How to Collect Debug Info for Oracle SQL Developer

thatjeffsmith SQL Developer 31 Comments

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In a perfect world, there would be no software bugs. Developers would always test their code. QA would find any scenarios and bugs the developers hadn’t already thought of. Regression tests would be complete and flawless. But alas, we can only afford to pay mere humans here, so we will have bugs from time to time.

Or sometimes you are trying to do something the software wasn’t designed for, or perhaps your machine has exhausted it’s resources trying to build the un-buildable.

When you run into problems, you will need help.

Developers need your help so they can help you. Surprisingly enough, feedback like this isn’t very helpful:

Your program isn’t working. How can I make it work?

When you are ready to work with us on the SQL Developer OTN forum, you will most likely be asked to run SQL Developer and capture the output from the command console. In case you need help with this, here is a step-by-step process you can follow in Windows 7 (should work in XP too.)

Open a windows command window

Start – Run – CMD

Once it’s open, click on the window icon and select ‘Defaults.’ Change the default buffer size to be something bigger, much bigger.

Set the CMD window default buffer size HIGHER

Note: you only need to do this once.

Navigate to your SQL Developer Installation Folder

Instead of running the ‘sqldeveloper.exe’ file in the root directory, we are going to go several sub-directories down. Find the ‘bin’ sub-directory and run the ‘sqldeveloper.exe’ there.

When you do this, a CMD window will open, and then you’ll see the SQL Developer application load.

The SQL Developer bin directory - run the tool from here and get a logging window

Use SQL Developer as normal, until it ‘breaks’ or ‘hangs’

Now, you are ready to grab the nitty-gritty information that MIGHT tell the developer what is going wrong or happening in your scenario.

Click back into the CMD window

Send a Ctrl+Break or a Ctrl+Pause.

If you on a newer laptop that doesn’t have this key, be sure to check the ‘Fn’ subset of keys. If you need to map the BREAK or PAUSE buttons, this article might help.

You can also try the on-screen keyboard in windows – just type ‘OSK’ in your START – RUN prompt.

Copy the logging information from the command window – all of it

We need this information, help us get it!

Open a case with Oracle Support or Start a Thread on the Forums

Or email me. If you’re on my blog reading this, it’s the least I can do to help 🙂

Now, before you hit ‘Send’ or ‘Post’ or ‘Submit’ – be sure to add a brief description of what you were doing in the application when you ran into the problem. Even if you were doing ‘nothing,’ let us know how many connections you had open, what windows were active, etc. The more you can tell us, the higher your odds go up to getting a quick fix or at least an answer as to what is happening.

Also include the following information:

  • The version of SQL Developer you are running
  • The version of the JDK you are using
  • The OS you are using
  • The version of Oracle you are connected to

Now, don’t be surprised if you get asked to upgrade to a supported configuration, say ‘version 3.1 and the 1.6 JDK.’ Supporting older versions of software is fun, and while we enjoy a challenge, it may be easier for you to upgrade your way out of the problem at hand.

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Comments 31

  1. I experience the following error when trying to start sql developer. (basically the application does not start)

    Exception in thread “main” java.lang.UnsatisfiedLinkError: C:\Program Files (x86)\sqldeveloper\jdk\bin\javaaccessbridge.dll: Can’t find dependent libraries
    at java.base/java.lang.ClassLoader$NativeLibrary.load(Native Method)
    at java.base/java.lang.ClassLoader.loadLibrary0(Unknown Source)
    at java.base/java.lang.ClassLoader.loadLibrary(Unknown Source)
    at java.base/java.lang.Runtime.loadLibrary0(Unknown Source)
    at java.base/java.lang.System.loadLibrary(Unknown Source)
    at jdk.accessibility/com.sun.java.accessibility.internal.AccessBridge$3.run(Unknown Source)
    at jdk.accessibility/com.sun.java.accessibility.internal.AccessBridge$3.run(Unknown Source)
    at java.base/java.security.AccessController.doPrivileged(Native Method)
    at java.base/java.security.AccessController.doPrivileged(Unknown Source)
    at jdk.accessibility/com.sun.java.accessibility.internal.AccessBridge.(Unknown Source)
    at jdk.accessibility/com.sun.java.accessibility.internal.ProviderImpl.activate(Unknown Source)
    at java.desktop/java.awt.Toolkit.lambda$loadAssistiveTechnologies$0(Unknown Source)
    at java.base/java.security.AccessController.doPrivileged(Native Method)
    at java.desktop/java.awt.Toolkit.loadAssistiveTechnologies(Unknown Source)
    at java.desktop/java.awt.Toolkit.getDefaultToolkit(Unknown Source)
    at java.desktop/java.awt.Toolkit.getEventQueue(Unknown Source)
    at java.desktop/java.awt.EventQueue.isDispatchThread(Unknown Source)
    at java.desktop/javax.swing.SwingUtilities.isEventDispatchThread(Unknown Source)
    at oracle.ide.osgi.boot.SplashScreenImpl.SynchronizeWithEdt(SplashScreenImpl.java:529)
    at oracle.ide.osgi.boot.api.SplashScreen.createInstance(SplashScreen.java:66)
    at oracle.ide.osgi.boot.OracleIdeLauncher.showSplashScreen(OracleIdeLauncher.java:828)
    at oracle.ide.osgi.boot.OracleIdeLauncher.main(OracleIdeLauncher.java:109)

    I am using windows 10, the latest java JDK and sql developer(just downloaded)

    1. thatjeffsmith Post
      Author
  2. Hi Jeff,

    I just got a new computer and installed the latest SQLDeveloper 17.4.1 with bundled JDK. I cannot get it to start and there are no error messages. I cannot figure out how to debug this. I have used SQL developer for years without any major issues and have always been able to debug installation problems, but this one has me stumped.

    System: Windows 7
    SQL Developer 17.4.1
    Java: 1.8 bundled with SqlDeveloper

    I start sqldeveloper from the icon or command prompt and I see the Java icon for a few seconds and then it disappears. No errors. I am looking for a log file or something to help me debug the issue, but no joy yet. Any help would be appreciated.

    FYI – I copied the MSVCR100.dll into BIN just to make sure that was not the issue.

    Any thoughts?

    Thanks
    Bob

    1. Fixed my own problem. I don’t know why, but deleting everything and downloading again fixed my issue. Works fine now.

  3. i Jeff,

    I ran to similar problem when try to run SQL Developer version 17.4.0 (I downloaded it from the Oracle website yesterday). I have done the diagnostic steps above. Here are some details:
    i) Oracle Database 12c
    ii) my laptop is running Windows 10
    iii) SQL Developer version 17.4.0

    The funny thing is that all the while I was running SQL Developer (an older version) perfectly fine until recently I was prompted to upgrade my Java on my laptop. I noticed that the problems started happening after that. I downloaded the latest version of SQL Developer (17.4.0), but the problem persists.

    Custom UI class oracle.bali.ewt.olaf2.OracleLookAndFeel not found
    2018-01-10 11:42:27
    Full thread dump Java HotSpot(TM) 64-Bit Server VM (25.102-b14 mixed mode):

    “Flushing caches” #17 prio=1 os_prio=-2 tid=0x000000001bd4b800 nid=0x2340 in Object.wait() [0x000000001e6ff000]
    java.lang.Thread.State: TIMED_WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    at org.netbeans.Stamps$Worker.run(Stamps.java:872)
    – locked (a org.netbeans.Stamps$Worker)

    “Thread-2” #28 daemon prio=5 os_prio=0 tid=0x000000001bd4c000 nid=0xddc in Object.wait() [0x000000001e5ff000]
    java.lang.Thread.State: WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    – waiting on (a java.util.LinkedList)
    at java.lang.Object.wait(Object.java:502)
    at java.util.prefs.AbstractPreferences$EventDispatchThread.run(AbstractPreferences.java:1482)
    – locked (a java.util.LinkedList)

    “Inactive RequestProcessor thread [Was:Default RequestProcessor/org.netbeans.core.windows.WindowManagerImpl$4$1]” #27 daemon prio=1 os_prio=-2 tid=0x000000001bd4a800 nid=0x2e90 in Object.wait() [0x000000001e0ff000]
    java.lang.Thread.State: TIMED_WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    – waiting on (a java.lang.Object)
    at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2002)
    – locked (a java.lang.Object)

    “Inactive RequestProcessor thread [Was:Netigso Events/org.netbeans.core.netigso.Netigso$1]” #26 daemon prio=1 os_prio=-2 tid=0x000000001bd4a000 nid=0xb60 in Object.wait() [0x000000001dede000]
    java.lang.Thread.State: TIMED_WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    – waiting on (a java.lang.Object)
    at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2002)
    – locked (a java.lang.Object)

    “Inactive RequestProcessor thread [Was:NbStatusDisplayer/org.netbeans.core.NbStatusDisplayer$MessageImpl]” #25 daemon prio=1 os_prio=-2 tid=0x000000001bd48800 nid=0xf74 in Object.wait() [0x000000001dddf000]
    java.lang.Thread.State: TIMED_WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    – waiting on (a java.lang.Object)
    at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2002)
    – locked (a java.lang.Object)

    “Framework Event Dispatcher” #24 daemon prio=5 os_prio=0 tid=0x000000001bd47800 nid=0x1d14 in Object.wait() [0x000000001dcdf000]
    java.lang.Thread.State: WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    – waiting on (a org.eclipse.osgi.framework.eventmgr.EventManager$EventThread)
    at java.lang.Object.wait(Object.java:502)
    at org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.getNextEvent(EventManager.java:400)
    – locked (a org.eclipse.osgi.framework.eventmgr.EventManager$EventThread)
    at org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.run(EventManager.java:336)

    “State Data Manager” #23 daemon prio=5 os_prio=0 tid=0x000000001bd49000 nid=0x19f8 waiting on condition [0x000000001dbdf000]
    java.lang.Thread.State: TIMED_WAITING (sleeping)
    at java.lang.Thread.sleep(Native Method)
    at org.eclipse.osgi.internal.baseadaptor.StateManager.run(StateManager.java:297)
    at java.lang.Thread.run(Thread.java:745)

    “Framework Active Thread” #22 prio=5 os_prio=0 tid=0x000000001bd47000 nid=0x9d4 in Object.wait() [0x000000001d8df000]
    java.lang.Thread.State: TIMED_WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    at org.eclipse.osgi.framework.internal.core.Framework.run(Framework.java:1870)
    – locked (a org.eclipse.osgi.framework.internal.core.Framework)
    at java.lang.Thread.run(Thread.java:745)

    “Inactive RequestProcessor thread [Was:Default RequestProcessor/org.netbeans.core.CoreBridgeImpl$1]” #21 daemon prio=1 os_prio=-2 tid=0x000000001902d800 nid=0x22e0 in Object.wait() [0x000000001b63f000]
    java.lang.Thread.State: TIMED_WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    – waiting on (a java.lang.Object)
    at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2002)
    – locked (a java.lang.Object)

    “RequestProcessor queue manager” #20 daemon prio=5 os_prio=0 tid=0x0000000018da7000 nid=0x2e0c in Object.wait() [0x000000001b53e000]
    java.lang.Thread.State: TIMED_WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    – waiting on (a java.lang.Class for org.openide.util.RequestProcessor$TickTac)
    at org.openide.util.RequestProcessor$TickTac.obtainFirst(RequestProcessor.java:2282)
    – locked (a java.lang.Class for org.openide.util.RequestProcessor$TickTac)
    at org.openide.util.RequestProcessor$TickTac.run(RequestProcessor.java:2258)

    “Active Reference Queue Daemon” #18 daemon prio=1 os_prio=-2 tid=0x0000000018d4d800 nid=0xccc in Object.wait() [0x000000001ab3e000]
    java.lang.Thread.State: WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    – waiting on (a java.lang.ref.ReferenceQueue$Lock)
    at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:143)
    – locked (a java.lang.ref.ReferenceQueue$Lock)
    at org.openide.util.lookup.implspi.ActiveQueue$Impl.removeSuper(ActiveQueue.java:93)
    at org.openide.util.lookup.implspi.ActiveQueue$Daemon.run(ActiveQueue.java:131)

    “TimerQueue” #16 daemon prio=5 os_prio=0 tid=0x0000000018b4a800 nid=0x2270 runnable [0x0000000019e3e000]
    java.lang.Thread.State: TIMED_WAITING (parking)
    at sun.misc.Unsafe.park(Native Method)
    – parking to wait for (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
    at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
    at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)
    at java.util.concurrent.DelayQueue.take(DelayQueue.java:223)
    at javax.swing.TimerQueue.run(TimerQueue.java:174)
    at java.lang.Thread.run(Thread.java:745)

    “AWT-EventQueue-0” #15 prio=6 os_prio=0 tid=0x0000000018a78800 nid=0x1e88 waiting on condition [0x000000001989e000]
    java.lang.Thread.State: WAITING (parking)
    at sun.misc.Unsafe.park(Native Method)
    – parking to wait for (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
    at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
    at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
    at java.awt.EventQueue.getNextEvent(EventQueue.java:554)
    at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:170)
    at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
    at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
    at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)

    “AWT-Windows” #13 daemon prio=6 os_prio=0 tid=0x0000000018a72800 nid=0xe04 runnable [0x000000001979f000]
    java.lang.Thread.State: RUNNABLE
    at sun.awt.windows.WToolkit.eventLoop(Native Method)
    at sun.awt.windows.WToolkit.run(WToolkit.java:306)
    at java.lang.Thread.run(Thread.java:745)

    “AWT-Shutdown” #12 prio=5 os_prio=0 tid=0x0000000018ad6000 nid=0x6f8 in Object.wait() [0x000000001959f000]
    java.lang.Thread.State: WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    – waiting on (a java.lang.Object)
    at java.lang.Object.wait(Object.java:502)
    at sun.awt.AWTAutoShutdown.run(AWTAutoShutdown.java:295)
    – locked (a java.lang.Object)
    at java.lang.Thread.run(Thread.java:745)

    “Java2D Disposer” #11 daemon prio=10 os_prio=2 tid=0x0000000018ad5800 nid=0x1c44 in Object.wait() [0x000000001949f000]
    java.lang.Thread.State: WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    – waiting on (a java.lang.ref.ReferenceQueue$Lock)
    at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:143)
    – locked (a java.lang.ref.ReferenceQueue$Lock)
    at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:164)
    at sun.java2d.Disposer.run(Disposer.java:148)
    at java.lang.Thread.run(Thread.java:745)

    “Service Thread” #9 daemon prio=9 os_prio=0 tid=0x0000000018488800 nid=0x2aec runnable [0x0000000000000000]
    java.lang.Thread.State: RUNNABLE

    “C1 CompilerThread2” #8 daemon prio=9 os_prio=2 tid=0x0000000016b2c800 nid=0x26d8 waiting on condition [0x0000000000000000]
    java.lang.Thread.State: RUNNABLE

    “C2 CompilerThread1” #7 daemon prio=9 os_prio=2 tid=0x0000000016b29800 nid=0x2138 waiting on condition [0x0000000000000000]
    java.lang.Thread.State: RUNNABLE

    “C2 CompilerThread0” #6 daemon prio=9 os_prio=2 tid=0x0000000016b27000 nid=0x31c waiting on condition [0x0000000000000000]
    java.lang.Thread.State: RUNNABLE

    “Attach Listener” #5 daemon prio=5 os_prio=2 tid=0x0000000016b24800 nid=0x2cc4 runnable [0x0000000000000000]
    java.lang.Thread.State: RUNNABLE

    “Signal Dispatcher” #4 daemon prio=9 os_prio=2 tid=0x0000000016b23800 nid=0xc04 waiting on condition [0x0000000000000000]
    java.lang.Thread.State: RUNNABLE

    “Finalizer” #3 daemon prio=8 os_prio=1 tid=0x0000000016b0f800 nid=0x24c4 in Object.wait() [0x0000000017e6f000]
    java.lang.Thread.State: WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    – waiting on (a java.lang.ref.ReferenceQueue$Lock)
    at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:143)
    – locked (a java.lang.ref.ReferenceQueue$Lock)
    at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:164)
    at java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:209)

    “Reference Handler” #2 daemon prio=10 os_prio=2 tid=0x0000000004c75000 nid=0xa2c in Object.wait() [0x0000000017d6f000]
    java.lang.Thread.State: WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    – waiting on (a java.lang.ref.Reference$Lock)
    at java.lang.Object.wait(Object.java:502)
    at java.lang.ref.Reference.tryHandlePending(Reference.java:191)
    – locked (a java.lang.ref.Reference$Lock)
    at java.lang.ref.Reference$ReferenceHandler.run(Reference.java:153)

    “main” #1 prio=5 os_prio=0 tid=0x0000000004b85800 nid=0xcd0 waiting on condition [0x0000000000000000]
    java.lang.Thread.State: RUNNABLE

    “VM Thread” os_prio=2 tid=0x0000000016ae8800 nid=0x1e04 runnable

    “GC task thread#0 (ParallelGC)” os_prio=0 tid=0x0000000004b9b000 nid=0xb30 runnable

    “GC task thread#1 (ParallelGC)” os_prio=0 tid=0x0000000004b9c800 nid=0x5d8 runnable

    “GC task thread#2 (ParallelGC)” os_prio=0 tid=0x0000000004b9e000 nid=0x3214 runnable

    “GC task thread#3 (ParallelGC)” os_prio=0 tid=0x0000000004b9f800 nid=0x2e84 runnable

    “VM Periodic Task Thread” os_prio=2 tid=0x00000000184b3800 nid=0x6ac waiting on condition

    JNI global references: 912

    Heap
    PSYoungGen total 71680K, used 47585K [0x00000000ef580000, 0x00000000f8180000, 0x0000000100000000)
    eden space 66560K, 71% used [0x00000000ef580000,0x00000000f23f8608,0x00000000f3680000)
    from space 5120K, 0% used [0x00000000f3680000,0x00000000f3680000,0x00000000f3b80000)
    to space 5120K, 0% used [0x00000000f7c80000,0x00000000f7c80000,0x00000000f8180000)
    ParOldGen total 87552K, used 10143K [0x00000000ce000000, 0x00000000d3580000, 0x00000000ef580000)
    object space 87552K, 11% used [0x00000000ce000000,0x00000000ce9e7d00,0x00000000d3580000)
    Metaspace used 24415K, capacity 25428K, committed 25728K, reserved 1071104K
    class space used 2739K, capacity 3142K, committed 3200K, reserved 1048576K

    ————–
    Please help! Thanks!

    1. thatjeffsmith Post
      Author

      Sorry, this got into my SPAM folder, just now seeing it.

      Please delete your install.

      Please delete the system17.4 folder under your Windows OS User’s AppData, Roaming Profiles directory.

      Then, re-extract SQLDev 17.4 to a FRESH folder. You might want to use a 3rd party Zip tool, some folks have issues with Windows’…

      Then try running it again.

  4. SQL Developer crashes randomly, sometimes when doing nothing at all within the application. It appears these issues start after a Windows/Java update.

    Oracle SQL Developer v. 4.1.5.21
    Build Main-21.78
    Java (TM) Platform 1.8.0_102
    Oracle IDE 4.1.2.21.78
    Windows 7 64bit
    Instant Client 12.1.0.2.0

    Custom UI class oracle.bali.ewt.olaf2.OracleLookAndFeel not on classpath.

    LOAD TIME : 4382017-06-14 11:18:13
    Full thread dump Java HotSpot(TM) 64-Bit Server VM (25.102-b14 mixed mode):

    “Inactive RequestProcessor thread [Was:Folder recognizer/org.openide.loaders.Fol
    derList$ListTask]” #47 daemon prio=1 os_prio=-2 tid=0x000000001df11800 nid=0x17c
    4 in Object.wait() [0x000000002132f000]
    java.lang.Thread.State: TIMED_WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java
    :1982)
    – locked (a java.lang.Object)

    “WaitCursor-Timer” #39 prio=6 os_prio=0 tid=0x0000000016326000 nid=0x5f94 in Obj
    ect.wait() [0x00000000204af000]
    java.lang.Thread.State: WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    at java.lang.Object.wait(Object.java:502)
    at java.util.TimerThread.mainLoop(Timer.java:526)
    – locked (a java.util.TaskQueue)
    at java.util.TimerThread.run(Timer.java:505)

    “pool-2-thread-1” #38 prio=5 os_prio=0 tid=0x0000000016324800 nid=0x5b7c waiting
    on condition [0x00000000203af000]
    java.lang.Thread.State: WAITING (parking)
    at sun.misc.Unsafe.park(Native Method)
    – parking to wait for (a java.util.concurrent.Sync
    hronousQueue$TransferStack)
    at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
    at java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(Sync
    hronousQueue.java:458)
    at java.util.concurrent.SynchronousQueue$TransferStack.transfer(Synchron
    ousQueue.java:362)
    at java.util.concurrent.SynchronousQueue.take(SynchronousQueue.java:924)

    at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.ja
    va:1067)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.
    java:1127)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor
    .java:617)
    at java.lang.Thread.run(Thread.java:745)

    “Thread-8” #35 daemon prio=5 os_prio=0 tid=0x0000000016322000 nid=0x15ac in Obje
    ct.wait() [0x000000001feaf000]
    java.lang.Thread.State: WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    – waiting on (a java.util.LinkedList)
    at java.lang.Object.wait(Object.java:502)
    at java.util.prefs.AbstractPreferences$EventDispatchThread.run(AbstractP
    references.java:1482)
    – locked (a java.util.LinkedList)

    “Scheduler” #34 daemon prio=5 os_prio=0 tid=0x0000000016321800 nid=0x5f88 in Obj
    ect.wait() [0x000000001f65f000]
    java.lang.Thread.State: WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    at java.lang.Object.wait(Object.java:502)
    at oracle.dbtools.raptor.backgroundTask.TaskLinkedList.takeNextTask(Task
    LinkedList.java:47)
    – locked (a oracle.dbtools.raptor.backgroundTask.Ta
    skLinkedList)
    at oracle.dbtools.raptor.backgroundTask.RaptorTaskManager$SchedulerThrea
    d.run(RaptorTaskManager.java:537)

    “Log Poller” #33 prio=1 os_prio=-2 tid=0x0000000016320800 nid=0x58c0 waiting on
    condition [0x000000001e91f000]
    java.lang.Thread.State: WAITING (parking)
    at sun.misc.Unsafe.park(Native Method)
    – parking to wait for (a java.util.concurrent.lock
    s.AbstractQueuedSynchronizer$ConditionObject)
    at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
    at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject
    .await(AbstractQueuedSynchronizer.java:2039)
    at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.jav
    a:442)
    at oracle.ide.log.QueuedLoggingHandler.take(QueuedLoggingHandler.java:60
    )
    at oracle.ideimpl.log.TabbedLogManager$4.run(TabbedLogManager.java:333)
    at java.lang.Thread.run(Thread.java:745)

    “Inactive RequestProcessor thread [Was:Folder recognizer/org.openide.loaders.Fol
    derList$ListTask]” #32 daemon prio=1 os_prio=-2 tid=0x0000000016118800 nid=0x595
    4 in Object.wait() [0x000000001d48f000]
    java.lang.Thread.State: TIMED_WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java
    :1982)
    – locked (a java.lang.Object)

    “TimedCache-Timer” #28 daemon prio=5 os_prio=0 tid=0x000000001611d800 nid=0x5de8
    in Object.wait() [0x000000001c6df000]
    java.lang.Thread.State: TIMED_WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    – waiting on (a java.util.TaskQueue)
    at java.util.TimerThread.mainLoop(Timer.java:552)
    – locked (a java.util.TaskQueue)
    at java.util.TimerThread.run(Timer.java:505)

    “Framework Event Dispatcher” #24 daemon prio=5 os_prio=0 tid=0x000000001611c000
    nid=0x5cc0 in Object.wait() [0x000000001b2ff000]
    java.lang.Thread.State: WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    at java.lang.Object.wait(Object.java:502)
    at org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.getNextE
    vent(EventManager.java:400)
    – locked (a org.eclipse.osgi.framework.eventmgr.Eve
    ntManager$EventThread)
    at org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.run(Even
    tManager.java:336)

    “Inactive RequestProcessor thread [Was:TimedSoftReference/org.openide.util.Timed
    SoftReference]” #23 daemon prio=1 os_prio=-2 tid=0x000000001611b800 nid=0x4abc i
    n Object.wait() [0x000000001afff000]
    java.lang.Thread.State: TIMED_WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java
    :1982)
    – locked (a java.lang.Object)

  5. Jeff, I tried your process above but no joy.

    I have a laptop with docking station that switches to WiFi as soon as it’s disconnected.

    SQL*Plus sessions survive, but SQL Developer seems to hang. As I say, can’t get logging messages by pressing Crtl&Break. Probably a JDBC thing rather than SQL Dev itself, but it also seems to hang through the day with connections left open and no physical disconnection. Only way out is to kill it with Task Manager.

    Version 4.1.2.20 Build MAIN-20.64

    java version “1.8.0_73”

    Windows 7 Enterprise SP1 connecting to Oracle 11.2.0.4

    Regards, JT

    1. Seems I can get a I/O socket error and Closed Connection in SQL*Developer.

      Interestingly, in the same “test” a SQLcl connection survived. SQLcl did display the following error when the connection switched, but the query still ran again when reconnected to the physical ethernet.

      SQLcl: Release 4.2.0.15.295.1605 RC

      Exception in thread “AWT-EventQueue-0” java.lang.ClassCastException: sun.java2d.HeadlessGraphicsEnvironment cannot be cast to sun.awt.Win32GraphicsEnvironment
      at sun.awt.windows.WToolkit$3.run(Unknown Source)
      at java.awt.event.InvocationEvent.dispatch(Unknown Source)
      at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
      at java.awt.EventQueue.access$500(Unknown Source)
      at java.awt.EventQueue$3.run(Unknown Source)
      at java.awt.EventQueue$3.run(Unknown Source)
      at java.security.AccessController.doPrivileged(Native Method)
      at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
      at java.awt.EventQueue.dispatchEvent(Unknown Source)
      at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
      at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
      at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
      at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
      at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
      at java.awt.EventDispatchThread.run(Unknown Source)

    2. thatjeffsmith Post
      Author
  6. How can i fix this error?

    When I apply a filter to any object in the connections window returns me error and shows me the list of filtered objects.

    This utility is very good especially when working with ERP Oracle EBS 12.1

    1. thatjeffsmith Post
      Author
      1. Hello Jeff.

        When open Connections view, i drill down to packages and applied filter, return this error:

        An error was encountered performing the request operation:

        ORA-01460: unimplemented or unreasonable conversion request
        01460. 00000 – “unimplemented or unreasonable conversion request ”
        *Cause:
        *Action:
        Vendor code 1460

        The filter applied is:

        Select the filter criteria Match Any
        Name Like FND_SELAUDIT_LOG

        This filter work in version 4.0.3 but in 4.1* not work

      2. thatjeffsmith Post
        Author
      3. The version of database is: 9.2.0.8.0, but i don’t change, ’cause is an Instance on my work, but the error only occurred in version minor of 10g database, thanks for your attention.

      4. thatjeffsmith Post
        Author

        For that database, you’ll need to use a copy of SQLDev 4.0, or if you want, you could try a thick connection in 4.1 using an 11203 Oracle Instant Client.

  7. Hi Jeff!

    Sorry about reviving this old post but I needed it just today and I think here would be the best place to ask.

    I’m facing problems with freezing (I already found some post about it on OTN but none helped me). So I decided to run the problem myself and send you guys the log info.

    When I get to the freeze, I go to the CMD window and hit Ctrl+Pause as you instructed in the step-by-step above, but surprisingly nothing happens. Neither log nor line break or anything but the only line showing the startup load time.

    I can get to the freeze very easy but can’t get the precious info you guys may need to find what the real problem is.

    1. thatjeffsmith Post
      Author

      Let’s try something else Bruno –

      When SQL Developer ‘hangs’ – go into the JDK/bin directory and run ‘jstack’

      When it comes up, attach to the SQL Developer process ID (PID)

      That should give you the entire ‘stack’ and hopefully shed some light on what’s going on.

      1. Great! It worked, thanks!

        I’ll be attaching it to the discussion on OTN Forum

        Hope it helps 🙂

  8. yes when i tested OCI, i used OCI thick driver connect option in SQL Developer, using JDBC gave me the same hang issue (but without any trace) . I just check the disabling of the OOB on JDBC and it seems better (AddVMOption -Doracle.net.disableOob=true).
    Have to confirm this during peek load. This was an old bug (9373409), and i first think it was corrected in the 3.2 release, but let see … Thanks for your support , will try with MOS for continue.

  9. Hello,
    In our company we’re working a lot with SqlDeveloper and get fun with it.
    Since somedays we move our development database to a new server, SQLDeveloper hang when we tried to do a Quick DDL from VIEW .
    Once it is in his loop we are unable to close the connection or quit the program without killing it or sometimes we got “Erreur d’E/S: Connection reset” (sorry french language).
    Our release is now 3.2.20.09 with JDK 1.6.0_24 and it was the same with (3.1) .
    Do you have any clue for us to investigate ?
    I got the trace from the cmd window as you spécified in your post and can send it to you if you give me your email.
    Thanks for answering
    Regards

    1. thatjeffsmith Post
      Author

      Do you get the same behavior if you simply go to the ‘SQL’ page in the view editor?

      My first guess is what we’re querying a data dictionary view and the database doesn’t like it. You could ask your dba when the last time they collected stats on the data dictionary. You could also run SQLDev in debug mode and see what query is causing the db to get upset.

      1. Yes same behaviour from “SQL” or from select dbms_metadat.getddl() , sounds more related to network configuration on WAN , is there any issue that you know ? or any parameter settings somewhere ?

      2. thatjeffsmith Post
        Author
      3. I done that getddl() call directly connected to the db using sqlplus and it works.
        I tried with an OCI connection and put trace on it , as soon as the result of the getddl is sent back to the client error like this one is seen :
        ///////////////////////////////////////////////////////////////
        Error found. Error Stack follows:
        id:0
        Operation code:68
        NS Error 1:12547
        NS Error 2:12560
        NT Generic Error:517
        Protocol Error:104
        OS Error:0
        NS & NT Errors Translation
        12547, 00000 “TNS:lost contact”
        // *Cause: Partner has unexpectedly gone away, usually during process
        // startup.
        // *Action: Investigate partner application for abnormal termination. On an
        // Interchange, this can happen if the machine is overloaded.
        /
        12560, 00000 “TNS:protocol adapter error”
        // *Cause: A generic protocol adapter error occurred.
        // *Action: Check addresses used for proper protocol specification. Before
        // reporting this error, look at the error stack and check for lower level
        // transport errors.For further details, turn on tracing and reexecute the
        // operation. Turn off tracing when the operation is complete.
        /
        00517, 00000 “Lost contact”
        // *Cause: Partner has unexpectedly gone away.
        // *Action: Investigate partner application for abnormal termination.
        /

      4. thatjeffsmith Post
        Author

        Interesting…are you using the OCI thick driver connect option in SQL Developer? If so, if you disable it and go in straight with JDBC, does it ‘work?’

        Either way I’d consider opening a ticket with MOS.

  10. Completion insight doesn’t work. Here is the version info from help/about.

    Java(TM) Platform 1.6.0_24
    Oracle IDE 3.1.07.42
    Versioning Support 3.1.07.42
    XP

    More version info.

    select *
    from v$version;

    Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 – 64bi
    PL/SQL Release 10.2.0.4.0 – Production
    “CORE 10.2.0.4.0 Production”
    TNS for Solaris: Version 10.2.0.4.0 – Production
    NLSRTL Version 10.2.0.4.0 – Production

    FYI: My java -version is 1.4.

    I didn’t contain my SQL as it fails on everything.

    debugging info:

    java.lang.Thread.State: WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    – waiting on (a java.util.TaskQueue)
    at java.lang.Object.wait(Object.java:485)
    at java.util.TimerThread.mainLoop(Timer.java:483)
    – locked (a java.util.TaskQueue)
    at java.util.TimerThread.run(Timer.java:462)

    “Swing-Shell” daemon prio=6 tid=0x406d5400 nid=0x1594 waiting on condition [0x42
    99f000]
    java.lang.Thread.State: WAITING (parking)
    at sun.misc.Unsafe.park(Native Method)
    – parking to wait for (a java.util.concurrent.locks.Abstra
    ctQueuedSynchronizer$ConditionObject)
    at java.util.concurrent.locks.LockSupport.park(LockSupport.java:158)
    at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject
    .await(AbstractQueuedSynchronizer.java:1987)
    at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.jav
    a:399)
    at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.ja
    va:947)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor
    .java:907)
    at sun.awt.shell.Win32ShellFolderManager2$ComInvoker$3.run(Win32ShellFol
    derManager2.java:492)
    at java.lang.Thread.run(Thread.java:662)

    “WaitCursor-Timer” prio=6 tid=0x4064d800 nid=0x5f4 in Object.wait() [0x4289f000]

    java.lang.Thread.State: WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    – waiting on (a java.util.TaskQueue)
    at java.lang.Object.wait(Object.java:485)
    at java.util.TimerThread.mainLoop(Timer.java:483)
    – locked (a java.util.TaskQueue)
    at java.util.TimerThread.run(Timer.java:462)

    “Background Parser” prio=6 tid=0x40507800 nid=0x25c waiting on condition [0x421d
    f000]
    java.lang.Thread.State: TIMED_WAITING (sleeping)
    at java.lang.Thread.sleep(Native Method)
    at oracle.dbtools.raptor.plsql.BackgroundParser$1.construct(BackgroundPa
    rser.java:137)
    at oracle.dbtools.raptor.utils.NamedSwingWorker$2.run(NamedSwingWorker.j
    ava:115)
    at java.lang.Thread.run(Thread.java:662)

    “Background Parser” prio=6 tid=0x404fe400 nid=0x6cc waiting on condition [0x420d
    f000]
    java.lang.Thread.State: TIMED_WAITING (sleeping)
    at java.lang.Thread.sleep(Native Method)
    at oracle.dbtools.raptor.plsql.BackgroundParser$1.construct(BackgroundPa
    rser.java:137)
    at oracle.dbtools.raptor.utils.NamedSwingWorker$2.run(NamedSwingWorker.j
    ava:115)
    at java.lang.Thread.run(Thread.java:662)

    “Background Parser” prio=6 tid=0x403d0400 nid=0x1b2c waiting on condition [0x41f
    df000]
    java.lang.Thread.State: TIMED_WAITING (sleeping)
    at java.lang.Thread.sleep(Native Method)
    at oracle.dbtools.raptor.plsql.BackgroundParser$1.construct(BackgroundPa
    rser.java:137)
    at oracle.dbtools.raptor.utils.NamedSwingWorker$2.run(NamedSwingWorker.j
    ava:115)
    at java.lang.Thread.run(Thread.java:662)

    “TextBufferScavenger” prio=6 tid=0x403c8c00 nid=0xb54 in Object.wait() [0x41ddf0
    00]
    java.lang.Thread.State: WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    – waiting on (a java.lang.ref.ReferenceQueue$Lock)
    at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:118)
    – locked (a java.lang.ref.ReferenceQueue$Lock)
    at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:134)
    at oracle.ide.model.TextNode$FacadeBufferReference$PollingThread.run(Tex
    tNode.java:1949)

    “Timer queue for AWT thread” daemon prio=6 tid=0x4032a400 nid=0x1a5c in Object.w
    ait() [0x41cdf000]
    java.lang.Thread.State: WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    – waiting on (a java.lang.Object)
    at java.lang.Object.wait(Object.java:485)
    at ice.util.awt.TimedAWTExecutor.nextElem(TimedAWTExecutor.java:108)
    – locked (a java.lang.Object)
    at ice.util.awt.TimedAWTExecutor.runScheduler(TimedAWTExecutor.java:130)

    at ice.util.awt.TimedAWTExecutor$1.run(TimedAWTExecutor.java:19)

    “Native Directory Watcher” prio=2 tid=0x3e79f800 nid=0x11f0 runnable [0x41bdf000
    ]
    java.lang.Thread.State: RUNNABLE
    at oracle.ide.natives.NativeHandler.enterWatcherThread(Native Method)
    at oracle.ide.natives.NativeHandler$2.run(NativeHandler.java:252)
    at java.lang.Thread.run(Thread.java:662)

    “BaseTreeExplorer.NodeOpeningExecutor” prio=6 tid=0x3ec39400 nid=0x1b88 waiting
    on condition [0x4271f000]
    java.lang.Thread.State: WAITING (parking)
    at sun.misc.Unsafe.park(Native Method)
    – parking to wait for (a java.util.concurrent.locks.Abstra
    ctQueuedSynchronizer$ConditionObject)
    at java.util.concurrent.locks.LockSupport.park(LockSupport.java:158)
    at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject
    .await(AbstractQueuedSynchronizer.java:1987)
    at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.jav
    a:399)
    at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.ja
    va:947)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor
    .java:907)
    at java.lang.Thread.run(Thread.java:662)

    “pool-2-thread-1” prio=6 tid=0x3e989400 nid=0x31c waiting on condition [0x4261f0
    00]
    java.lang.Thread.State: WAITING (parking)
    at sun.misc.Unsafe.park(Native Method)
    – parking to wait for (a java.util.concurrent.SynchronousQ
    ueue$TransferStack)
    at java.util.concurrent.locks.LockSupport.park(LockSupport.java:158)
    at java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(Sync
    hronousQueue.java:422)
    at java.util.concurrent.SynchronousQueue$TransferStack.transfer(Synchron
    ousQueue.java:323)
    at java.util.concurrent.SynchronousQueue.take(SynchronousQueue.java:857)

    at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.ja
    va:947)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor
    .java:907)
    at java.lang.Thread.run(Thread.java:662)

    “Scheduler” daemon prio=6 tid=0x3ef15000 nid=0x15c8 in Object.wait() [0x413af000
    ]
    java.lang.Thread.State: WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    – waiting on (a oracle.dbtools.raptor.backgroundTask.TaskLi
    nkedList)
    at java.lang.Object.wait(Object.java:485)
    at oracle.dbtools.raptor.backgroundTask.TaskLinkedList.takeNextTask(Task
    LinkedList.java:47)
    – locked (a oracle.dbtools.raptor.backgroundTask.TaskLinked
    List)
    at oracle.dbtools.raptor.backgroundTask.RaptorTaskManager$SchedulerThrea
    d.run(RaptorTaskManager.java:444)

    “TimerQueue” daemon prio=6 tid=0x3ecc7800 nid=0xe54 in Object.wait() [0x42e7f000
    ]
    java.lang.Thread.State: TIMED_WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    at javax.swing.TimerQueue.run(TimerQueue.java:232)
    – locked (a javax.swing.TimerQueue)
    at java.lang.Thread.run(Thread.java:662)

    “Thread-5” daemon prio=6 tid=0x3e473400 nid=0x1850 runnable [0x414af000]
    java.lang.Thread.State: RUNNABLE
    at sun.print.Win32PrintServiceLookup.notifyPrinterChange(Native Method)
    at sun.print.Win32PrintServiceLookup.access$100(Win32PrintServiceLookup.
    java:32)
    at sun.print.Win32PrintServiceLookup$PrinterChangeListener.run(Win32Prin
    tServiceLookup.java:302)

    “ChangeSetService” prio=2 tid=0x3ef51400 nid=0x910 in Object.wait() [0x412af000]

    java.lang.Thread.State: WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    – waiting on (a oracle.jdevimpl.vcs.changeset.ChangeSetServ
    ice)
    at java.lang.Object.wait(Object.java:485)
    at oracle.jdevimpl.vcs.changeset.ChangeSetService.awaitEvents(ChangeSetS
    ervice.java:178)
    – locked (a oracle.jdevimpl.vcs.changeset.ChangeSetService)

    at oracle.jdevimpl.vcs.changeset.ChangeSetService.eventLoop(ChangeSetSer
    vice.java:199)
    at oracle.jdevimpl.vcs.changeset.ChangeSetService.access$200(ChangeSetSe
    rvice.java:56)
    at oracle.jdevimpl.vcs.changeset.ChangeSetService$2.run(ChangeSetService
    .java:138)
    at java.lang.Thread.run(Thread.java:662)

    “TimedCache-Timer” daemon prio=6 tid=0x3da6d800 nid=0x1e44 in Object.wait() [0x3
    e75f000]
    java.lang.Thread.State: WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    at java.lang.Object.wait(Object.java:485)
    at java.util.TimerThread.mainLoop(Timer.java:483)
    – locked (a java.util.TaskQueue)
    at java.util.TimerThread.run(Timer.java:462)

    “JarIndex Timer” daemon prio=6 tid=0x3da3f400 nid=0x1430 in Object.wait() [0x3e2
    5f000]
    java.lang.Thread.State: TIMED_WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    at java.util.TimerThread.mainLoop(Timer.java:509)
    – locked (a java.util.TaskQueue)
    at java.util.TimerThread.run(Timer.java:462)

    “AWT-EventQueue-0” prio=6 tid=0x3da12400 nid=0x1d5c in Object.wait() [0x3e02f000
    ]
    java.lang.Thread.State: WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    at java.lang.Object.wait(Object.java:485)
    at java.awt.EventQueue.getNextEvent(EventQueue.java:485)
    – locked (a java.awt.EventQueue)
    at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThre
    ad.java:236)
    at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.
    java:184)
    at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThre
    ad.java:174)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)

    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)

    at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)

    “AWT-Windows” daemon prio=6 tid=0x3d9f3000 nid=0x1984 runnable [0x3de1f000]
    java.lang.Thread.State: RUNNABLE
    at sun.awt.windows.WToolkit.eventLoop(Native Method)
    at sun.awt.windows.WToolkit.run(WToolkit.java:293)
    at java.lang.Thread.run(Thread.java:662)

    “AWT-Shutdown” prio=6 tid=0x3d9f2400 nid=0x184c in Object.wait() [0x3dd1f000]
    java.lang.Thread.State: WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    at java.lang.Object.wait(Object.java:485)
    at sun.awt.AWTAutoShutdown.run(AWTAutoShutdown.java:265)
    – locked (a java.lang.Object)
    at java.lang.Thread.run(Thread.java:662)

    “Java2D Disposer” daemon prio=10 tid=0x3d9e1400 nid=0xef8 in Object.wait() [0x3d
    c1f000]
    java.lang.Thread.State: WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:118)
    – locked (a java.lang.ref.ReferenceQueue$Lock)
    at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:134)
    at sun.java2d.Disposer.run(Disposer.java:127)
    at java.lang.Thread.run(Thread.java:662)

    “Low Memory Detector” daemon prio=6 tid=0x011f1400 nid=0x100c runnable [0x000000
    00]
    java.lang.Thread.State: RUNNABLE

    “CompilerThread0” daemon prio=10 tid=0x011eb000 nid=0x1fe8 waiting on condition
    [0x00000000]
    java.lang.Thread.State: RUNNABLE

    “Attach Listener” daemon prio=10 tid=0x011e9800 nid=0x1d1c runnable [0x00000000]

    java.lang.Thread.State: RUNNABLE

    “Signal Dispatcher” daemon prio=10 tid=0x011e8400 nid=0x130c waiting on conditio
    n [0x00000000]
    java.lang.Thread.State: RUNNABLE

    “Finalizer” daemon prio=8 tid=0x011da400 nid=0x1c2c in Object.wait() [0x3d36f000
    ]
    java.lang.Thread.State: WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:118)
    – locked (a java.lang.ref.ReferenceQueue$Lock)
    at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:134)
    at java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:159)

    “Reference Handler” daemon prio=10 tid=0x011d5c00 nid=0x16a0 in Object.wait() [0
    x3d26f000]
    java.lang.Thread.State: WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    at java.lang.Object.wait(Object.java:485)
    at java.lang.ref.Reference$ReferenceHandler.run(Reference.java:116)
    – locked (a java.lang.ref.Reference$Lock)

    “main” prio=6 tid=0x00bc7400 nid=0x1fe4 waiting on condition [0x00000000]
    java.lang.Thread.State: RUNNABLE

    “VM Thread” prio=10 tid=0x011d1c00 nid=0x1050 runnable

    “VM Periodic Task Thread” prio=10 tid=0x01204000 nid=0x1728 waiting on condition

    JNI global references: 2687

    Heap
    def new generation total 39424K, used 21691K [0x03370000, 0x05e30000, 0x108c0
    000)
    eden space 35072K, 61% used [0x03370000, 0x0489edb8, 0x055b0000)
    from space 4352K, 0% used [0x059f0000, 0x059f0000, 0x05e30000)
    to space 4352K, 0% used [0x055b0000, 0x055b0000, 0x059f0000)
    tenured generation total 87424K, used 33620K [0x108c0000, 0x15e20000, 0x2b370
    000)
    the space 87424K, 38% used [0x108c0000, 0x12995188, 0x12995200, 0x15e20000)
    compacting perm gen total 57856K, used 57633K [0x2b370000, 0x2ebf0000, 0x3b370
    000)
    the space 57856K, 99% used [0x2b370000, 0x2ebb8568, 0x2ebb8600, 0x2ebf0000)
    No shared spaces configured.

    I also did the debug and here it is.

    1. thatjeffsmith Post
      Author

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