Java Development

[roney99625]

Hi,

My application throws uncaught exception saying that application is not responding and hence it crashes. I have total 3 threads running. One is periodically (twice in a sec) painting the screen. 2nd one is getting datagrams from server and 3rd one feeds the datagram to player by implementing read method of source stream. Everything is running smooth for some duration (for 3-4 mins) then suddenly I am getting GC icon displaying very frequently and after some secs it crashes. I dont know whats going wrong. Can any body advise me plz.

Thanks in advance.

Regards,

Roney

[peter_strange]

Review this Video, noting especially the profiling tool.  I think, with a long running but intensive application such as you are attempting, you will have to be extremely careful about managing your objects.

Garbage Collection

http://www.blackberry.com/DevMediaLibrary/view.do?name=GarbageCollection

The 'not responding' may be related, but alternatively, this may be another problem, related to your hogging the event Thread, presumably in your screen painting Thread.

You might find this Video useful if the Event Thread is not clear to you

http://www.blackberry.com/DevMediaLibrary/view.do?name=WhatistheEventThread 

[klyubin]

Please post the Event Log (JavaLoader -u eventlog >crash.log) listing the dump of all the threads and locks involved (lock information follows the section with ForcedStackTraceExceptions). The dump is automatically generated by the OS and is quite helpful in determining the reason for the application event queue overflow.

Message Edited by klyubin on 04-21-2009 10:26 PM

[roney99625]

ok. Here is the crash log

guid:0x9C3CD62E3320B498 time: Wed Apr 22 10:27:06 2009  severity:0 type:3 app:Java Exception data:
    ForcedStackTraceException
    MyApplication(135) 31 1
    MyApplication
     DvcNetwork$1
     run
     0x22AC
guid:0x9C3CD62E3320B498 time: Wed Apr 22 10:27:06 2009  severity:0 type:3 app:Java Exception data:
    ForcedStackTraceException
    MyApplication(135) 126 2 0x3D7CA000
    net_rim_cldc-1
     TimerThread
     <private>
     0xB75C
    net_rim_cldc-1
     TimerThread
     run
     0xB6FA
guid:0x9C3CD62E3320B498 time: Wed Apr 22 10:27:06 2009  severity:0 type:3 app:Java Exception data:
    ForcedStackTraceException
    MyApplication(135) 37 1
    net_rim_cldc
     Object
     wait
     0x8951
    net_rim_cldc-16
     BasicPlayerImpl$NotifyListenerThread
     run
     0x125F
guid:0x9C3CD62E3320B498 time: Wed Apr 22 10:27:06 2009  severity:0 type:3 app:Java Exception data:
    ForcedStackTraceException
    MyApplication(135) 34 1
    MyApplication
     AudioStreamSourceStream
     read
     0x682
    net_rim_cldc-16
     DataSourceInputStream
     read
     0x27B7
    net_rim_cldc-19
     RingBuffer
     write
     0x7205
    net_rim_media
     StreamingMediaPlayer
     read
     0x8AC6
    net_rim_media
     StreamingMediaPlayer
     moreData
     0x8BFB
    net_rim_media
     MediaStreamingManagerImpl$StreamingSessionImpl$ReadThread
     run
     0x53DE
guid:0x9C3CD62E3320B498 time: Wed Apr 22 10:27:06 2009  severity:0 type:3 app:Java Exception data:
    ForcedStackTraceException
    MyApplication(135) 44 2 0x3EBDE000
    net_rim_cldc
     Object
     wait
     0x8951
    net_rim_cldc-16
     BasicPlayerImpl$NotifyListenerThread
     run
     0x125F
guid:0x9C3CD62E3320B498 time: Wed Apr 22 10:27:06 2009  severity:0 type:3 app:Java Exception data:
    ForcedStackTraceException
    MyApplication(135) 33 2 0x3EBF4000
    net_rim_cldc
     Object
     wait
     0x8951
    net_rim_cldc-16
     BasicPlayerImpl$NotifyListenerThread
     run
     0x125F
guid:0x9C3CD62E3320B498 time: Wed Apr 22 10:27:06 2009  severity:0 type:3 app:Java Exception data:
    ForcedStackTraceException
    MyApplication(135) 82 2 0x405E2000
    net_rim_cldc
     Object
     wait
     0x8951
    net_rim_cldc-14
     UdpConnection
     send
     0xACBF
    net_rim_cldc-14
     Protocol
     send
     0x70C9
    MyApplication-1
     AudioSocket
     sendControlCommand
     0x4E1
    MyApplication-1
     AudioSocket$1
     run
     0x69C
    net_rim_cldc-1
     TimerThread
     <private>
     0xB800
    net_rim_cldc-1
     TimerThread
     run
     0xB6FA
guid:0x9C3CD62E3320B498 time: Wed Apr 22 10:27:06 2009  severity:0 type:3 app:Java Exception data:
    ForcedStackTraceException
    MyApplication(135) 38 2 0x40830000
    net_rim_cldc-14
     Protocol
     receive
     0x6F79
    MyApplication-1
     AudioSocket
     readDatagram
     0x386
    MyApplication-1
     AudioSocket
     run
     0x5C1
    net_rim_cldc-1
     Thread
     run
     0xB0A0
guid:0x9C3CD62E3320B498 time: Wed Apr 22 10:27:06 2009  severity:0 type:3 app:Java Exception data:
    ForcedStackTraceException
    MyApplication(135) 51 2 0x40EB2000
    net_rim_cldc
     Object
     wait
     0x8951
    net_rim_cldc-13
     TcpInputStream
     read
     0xA81B
    net_rim_cldc-1
     DataInputStream
     read
     0x1D20
    net_rim_crypto_2-2
     SSLRecordProtocol
     read
     0x4085
    net_rim_crypto_1-3
     TLSInputStream
     read
     0x43F6
    net_rim_cldc-1
     DataInputStream
     read
     0x1D08
    net_rim_cldc-1
     DataInputStream
     readUnsignedShort
     0x1E32
    net_rim_cldc-1
     DataInputStream
     readShort
     0x1E23
    MyApplication-1
     Serializer
     deserializeShort
     0x6B19
    MyApplication-1
     TransportHeader
     deserialize
     0x7691
    MyApplication-1
     ResponseParser
     readPacketFromDataInputStream
     0x6557
    MyApplication-1
     Reader
     run
     0x5DC5
    net_rim_cldc-1
     Thread
     run
     0xB0A0
guid:0x9C3CD62E3320B498 time: Wed Apr 22 10:27:06 2009  severity:0 type:3 app:Java Exception data:
    ForcedStackTraceException
    MyApplication(135) 54 1
    net_rim_cldc-1
     StringBuffer
     doAppend
     0xA464
    net_rim_cldc-1
     StringBuffer
     append
     0xA039
    net_rim_cldc-1
     StringBuffer
     append
     0xA01D
    MyApplication-1
     Log
     debug
     0x5020
    MyApplication-1
     Reader
     run
     0x5DE5
    net_rim_cldc-1
     Thread
     run
     0xB0A0
guid:0x9C3CD62E3320B498 time: Wed Apr 22 10:27:06 2009  severity:0 type:3 app:Java Exception data:
    ForcedStackTraceException
    MyApplication(135) 40 2 0x42DEE000
    net_rim_cldc-1
     TimerThread
     <private>
     0xB7EC
    net_rim_cldc-1
     TimerThread
     run
     0xB6FA
guid:0x9C3CD62E3320B498 time: Wed Apr 22 10:27:06 2009  severity:0 type:3 app:Java Exception data:
    ForcedStackTraceException
    MyApplication(135) 55 2 0x34C0E000
    net_rim_cldc
     Object
     wait
     0x8951
    MyApplication-1
     DisplayManager
     run
     0x252B
    net_rim_cldc-1
     Thread
     run
     0xB0A0
guid:0x9C3CD62E3320B498 time: Wed Apr 22 10:27:06 2009  severity:0 type:3 app:Java Exception data:
    ForcedStackTraceException
    MyApplication(135) 73 2 0x3553E000
    net_rim_cldc
     Object
     wait
     0x8951
    MyApplication-1
     PacketQueue
     get
     0x5663
    MyApplication
     DvcNetwork
     run
     0x1FF6
    net_rim_cldc-1
     Thread
     run
     0xB0A0
guid:0x9C3CD62E3320B498 time: Wed Apr 22 10:27:06 2009  severity:0 type:3 app:Java Exception data:
    ForcedStackTraceException
    MyApplication(135) 35 4 0x6D38000
    net_rim_cldc-6
     ApplicationManagerImpl
     getForegroundProcessId
     0x2EAC
    net_rim_cldc-6
     Application
     isForeground
     0x526
    net_rim_cldc-9
     UiEngineImpl
     updateDisplay
     0xACF4
    net_rim_cldc-9
     UiEngineImpl
     processMessage
     0xA260
    net_rim_cldc-6
     Application
     processNextMessage
     0x13E9
    net_rim_cldc-6
     Application
     enterEventDispatcher
     0xAA8
    MyApplication
     MyApplicationClass
     main
     0x2EF9
guid:0x9C3CD62E3320B498 time: Wed Apr 22 10:27:06 2009  severity:0 type:3 app:Java Exception data:
    ForcedStackTraceException
    net_rim_services_impl(9) 90 2 0x320EA000
    net_rim_cldc
     Object
     wait
     0x8951
    net_rim_cldc-5
     TransportReceiveThread
     run
     0xB7CF
guid:0x9C3CD62E3320B498 time: Wed Apr 22 10:27:06 2009  severity:0 type:3 app:Java Exception data:
    ForcedStackTraceException
    net_rim_services_impl(9) 42 2 0x322D0000
    net_rim_cldc
     Object
     wait
     0x8951
    net_rim_cldc-13
     DNSResolverIPv4$DNSResolverIPv4Thread
     run
     0x3693
guid:0x9C3CD62E3320B498 time: Wed Apr 22 10:27:06 2009  severity:0 type:3 app:Java Exception data:
    ForcedStackTraceException
    net_rim_services_impl(10) 47 2 0x2E7F8000
    net_rim_cldc
     Object
     wait
     0x8951
    net_rim_os-9
     EventHandler
     run
     0x1C99
guid:0x9C3CD62E3320B498 time: Wed Apr 22 10:27:06 2009  severity:0 type:3 app:Java Exception data:
    ForcedStackTraceException
    net_rim_bb_fileindexservice(125) 48 2 0x25BA8000
    net_rim_cldc
     Object
     wait
     0x8951
    net_rim_cldc-16
     BasicPlayerImpl$NotifyListenerThread
     run
     0x125F
guid:0x9C3CD62E3320B498 time: Wed Apr 22 10:27:06 2009  severity:0 type:3 app:Java Exception data:
    ForcedStackTraceException
    net_rim_services_impl(9) 41 2 0x252C6000
    net_rim_cldc-5
     DatagramConnectionBase
     receive
     0x2066
    net_rim_bb_apps_framework-8
     DefaultReceiveThread
     run
     0x2E94
guid:0x9C3CD62E3320B498 time: Wed Apr 22 10:27:06 2009  severity:0 type:3 app:Java Exception data:
    ForcedStackTraceException
    net_rim_bb_fileindexservice(125) 43 2 0x21118000
    net_rim_cldc
     Object
     wait
     0x8951
    net_rim_bb_fileindexservice
     FileScanner
     <private>
     0x148C
    net_rim_bb_fileindexservice
     FileScanner
     run
     0x10FA
guid:0x9C3CD62E3320B498 time: Wed Apr 22 10:27:06 2009  severity:0 type:3 app:Java Exception data:
    ForcedStackTraceException
    net_rim_bb_otasl_app(127) 46 2 0x21364000
    net_rim_cldc
     Object
     wait
     0x8951
    net_rim_cldc-20
     MessageQueue
     dequeue
     0x5291
    net_rim_cldc-6
     ApplicationProcess
     getMessage
     0x521A
    net_rim_cldc-6
     Application
     processNextMessage
     0xBA1
    net_rim_cldc-6
     Application
     enterEventDispatcher
     0xAA8
    net_rim_bb_otasl_app
     OTASLApp
     main
     0x109
guid:0x9C3CD62E3320B498 time: Wed Apr 22 10:27:06 2009  severity:0 type:3 app:Java Exception data:
    ForcedStackTraceException
    net_rim_bb_fileindexservice(125) 45 2 0x208C4000
    net_rim_cldc
     Object
     wait
     0x8951
    net_rim_cldc-20
     MessageQueue
     dequeue
     0x5291
    net_rim_cldc-6
     ApplicationProcess
     getMessage
     0x521A
    net_rim_cldc-6
     Application
     processNextMessage
     0xBA1
    net_rim_cldc-6
     Application
     enterEventDispatcher
     0xAA8
    net_rim_bb_fileindexservice
     IndexServiceApp
     <init>
     0x20F0
    net_rim_bb_fileindexservice
     IndexServiceApp
     main
     0x2107
guid:0x9C3CD62E3320B498 time: Wed Apr 22 10:27:06 2009  severity:0 type:3 app:Java Exception data:
    ForcedStackTraceException
    net_rim_services_impl(9) 53 2 0x1DDAE000
    net_rim_cldc-5
     DatagramConnectionBase
     receive
     0x2066
    net_rim_bb_apps_framework-8
     DefaultReceiveThread
     run
     0x2E94

[klyubin]

Are you sure that this is the complete stack dump? It usually includes the stack trace of the thread that initiated the ForcedStackTraceException. The stack traces are followed by an important section listing all the locks that are held by various threads (one lock per line, lines contain "VM:THMNx=..." ).

Message Edited by klyubin on 04-23-2009 12:03 AM

[roney99625]

Yes you are right. This is not the whole stack trace since its too big to post. But by the way I got solution. I dont know whether its permenant solution or temperarory. I just put Thread.yield() in while loop of receiving datagrams and it solved!!!

Regards,

Ronak

[baskaraninfo]

@roney99625

If your problem had been resolved, please make this post as Solved.

[roney99625]

I guess it reduced the frequency of crashing but still its crashing. I have latest crash log but its too big to paste here. Can you suggest me good way to make it available?

[klyubin]

I'm new to this forum. There doesn't appear to be a way to attach a log file. May be you can split the log over several posts...

[roney99625]

ok. here you go: Part1:

guid:0x9C3CD62E3320B498 time: Thu Apr 23 06:58:13 2009  severity:0 type:3 app:Java Exception data:
    ForcedStackTraceException
    MyApplication(143) 35 2 0x6EB40000
    net_rim_cldc-1
     TimerThread
     <private>
     0xB75C
    net_rim_cldc-1
     TimerThread
     run
     0xB6FA
guid:0x9C3CD62E3320B498 time: Thu Apr 23 06:58:13 2009  severity:0 type:3 app:Java Exception data:
    ForcedStackTraceException
    MyApplication(143) 32 1
    net_rim_os-2
     PosixFileOutputStream
     write
     0x7386
    net_rim_cldc-1
     DataOutputStream
     write
     0x2156
    net_rim_cldc-1
     OutputStream
     write
     0x609D
    net_rim_cldc-13
     StringUtilities
     writeUTF
     0x8F99
    net_rim_cldc-1
     DataOutputStream
     writeUTF
     0x22FD
    MyApplication-1
     LogFilePersister
     persistLog
     0x4FB4
    MyApplication-1
     Log
     <private>
     0x4EC0
    MyApplication-1
     Log
     debug
     0x4E38
    MyApplication
     AudioPlayer
     playerUpdate
     0x36A
    net_rim_cldc-16
     BasicPlayerImpl$1
     run
     0x10A7
    net_rim_cldc-16
     BasicPlayerImpl$NotifyListenerThread
     <private>
     0x1356
    net_rim_cldc-16
     BasicPlayerImpl$NotifyListenerThread
     run
     0x126F
guid:0x9C3CD62E3320B498 time: Thu Apr 23 06:58:13 2009  severity:0 type:3 app:Java Exception data:
    ForcedStackTraceException
    MyApplication(143) 81 4 0x768B8000
    net_rim_os-2
     PosixFileOutputStream
     write
     0x7386
    net_rim_cldc-1
     DataOutputStream
     write
     0x2156
    net_rim_cldc-1
     OutputStream
     write
     0x609D
    net_rim_cldc-13
     StringUtilities
     writeUTF
     0x8F99
    net_rim_cldc-1
     DataOutputStream
     writeUTF
     0x22FD
    MyApplication-1
     LogFilePersister
     persistLog
     0x4FB4
    MyApplication-1
     Log
     <private>
     0x4EC0
    MyApplication-1
     Log
     debug
     0x4E38
    MyApplication
     AudioStreamSourceStream
     read
     0x6B6
    net_rim_cldc-16
     DataSourceInputStream
     read
     0x27B7
    net_rim_cldc-19
     RingBuffer
     write
     0x7205
    net_rim_media
     StreamingMediaPlayer
     read
     0x8AC6
    net_rim_media
     StreamingMediaPlayer
     moreData
     0x8BFB
    net_rim_media
     MediaStreamingManagerImpl$StreamingSessionImpl$ReadThread
     run
     0x53DE
guid:0x9C3CD62E3320B498 time: Thu Apr 23 06:58:13 2009  severity:0 type:3 app:Java Exception data:
    ForcedStackTraceException
    MyApplication(143) 29 2 0x6FB3E000
    net_rim_cldc
     Object
     wait
     0x8951
    net_rim_cldc-16
     BasicPlayerImpl$NotifyListenerThread
     run
     0x125F
guid:0x9C3CD62E3320B498 time: Thu Apr 23 06:58:13 2009  severity:0 type:3 app:Java Exception data:
    ForcedStackTraceException
    MyApplication(143) 61 2 0x6FB28000
    net_rim_cldc
     Object
     wait
     0x8951
    net_rim_cldc-16
     BasicPlayerImpl$NotifyListenerThread
     run
     0x125F
guid:0x9C3CD62E3320B498 time: Thu Apr 23 06:58:13 2009  severity:0 type:3 app:Java Exception data:
    ForcedStackTraceException
    MyApplication(143) 26 2 0x74606000
    net_rim_cldc-1
     TimerThread
     <private>
     0xB7EC
    net_rim_cldc-1
     TimerThread
     run
     0xB6FA
guid:0x9C3CD62E3320B498 time: Thu Apr 23 06:58:14 2009  severity:0 type:3 app:Java Exception data:
    ForcedStackTraceException
    MyApplication(143) 33 2 0x747D0000
    net_rim_cldc-14
     Protocol
     receive
     0x6F79
    MyApplication-1
     AudioSocket
     readDatagram
     0x386
    MyApplication-1
     AudioSocket
     run
     0x534
    net_rim_cldc-1
     Thread
     run
     0xB0A0
guid:0x9C3CD62E3320B498 time: Thu Apr 23 06:58:14 2009  severity:0 type:3 app:Java Exception data:
    ForcedStackTraceException
    MyApplication(143) 31 2 0x74F10000
    net_rim_cldc
     Object
     wait
     0x8951
    net_rim_cldc-13
     TcpInputStream
     read
     0xA81B
    net_rim_cldc-1
     DataInputStream
     read
     0x1D20
    net_rim_crypto_2-2
     SSLRecordProtocol
     read
     0x4085
    net_rim_crypto_1-3
     TLSInputStream
     read
     0x43F6
    net_rim_cldc-1
     DataInputStream
     read
     0x1D08
    net_rim_cldc-1
     DataInputStream
     readUnsignedShort
     0x1E32
    net_rim_cldc-1
     DataInputStream
     readShort
     0x1E23
    MyApplication-1
     Serializer
     deserializeShort
     0x692D
    MyApplication-1
     TransportHeader
     deserialize
     0x74A5
    MyApplication-1
     ResponseParser
     readPacketFromDataInputStream
     0x6369
    MyApplication-1
     Reader
     run
     0x5BD7
    net_rim_cldc-1
     Thread
     run
     0xB0A0
guid:0x9C3CD62E3320B498 time: Thu Apr 23 06:58:14 2009  severity:0 type:3 app:Java Exception data:
    ForcedStackTraceException
    MyApplication(143) 30 4 0x768B8000
    net_rim_os-2
     PosixFileOutputStream
     write
     0x7386
    net_rim_cldc-1
     DataOutputStream
     write
     0x2156
    net_rim_cldc-1
     OutputStream
     write
     0x609D
    net_rim_cldc-13
     StringUtilities
     writeUTF
     0x8F99
    net_rim_cldc-1
     DataOutputStream
     writeUTF
     0x22FD
    MyApplication-1
     LogFilePersister
     persistLog
     0x4FB4
    MyApplication-1
     Log
     <private>
     0x4EC0
    MyApplication-1
     Log
     debug
     0x4E38
    MyApplication-1
     Reader
     run
     0x5BF7
    net_rim_cldc-1
     Thread
     run
     0xB0A0
guid:0x9C3CD62E3320B498 time: Thu Apr 23 06:58:14 2009  severity:0 type:3 app:Java Exception data:
    ForcedStackTraceException
    MyApplication(143) 28 2 0x75F50000
    net_rim_cldc-1
     TimerThread
     <private>
     0xB7EC
    net_rim_cldc-1
     TimerThread
     run
     0xB6FA
guid:0x9C3CD62E3320B498 time: Thu Apr 23 06:58:14 2009  severity:0 type:3 app:Java Exception data:
    ForcedStackTraceException
    MyApplication(143) 126 2 0x76372000
    net_rim_cldc
     Object
     wait
     0x8951
    MyApplication-1
     DisplayManager
     run
     0x233D
    net_rim_cldc-1
     Thread
     run
     0xB0A0
guid:0x9C3CD62E3320B498 time: Thu Apr 23 06:58:14 2009  severity:0 type:3 app:Java Exception data:
    ForcedStackTraceException
    MyApplication(143) 34 1
    net_rim_cldc-1
     StringBuffer
     append
     0xA039
    MyApplication-1
     Log
     debug
     0x4E2D
    MyApplication-1
     DvcRTP
     buildStatsHeader
     0x4343
    MyApplication
     DvcNetwork
     run
     0x21F1
    net_rim_cldc-1
     Thread
     run
     0xB0A0
guid:0x9C3CD62E3320B498 time: Thu Apr 23 06:58:14 2009  severity:0 type:3 app:Java Exception data:
    ForcedStackTraceException
    MyApplication(143) 38 1
    net_rim_cldc-1
     StringBuffer
     toString
     0xA386
    MyApplication-1
     Log
     <private>
     0x4EBA
    MyApplication-1
     Log
     debug
     0x4E38
    MyApplication-1
     DisplayManager
     <private>
     0x269E
    MyApplication-1
     DisplayManager
     paint
     0x1D72
    MyApplication-1
     DisplayScreen
     paint
     0x324B
    net_rim_cldc-8
     Field
     paintSelf
     0x2666
    net_rim_cldc-8
     Manager
     paintSelf
     0x922B
    net_rim_cldc-9
     Screen
     doPaint0
     0x4405
    net_rim_cldc-9
     UiEngineImpl
     <private>
     0xB60D
    net_rim_cldc-9
     UiEngineImpl
     doPainting
     0x9510
    net_rim_cldc-9
     UiEngineImpl
     pushModalScreen
     0xAA29
    net_rim_cldc-10
     Menu
     show
     0x8395
    net_rim_cldc-9
     Screen
     onMenu
     0x4C49
    net_rim_cldc-9
     Screen
     keyCharUnhandled
     0x49E2
    net_rim_cldc-11
     MainScreen
     keyCharUnhandled
     0x35BC
    net_rim_cldc-9
     Screen
     dispatchKeyEvent
     0x3D7E
    net_rim_cldc-9
     Screen
     processKeyEvent
     0x60EC
    net_rim_cldc-9
     UiEngineImpl
     processMessage
     0x9F7F
    net_rim_cldc-6
     Application
     processNextMessage
     0x13E9
    net_rim_cldc-6
     Application
     enterEventDispatcher
     0xAA8
    MyApplication
     MyApplicationApplication
     main
     0x30BA