Add Sensor On SOA Composer gives error empty namespace / prefix

(Doc ID 2336602.1)

Last updated on DECEMBER 13, 2017

Applies to:

Oracle SOA Suite - Version 12.1.3.0.0 to 12.2.1.3.0 [Release 12c]
Information in this document applies to any platform.

Symptoms

Unable to add sensor application on SOA Composer

While trying to select any of the Expression(Variable, Expression, Properties), It is redirecting to the Error page with error message "An unexpected error occurred. For details view the log files. Please logout and re-login to the application"

[2017-11-17T09:50:13.489+05:30] [AdminServer] [ERROR] [] [oracle.soa.common.console] [tid: [ACTIVE].ExecuteThread: '67' for queue: 'weblogic.kernel.Default (self-tuning)'] [userId: weblogic] [ecid: 482ecbc7-0b06-4c4d-b213-aff31ee7b062-000bf4f0,0] [APP: soa-webapps] [partition-name: DOMAIN] [tenant-name: GLOBAL] [DSID: 0000Lz8CiFjEsHk_KxG7ye1Q2JTk00000I] Unexpected runtime error.[[
javax.faces.el.EvaluationException: java.lang.IllegalArgumentException: empty namespace / prefix
at org.apache.myfaces.trinidadinternal.taglib.util.MethodExpressionMethodBinding.invoke(MethodExpressionMethodBinding.java:58)
at org.apache.myfaces.trinidad.component.UIXComponentBase.broadcastToMethodBinding(UIXComponentBase.java:1987)
at org.apache.myfaces.trinidad.component.UIXCommand.broadcast(UIXCommand.java:183)
at oracle.adf.view.rich.component.rich.nav.RichCommandMenuItem.broadcast(RichCommandMenuItem.java:105)
at org.apache.myfaces.trinidad.component.UIXComponent.broadcastInContext(UIXComponent.java:364)
at oracle.adf.view.rich.event.ProxyEvent.broadcastWrappedEvent(ProxyEvent.java:72)
at oracle.adf.view.rich.component.fragment.UIXRegion._handleProxyEvent(UIXRegion.java:933)
at oracle.adf.view.rich.component.fragment.UIXRegion.broadcast(UIXRegion.java:117)
at org.apache.myfaces.trinidad.component.UIXComponent.broadcastInContext(UIXComponent.java:364)
at org.apache.myfaces.trinidad.component.WrapperEvent.broadcastWrappedEvent(WrapperEvent.java:82)
at oracle.adf.view.rich.component.fragment.UIXInclude.broadcast(UIXInclude.java:111)
at org.apache.myfaces.trinidad.component.UIXComponent.broadcastInContext(UIXComponent.java:364)
at org.apache.myfaces.trinidad.component.WrapperEvent.broadcastWrappedEvent(WrapperEvent.java:82)
at oracle.adf.view.rich.component.fragment.ContextSwitchingComponent$1.run(ContextSwitchingComponent.java:168)
at oracle.adf.view.rich.component.fragment.ContextSwitchingComponent._processPhase(ContextSwitchingComponent.java:510)
at oracle.adf.view.rich.component.fragment.ContextSwitchingComponent.broadcast(ContextSwitchingComponent.java:171)

The issue can be reproduced at will with the following steps:
1)Login to the SOA Composer.
2)Click on Edit Session.
3)Click on SOStatusJDAReqService. (SOStatusJDAReqService already added in EM)
4)Click on Create Sensor Service.
5) Selecting Name as SOStatusMsgJDA.
6)ERROR: While we are trying to select any of the Expression(Variable, Expression, Properties), It is redirecting to the Error page with error message "An unexpected error occurred. For details view the log files. Please logout and re-login to the application"

Cause

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