.

(Issue migrated from https://trac.jitsi.org/ticket/1266)

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#2

The situation from description above was also caused by "enter password" dialog being hidden by the contactlist on startup. Dialog was waiting forever thus blocking login thread and not allowing to disconnect. Fixed in https://github.com/jitsi/jitsi-android/commit/89e6c44dc6d63ec8abb807f73af7770dff7f2635.

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#3

Sometimes Smack gets blocked on Socket connect() for even a minute, because it's called without specified timeout. This will also block "Disconnecting account" dialog on accounts list screen for the same amount of time.

java.lang.Thread.State: RUNNABLE
	  at libcore.io.Posix.connect(Posix.java:-1)
	  at libcore.io.BlockGuardOs.connect(BlockGuardOs.java:85)
	  at libcore.io.IoBridge.connectErrno(IoBridge.java:127)
	  at libcore.io.IoBridge.connect(IoBridge.java:112)
	  at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:192)
	  at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:459)
	  at java.net.Socket.connect(Socket.java:842)
	  at java.net.Socket.connect(Socket.java:785)
	  at org.jivesoftware.smack.proxy.DirectSocketFactory.createSocket(DirectSocketFactory.java:28)
	  at org.jivesoftware.smack.XMPPConnection.connectUsingConfiguration(XMPPConnection.java:527)
	  at org.jivesoftware.smack.XMPPConnection.connect(XMPPConnection.java:976)
	  at net.java.sip.communicator.impl.protocol.jabber.ProtocolProviderServiceJabberImpl.connectAndLogin(ProtocolProviderServiceJabberImpl.java:1172)
	  at net.java.sip.communicator.impl.protocol.jabber.ProtocolProviderServiceJabberImpl.connectAndLogin(ProtocolProviderServiceJabberImpl.java:946)
	  at net.java.sip.communicator.impl.protocol.jabber.ProtocolProviderServiceJabberImpl.connectUsingSRVRecords(ProtocolProviderServiceJabberImpl.java:885)
	  at net.java.sip.communicator.impl.protocol.jabber.ProtocolProviderServiceJabberImpl.initializeConnectAndLogin(ProtocolProviderServiceJabberImpl.java:678)
	  at net.java.sip.communicator.impl.protocol.jabber.ProtocolProviderServiceJabberImpl.register(ProtocolProviderServiceJabberImpl.java:475)
	  at net.java.sip.communicator.util.account.LoginManager$RegisterProvider.run(LoginManager.java:426)
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