PH30432: AUTOMATIONPLUGINMIGRATORLOOKUP HOLDS LOCK FOR TOO LONG

APAR status

• Closed as program error.

Error description

• Blocking thread has stack:
  
  
  com/urbancode/ds/plugin/automation/AutomationPluginMigratorLooku
  p@0x0000000522EABF98: owner "WorkflowRuntime-5"
  (J9VMThread:0x0000000001E71500), entry count 1
  Line 8432: 3XMTHREADBLOCK Blocked on:
  com/urbancode/ds/plugin/automation/AutomationPluginMigratorLooku
  p@0x0000000522EABF98 Owned by: "WorkflowRuntime-5"
  (J9VMThread:0x0000000001E71500,
  java/lang/Thread:0x000000052150C878)
  Line 8435: 4XESTACKTRACE at
  com/urbancode/ds/plugin/automation/AutomationPluginMigratorLooku
  p.getAutomationPluginMigrator(AutomationPluginMigratorLookup.jav
  a:25(Compiled Code))
  Line 8435: 4XESTACKTRACE at
  com/urbancode/ds/plugin/automation/AutomationPluginMigratorLooku
  p.getAutomationPluginMigrator(AutomationPluginMigratorLookup.jav
  a:25(Compiled Code))
  Line 8436: 5XESTACKTRACE (entered lock:
  com/urbancode/ds/plugin/automation/AutomationPluginMigratorLooku
  p@0x0000000522EABF98, entry count: 1)
  Line 8878: 3XMTHREADBLOCK Blocked on:
  com/urbancode/ds/plugin/automation/AutomationPluginMigratorLooku
  p@0x0000000522EABF98 Owned by: "WorkflowRuntime-5"
  (J9VMThread:0x0000000001E71500,
  java/lang/Thread:0x000000052150C878)
  Line 8881: 4XESTACKTRACE at
  com/urbancode/ds/plugin/automation/AutomationPluginMigratorLooku
  p.getAutomationPluginMigrator(AutomationPluginMigratorLookup.jav
  a:25(Compiled Code))
  Line 8881: 4XESTACKTRACE at
  com/urbancode/ds/plugin/automation/AutomationPluginMigratorLooku
  p.getAutomationPluginMigrator(AutomationPluginMigratorLookup.jav
  a:25(Compiled Code))
  Line 8882: 5XESTACKTRACE (entered lock:
  com/urbancode/ds/plugin/automation/AutomationPluginMigratorLooku
  p@0x0000000522EABF98, entry count:
  

Local fix

• Fix is provided to release the lock so that we would not hold it
  while loading the
  latest plugin and block calls for unrelated plugins.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * All end users on all supported browsers.                     *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * Blocking thread has stack:                                   *
  *                                                              *
  *                                                              *
  * com/urbancode/ds/plugin/automation/AutomationPluginMigratorL *
  * ooku                                                         *
  * p@0x0000000522EABF98: owner "WorkflowRuntime-5"              *
  * (J9VMThread:0x0000000001E71500), entry count 1               *
  * Line 8432: 3XMTHREADBLOCK Blocked on:                        *
  * com/urbancode/ds/plugin/automation/AutomationPluginMigratorL *
  * ooku                                                         *
  * p@0x0000000522EABF98 Owned by: "WorkflowRuntime-5"           *
  * (J9VMThread:0x0000000001E71500,                              *
  * java/lang/Thread:0x000000052150C878)                         *
  * Line 8435: 4XESTACKTRACE at                                  *
  * com/urbancode/ds/plugin/automation/AutomationPluginMigratorL *
  * ooku                                                         *
  * p.getAutomationPluginMigrator(AutomationPluginMigratorLookup *
  * .jav                                                         *
  * a:25(Compiled Code))                                         *
  * Line 8435: 4XESTACKTRACE at                                  *
  * com/urbancode/ds/plugin/automation/AutomationPluginMigratorL *
  * ooku                                                         *
  * p.getAutomationPluginMigrator(AutomationPluginMigratorLookup *
  * .jav                                                         *
  * a:25(Compiled Code))                                         *
  * Line 8436: 5XESTACKTRACE (entered lock:                      *
  * com/urbancode/ds/plugin/automation/AutomationPluginMigratorL *
  * ooku                                                         *
  * p@0x0000000522EABF98, entry count: 1)                        *
  * Line 8878: 3XMTHREADBLOCK Blocked on:                        *
  * com/urbancode/ds/plugin/automation/AutomationPluginMigratorL *
  * ooku                                                         *
  * p@0x0000000522EABF98 Owned by: "WorkflowRuntime-5"           *
  * (J9VMThread:0x0000000001E71500,                              *
  * java/lang/Thread:0x000000052150C878)                         *
  * Line 8881: 4XESTACKTRACE at                                  *
  * com/urbancode/ds/plugin/automation/AutomationPluginMigratorL *
  * ooku                                                         *
  * p.getAutomationPluginMigrator(AutomationPluginMigratorLookup *
  * .jav                                                         *
  * a:25(Compiled Code))                                         *
  * Line 8881: 4XESTACKTRACE at                                  *
  * com/urbancode/ds/plugin/automation/AutomationPluginMigratorL *
  * ooku                                                         *
  * p.getAutomationPluginMigrator(AutomationPluginMigratorLookup *
  * .jav                                                         *
  * a:25(Compiled Code))                                         *
  * Line 8882: 5XESTACKTRACE (entered lock:                      *
  * com/urbancode/ds/plugin/automation/AutomationPluginMigratorL *
  * ooku                                                         *
  * p@0x0000000522EABF98, entry count:                           *
  ****************************************************************
  * RECOMMENDATION:                                              *
  * Fixed in version 7.1.1.1                                     *
  ****************************************************************
  

Problem conclusion

• Fix is provided in IBM UrbanCode Deploy 7.1.1.1
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

Fix information

• Fixed component name

  UC DEPLOY

• Fixed component ID

  5725M5400

Applicable component levels