Spark Screen goes Black in Windows 7

WesK_Miller · March 8, 2016, 12:51pm

Have an issue with the Spark Screen in Windows 7 32bit going black after it has been running awhile or after computer is locked then unlocked.

Have to use task manager to end spark. Will then run okay for a bit , but then black screen comes back.

Anyone know of a solution to stop black screen?

wroot · March 8, 2016, 2:39pm

Which Spark version?

WesK_Miller · March 8, 2016, 7:05pm

Tried a couple of Versions and all have the issue.

Spark: 2.5.8 , 2.70 and 2.7.5

wroot · March 8, 2016, 7:24pm

Well, i have no clues. Haven’t seen this too often. I think only once, when Spark was hanging on a system very low on resources. Might be that some other application causes this or say video driver. You can post your errors log here. C:\Users\user\AppData\Roaming\Spark\logs

WesK_Miller · March 9, 2016, 1:42pm

Thank You for your assistance with this issue,

Here is the Error Log for this Year:

Dec 3, 2015 2:40:55 PM org.jivesoftware.spark.util.log.Log error
SEVERE:
java.lang.NumberFormatException: null
at java.lang.Integer.parseInt(Unknown Source)
at java.lang.Integer.parseInt(Unknown Source)
at org.jivesoftware.sparkimpl.plugin.layout.LayoutSettingsManager.load(LayoutSetti ngsManager.java:155)
at org.jivesoftware.sparkimpl.plugin.layout.LayoutSettingsManager.getLayoutSetting s(LayoutSettingsManager.java:56)
at org.jivesoftware.spark.ui.ChatFrame.(ChatFrame.java:99)
at org.jivesoftware.MainWindow.(MainWindow.java:139)
at org.jivesoftware.MainWindow.getInstance(MainWindow.java:124)
at org.jivesoftware.LoginDialog$2.run(LoginDialog.java:1150)
at java.awt.event.InvocationEvent.dispatch(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)
Feb 29, 2016 3:58:33 PM org.jivesoftware.spark.util.log.Log error
SEVERE:
java.lang.NumberFormatException: null
at java.lang.Integer.parseInt(Unknown Source)
at java.lang.Integer.parseInt(Unknown Source)
at org.jivesoftware.sparkimpl.plugin.layout.LayoutSettingsManager.load(LayoutSetti ngsManager.java:155)
at org.jivesoftware.sparkimpl.plugin.layout.LayoutSettingsManager.getLayoutSetting s(LayoutSettingsManager.java:56)
at org.jivesoftware.spark.ui.ChatFrame.(ChatFrame.java:99)
at org.jivesoftware.MainWindow.(MainWindow.java:139)
at org.jivesoftware.MainWindow.getInstance(MainWindow.java:124)
at org.jivesoftware.LoginDialog$2.run(LoginDialog.java:1150)
at java.awt.event.InvocationEvent.dispatch(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)
Mar 03, 2016 2:51:03 PM org.jivesoftware.spark.util.log.Log error
SEVERE: Closing Group Chat Room error.
java.lang.IllegalStateException: Not connected to server.
at org.jivesoftware.smack.XMPPConnection.sendPacket(XMPPConnection.java:491)
at org.jivesoftware.smackx.muc.MultiUserChat.leave(MultiUserChat.java:540)
at org.jivesoftware.spark.ui.rooms.GroupChatRoom.leaveChatRoom(GroupChatRoom.java: 561)
at org.jivesoftware.spark.ui.ChatContainer.cleanupChatRoom(ChatContainer.java:552)
at org.jivesoftware.spark.ui.ChatContainer.access$000(ChatContainer.java:91)
at org.jivesoftware.spark.ui.ChatContainer$1.tabRemoved(ChatContainer.java:124)
at org.jivesoftware.spark.component.tabbedPane.SparkTabbedPane.fireTabRemoved(Spar kTabbedPane.java:335)
at org.jivesoftware.spark.component.tabbedPane.SparkTabbedPane.close(SparkTabbedPa ne.java:360)
at org.jivesoftware.spark.ui.ChatContainer.closeTab(ChatContainer.java:820)
at org.jivesoftware.spark.ui.ChatContainer.closeAllChatRooms(ChatContainer.java:58 6)
at org.jivesoftware.spark.ui.ChatContainer$17.windowClosing(ChatContainer.java:127 4)
at java.awt.AWTEventMulticaster.windowClosing(Unknown Source)
at java.awt.AWTEventMulticaster.windowClosing(Unknown Source)
at java.awt.Window.processWindowEvent(Unknown Source)
at javax.swing.JFrame.processWindowEvent(Unknown Source)
at java.awt.Window.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Window.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at com.jtattoo.plaf.BaseTitlePane.close(BaseTitlePane.java:295)
at com.jtattoo.plaf.BaseTitlePane$CloseAction.actionPerformed(BaseTitlePane.java:5 68)
at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)
at com.jtattoo.plaf.BaseButtonListener.mouseReleased(BaseButtonListener.java:60)
at java.awt.Component.processMouseEvent(Unknown Source)
at javax.swing.JComponent.processMouseEvent(Unknown Source)
at java.awt.Component.processEvent(Unknown Source)
at java.awt.Container.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Window.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$300(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$1.doIntersectionPrivilege(Unknown Source)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue$4.run(Unknown Source)
at java.awt.EventQueue$4.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.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)

Mar 03, 2016 2:51:04 PM org.jivesoftware.spark.util.log.Log error
SEVERE: Closing Group Chat Room error.
java.lang.IllegalStateException: Not connected to server.
at org.jivesoftware.smack.XMPPConnection.sendPacket(XMPPConnection.java:491)
at org.jivesoftware.smackx.muc.MultiUserChat.leave(MultiUserChat.java:540)
at org.jivesoftware.spark.ui.rooms.GroupChatRoom.leaveChatRoom(GroupChatRoom.java: 561)
at org.jivesoftware.spark.ui.ChatContainer.cleanupChatRoom(ChatContainer.java:552)
at org.jivesoftware.spark.ui.ChatContainer.access$000(ChatContainer.java:91)
at org.jivesoftware.spark.ui.ChatContainer$1.tabRemoved(ChatContainer.java:124)
at org.jivesoftware.spark.component.tabbedPane.SparkTabbedPane.fireTabRemoved(Spar kTabbedPane.java:335)
at org.jivesoftware.spark.component.tabbedPane.SparkTabbedPane.close(SparkTabbedPa ne.java:360)
at org.jivesoftware.spark.ui.ChatContainer.closeTab(ChatContainer.java:820)
at org.jivesoftware.spark.ui.ChatContainer.closeAllChatRooms(ChatContainer.java:58 6)
at org.jivesoftware.spark.ui.ChatContainer$17.windowClosing(ChatContainer.java:127 4)
at java.awt.AWTEventMulticaster.windowClosing(Unknown Source)
at java.awt.AWTEventMulticaster.windowClosing(Unknown Source)
at java.awt.Window.processWindowEvent(Unknown Source)
at javax.swing.JFrame.processWindowEvent(Unknown Source)
at java.awt.Window.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Window.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at com.jtattoo.plaf.BaseTitlePane.close(BaseTitlePane.java:295)
at com.jtattoo.plaf.BaseTitlePane$CloseAction.actionPerformed(BaseTitlePane.java:5 68)
at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)
at com.jtattoo.plaf.BaseButtonListener.mouseReleased(BaseButtonListener.java:60)
at java.awt.Component.processMouseEvent(Unknown Source)
at javax.swing.JComponent.processMouseEvent(Unknown Source)
at java.awt.Component.processEvent(Unknown Source)
at java.awt.Container.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Window.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$300(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$1.doIntersectionPrivilege(Unknown Source)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue$4.run(Unknown Source)
at java.awt.EventQueue$4.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.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)

Mar 08, 2016 6:50:18 AM org.jivesoftware.spark.util.log.Log error
SEVERE:
java.lang.IllegalStateException: Not connected to server.
at org.jivesoftware.smack.XMPPConnection.sendPacket(XMPPConnection.java:491)
at org.jivesoftware.smackx.ServiceDiscoveryManager.discoverInfo(ServiceDiscoveryMa nager.java:547)
at org.jivesoftware.phone.client.PhoneClient.isPhoneEnabled(PhoneClient.java:291)
at org.jivesoftware.sparkimpl.plugin.phone.PhonePlugin$3.chatRoomOpened(PhonePlugi n.java:167)
at org.jivesoftware.spark.ui.ChatContainer.fireChatRoomOpened(ChatContainer.java:9 03)
at org.jivesoftware.spark.ui.ChatContainer.addChatRoom(ChatContainer.java:349)
at org.jivesoftware.sparkimpl.plugin.alerts.BroadcastPlugin.userToUserBroadcast(Br oadcastPlugin.java:331)
at org.jivesoftware.sparkimpl.plugin.alerts.BroadcastPlugin.showAlert(BroadcastPlu gin.java:305)
at org.jivesoftware.sparkimpl.plugin.alerts.BroadcastPlugin.access$200(BroadcastPl ugin.java:94)
at org.jivesoftware.sparkimpl.plugin.alerts.BroadcastPlugin$5.run(BroadcastPlugin. java:228)
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(U nknown 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)

Mar 08, 2016 6:50:18 AM org.jivesoftware.spark.util.log.Log error
SEVERE: Closing Group Chat Room error.
java.lang.IllegalStateException: Not connected to server.
at org.jivesoftware.smack.XMPPConnection.sendPacket(XMPPConnection.java:491)
at org.jivesoftware.smackx.muc.MultiUserChat.leave(MultiUserChat.java:540)
at org.jivesoftware.spark.ui.rooms.GroupChatRoom.leaveChatRoom(GroupChatRoom.java: 562)
at org.jivesoftware.spark.ui.ChatContainer.cleanupChatRoom(ChatContainer.java:551)
at org.jivesoftware.spark.ui.ChatContainer.access$000(ChatContainer.java:90)
at org.jivesoftware.spark.ui.ChatContainer$1.tabRemoved(ChatContainer.java:123)
at org.jivesoftware.spark.component.tabbedPane.SparkTabbedPane.fireTabRemoved(Spar kTabbedPane.java:335)
at org.jivesoftware.spark.component.tabbedPane.SparkTabbedPane.close(SparkTabbedPa ne.java:360)
at org.jivesoftware.spark.ui.ChatContainer.closeTab(ChatContainer.java:819)
at org.jivesoftware.spark.ui.ChatContainer.closeAllChatRooms(ChatContainer.java:58 5)
at org.jivesoftware.spark.ui.ChatContainer$17.windowClosing(ChatContainer.java:125 9)
at java.awt.AWTEventMulticaster.windowClosing(Unknown Source)
at java.awt.AWTEventMulticaster.windowClosing(Unknown Source)
at java.awt.Window.processWindowEvent(Unknown Source)
at javax.swing.JFrame.processWindowEvent(Unknown Source)
at java.awt.Window.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Window.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(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(U nknown Source)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(U nknown Source)
at java.awt.EventQueue$4.run(Unknown Source)
at java.awt.EventQueue$4.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(U nknown 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)

Mar 08, 2016 8:00:36 AM org.jivesoftware.spark.util.log.Log error
SEVERE: Unable to retrieve list of rooms.
java.lang.NullPointerException
at org.jivesoftware.smackx.muc.MultiUserChat.getHostedRooms(MultiUserChat.java:288 )
at org.jivesoftware.spark.ui.conferences.ConferenceRoomBrowser.getRoomList(Confere nceRoomBrowser.java:821)
at org.jivesoftware.spark.ui.conferences.ConferenceRoomBrowser.access$800(Conferen ceRoomBrowser.java:97)
at org.jivesoftware.spark.ui.conferences.ConferenceRoomBrowser$14.run(ConferenceRo omBrowser.java:543)
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)

Mar 08, 2016 8:00:56 AM org.jivesoftware.spark.util.log.Log error
SEVERE: Unable to retrieve list of rooms.
java.lang.NullPointerException
at org.jivesoftware.smackx.muc.MultiUserChat.getHostedRooms(MultiUserChat.java:288 )
at org.jivesoftware.spark.ui.conferences.ConferenceRoomBrowser.getRoomList(Confere nceRoomBrowser.java:821)
at org.jivesoftware.spark.ui.conferences.ConferenceRoomBrowser.access$800(Conferen ceRoomBrowser.java:97)
at org.jivesoftware.spark.ui.conferences.ConferenceRoomBrowser$14.run(ConferenceRo omBrowser.java:543)
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)

Mar 08, 2016 8:01:10 AM org.jivesoftware.spark.util.log.Log error
SEVERE: Unable to retrieve list of rooms.
java.lang.NullPointerException
at org.jivesoftware.smackx.muc.MultiUserChat.getHostedRooms(MultiUserChat.java:288 )
at org.jivesoftware.spark.ui.conferences.ConferenceRoomBrowser.getRoomList(Confere nceRoomBrowser.java:821)
at org.jivesoftware.spark.ui.conferences.ConferenceRoomBrowser.access$800(Conferen ceRoomBrowser.java:97)
at org.jivesoftware.spark.ui.conferences.ConferenceRoomBrowser$14.run(ConferenceRo omBrowser.java:543)
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)

Mar 08, 2016 8:20:56 AM org.jivesoftware.spark.util.log.Log error
SEVERE: Unable to retrieve list of rooms.
java.lang.NullPointerException
at org.jivesoftware.smackx.muc.MultiUserChat.getHostedRooms(MultiUserChat.java:288 )
at org.jivesoftware.spark.ui.conferences.ConferenceRoomBrowser.getRoomList(Confere nceRoomBrowser.java:821)
at org.jivesoftware.spark.ui.conferences.ConferenceRoomBrowser.access$800(Conferen ceRoomBrowser.java:97)
at org.jivesoftware.spark.ui.conferences.ConferenceRoomBrowser$14.run(ConferenceRo omBrowser.java:543)
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)

Mar 08, 2016 10:00:30 AM org.jivesoftware.spark.util.log.Log error
SEVERE: Unable to retrieve list of rooms.
java.lang.NullPointerException
at org.jivesoftware.smackx.muc.MultiUserChat.getHostedRooms(MultiUserChat.java:288 )
at org.jivesoftware.spark.ui.conferences.ConferenceRoomBrowser.getRoomList(Confere nceRoomBrowser.java:821)
at org.jivesoftware.spark.ui.conferences.ConferenceRoomBrowser.access$800(Conferen ceRoomBrowser.java:97)
at org.jivesoftware.spark.ui.conferences.ConferenceRoomBrowser$14.run(ConferenceRo omBrowser.java:543)
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)

Mar 08, 2016 3:50:10 PM org.jivesoftware.spark.util.log.Log error
SEVERE: Unable to retrieve list of rooms.
java.lang.NullPointerException
at org.jivesoftware.smackx.muc.MultiUserChat.getHostedRooms(MultiUserChat.java:288 )
at org.jivesoftware.spark.ui.conferences.ConferenceRoomBrowser.getRoomList(Confere nceRoomBrowser.java:821)
at org.jivesoftware.spark.ui.conferences.ConferenceRoomBrowser.access$800(Conferen ceRoomBrowser.java:97)
at org.jivesoftware.spark.ui.conferences.ConferenceRoomBrowser$14.run(ConferenceRo omBrowser.java:543)
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)

Mar 08, 2016 4:15:26 PM org.jivesoftware.spark.util.log.Log error
SEVERE: Unable to retrieve list of rooms.
java.lang.NullPointerException
at org.jivesoftware.smackx.muc.MultiUserChat.getHostedRooms(MultiUserChat.java:288 )
at org.jivesoftware.spark.ui.conferences.ConferenceRoomBrowser.getRoomList(Confere nceRoomBrowser.java:821)
at org.jivesoftware.spark.ui.conferences.ConferenceRoomBrowser.access$800(Conferen ceRoomBrowser.java:97)
at org.jivesoftware.spark.ui.conferences.ConferenceRoomBrowser$14.run(ConferenceRo omBrowser.java:543)
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)

Mar 08, 2016 6:43:59 PM org.jivesoftware.spark.util.log.Log error
SEVERE: Unable to retrieve list of rooms.
java.lang.NullPointerException
at org.jivesoftware.smackx.muc.MultiUserChat.getHostedRooms(MultiUserChat.java:288 )
at org.jivesoftware.spark.ui.conferences.ConferenceRoomBrowser.getRoomList(Confere nceRoomBrowser.java:821)
at org.jivesoftware.spark.ui.conferences.ConferenceRoomBrowser.access$800(Conferen ceRoomBrowser.java:97)
at org.jivesoftware.spark.ui.conferences.ConferenceRoomBrowser$14.run(ConferenceRo omBrowser.java:543)
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)

speedy · March 9, 2016, 4:44pm

what look and feel are you using? did you change it from the default? What happens if you choose a different one?

WesK_Miller · March 9, 2016, 4:52pm

Is set to defaults from when installed, Have about a 100 users using Spark and this is the only user having this issue.

Where would I make changes to the look and feel and how do I change it to a different one?

Could it possibly something with Java, Causing the issue?

speedy · March 9, 2016, 5:07pm

if its just one workstation our of a 100, then you might have some corruption. the look and feel is found in preferences under Appearance. The default is JTattooLuna

If that doesn’t work, I would try the following

shutdown spark and delete %appdata%/Spark (user setttings,preferences,transcripts are saved here)

relaunch.

If that that doesn’t resolve, then I would uninstall. verifiy c:\program files\spark has been deleted, and again, delete the spark folder in %appdata%. then reinstall.