I am getting this issue whenever i am trying to login to the Softphone. When traced found that the SendToDesktop activity is throwing this exception while publish this the event in "NO-Plugin" mode ( HTTP).This issue is only occured in UAT ( prod enviornment) not in any of the lower env.

SendToDesktop Activity - Step 2 has the Java code . The last step in the activity will publish the event , since it is an out-of-box activity I am not sure this activity will post the information in Queue.

Can someone help me what we are really  missing causing this issue ? or did anyone encounter this issue before ? Please advice.

2016-10-13 14:34:53,262 [   WebContainer : 19] [  STANDARD] [    CardSrv:04.56.50] (                pega.pegacti.*) DEBUG lepsupport.mango.org|10.XX2.X22.122|SOAP|CTILinkRemoteEvent|Event|PhoneEvent|ABBCAF5470E2B54912B4E93D2A2388F2E DSundaravadivelu - Processing Remote Event <?xml version="1.0"?>

<pagedata>
<pyAgentStateName>Unknown</pyAgentStateName>
<pyEventString>DeviceSnapshot</pyEventString>
<pyActiveLine>-1</pyActiveLine>
<pySessionId>JTAPI_AvayaUATCTILink-ACD</pySessionId>
<pxObjClass>ChannelServices-Event-CTILink-JTAPI</pxObjClass>
<pyLinkNodeURL>/g39KfsPA6--ty8Xd36mkqQ%5B%5B*</pyLinkNodeURL>
<pyLinkName>AvayaUATCTILink</pyLinkName>
<pyLinkState>CONNECTED</pyLinkState>
<pyVendor>AVAYA</pyVendor>
<pyThisDN>1052232</pyThisDN>
<pyDeviceState>CLOSED</pyDeviceState>
<pyLinkInsHandle>CHANNELSERVICES-ADMIN-CTILINK-LOCAL-JTAPI AVAYAUATCTILINK</pyLinkInsHandle>
<pyAgentState>Unknown</pyAgentState>
<pyWorkStationId>HTTP://10.XX2.XX1.XX0/H-GET?ChannelName=PegaCALL|ChannelParam=H1084F845F5C7E21896E1352FFA78F997</pyWorkStationId>
<pyHeartbeatInterval>60000</pyHeartbeatInterval>
<pyClientHandle>AFA835EF6A171128C79411FECD13BC46C</pyClientHandle>
<pzStatus>false</pzStatus>
<pyLines REPEATINGTYPE="PageList">
<rowdata REPEATINGINDEX="1">
<pyCallId>0</pyCallId>
<pyUCID>0</pyUCID>
<pyLineState>NONE</pyLineState>
<pxObjClass>ChannelServices-Embed-Line</pxObjClass>
</rowdata>
<rowdata REPEATINGINDEX="2">
<pyCallId>0</pyCallId>
<pyUCID>0</pyUCID>
<pyLineState>NONE</pyLineState>
<pxObjClass>ChannelServices-Embed-Line</pxObjClass>
</rowdata>
<rowdata REPEATINGINDEX="3">
<pyCallId>0</pyCallId>
<pyUCID>0</pyUCID>
<pyLineState>NONE</pyLineState>
<pxObjClass>ChannelServices-Embed-Line</pxObjClass>
</rowdata>
<rowdata REPEATINGINDEX="4">
<pyCallId>0</pyCallId>
<pyUCID>0</pyUCID>
<pyLineState>NONE</pyLineState>
<pxObjClass>ChannelServices-Embed-Line</pxObjClass>
</rowdata>
</pyLines>
</pagedata>

2016-10-13 14:34:53,265 [   WebContainer : 19] [  STANDARD] [    CardSrv:04.56.50] (              com.pega.pegacti) DEBUG lepsupport.mango.org|10.XX2.X22.122|SOAP|CTILinkRemoteEvent|Event|PhoneEvent|ABBCAF5470E2B54912B4E93D2A2388F2E DSundaravadivelu - protocol- HTTP
2016-10-13 14:34:53,265 [   WebContainer : 19] [  STANDARD] [    CardSrv:04.56.50] (              com.pega.pegacti) DEBUG lepsupport.mango.org|10.XX2.X22.122|SOAP|CTILinkRemoteEvent|Event|PhoneEvent|ABBCAF5470E2B54912B4E93D2A2388F2E DSundaravadivelu - HTTP-G parsing presence info: H-GET?ChannelName=PegaCALL|ChannelParam=H1084F845F5C7E21896E1352FFA78F997
2016-10-13 14:34:53,265 [   WebContainer : 19] [  STANDARD] [    CardSrv:04.56.50] (              com.pega.pegacti) DEBUG lepsupport.mango.org|10.XX2.X22.122|SOAP|CTILinkRemoteEvent|Event|PhoneEvent|ABBCAF5470E2B54912B4E93D2A2388F2E DSundaravadivelu - Publishing event + reqID [H1084F845F5C7E21896E1352FFA78F997] Event [

<SnapshotEvent>
<pyAgentStateName>Unknown</pyAgentStateName>
<pyEventString>DeviceSnapshot</pyEventString>
<pyActiveLine>-1</pyActiveLine>
<pySessionId>JTAPI_AvayaUATCTILink-ACD</pySessionId>
<pxObjClass>ChannelServices-Event-CTILink</pxObjClass>
<pyLinkNodeURL>/g39KfsPA6--KwrE99DP2yw%5B%5B*</pyLinkNodeURL>
<pyLinkName>AvayaUATCTILink</pyLinkName>
<pyLinkState>CONNECTED</pyLinkState>
<pyVendor>AVAYA</pyVendor>
<pyThisDN>1052232</pyThisDN>
<pyDeviceState>CLOSED</pyDeviceState>
<pyLinkInsHandle>CHANNELSERVICES-ADMIN-CTILINK-LOCAL-JTAPI AVAYAUATCTILINK</pyLinkInsHandle>
<pyAgentState>Unknown</pyAgentState>
<pyWorkStationId>HTTP://10.XX2.XX1.XX0/H-GET?ChannelName=PegaCALL|ChannelParam=H1084F845F5C7E21896E1352FFA78F997</pyWorkStationId>
<pyHeartbeatInterval>60000</pyHeartbeatInterval>
<pyMedia>Phone</pyMedia>
<pyEventName>Snapshot</pyEventName>
<pyClientHandle>AFA835EF6A171128C79411FECD13BC46C</pyClientHandle>
<pzStatus>valid</pzStatus>
<pyLines REPEATINGTYPE="PageList">
<rowdata REPEATINGINDEX="1">
<pyCallId>0</pyCallId>
<pyUCID>0</pyUCID>
<pyLineState>NONE</pyLineState>
<pxObjClass>ChannelServices-Embed-Line</pxObjClass>
</rowdata>
<rowdata REPEATINGINDEX="2">
<pyCallId>0</pyCallId>
<pyUCID>0</pyUCID>
<pyLineState>NONE</pyLineState>
<pxObjClass>ChannelServices-Embed-Line</pxObjClass>
</rowdata>
<rowdata REPEATINGINDEX="3">
<pyCallId>0</pyCallId>
<pyUCID>0</pyUCID>
<pyLineState>NONE</pyLineState>
<pxObjClass>ChannelServices-Embed-Line</pxObjClass>
</rowdata>
<rowdata REPEATINGINDEX="4">
<pyCallId>0</pyCallId>
<pyUCID>0</pyUCID>
<pyLineState>NONE</pyLineState>
<pxObjClass>ChannelServices-Embed-Line</pxObjClass>
</rowdata>
</pyLines>
</SnapshotEvent>
]
2016-10-13 14:34:53,265 [   WebContainer : 19] [  STANDARD] [    CardSrv:04.56.50] (      internal.mgmt.Executable) ERROR lepsupport.mango.org|10.XX2.X22.122|SOAP|CTILinkRemoteEvent|Event|PhoneEvent|ABBCAF5470E2B54912B4E93D2A2388F2E DSundaravadivelu - Exception
java.lang.UnsupportedOperationException
 at com.pega.pegarules.cluster.internal.PRClusterDistributedObjectManagerImpl.getDistributedMap(PRClusterDistributedObjectManagerImpl.java:43)
 at com.pega.pegarules.exec.internal.async.ClusterSubscriptionsManager.getSubscriberNodesMap(ClusterSubscriptionsManager.java:86)
 at com.pega.pegarules.exec.internal.async.ClusterSubscriptionsManager.getAllSubscribedNodesSet(ClusterSubscriptionsManager.java:107)
 at com.pega.pegarules.exec.internal.async.PRHazelcastPublishServiceImpl.publish(PRHazelcastPublishServiceImpl.java:77)
 at com.pega.pegarules.exec.internal.async.ASMClusterCommunicator.publishEvent(ASMClusterCommunicator.java:70)
 at com.pega.pegarules.exec.internal.async.AsyncServicesManager.publishEvent(AsyncServicesManager.java:870)
 at com.pega.pegarules.exec.internal.async.PushNotificationsUtilsImpl.publishEvent(PushNotificationsUtilsImpl.java:47)
 at com.pegarules.generated.activity.ra_action_sendtodesktop_73dcd226e15b7cd3a17926773690a834.step2_circum0(ra_action_sendtodesktop_73dcd226e15b7cd3a17926773690a834.java:317)
 at com.pegarules.generated.activity.ra_action_sendtodesktop_73dcd226e15b7cd3a17926773690a834.perform(ra_action_sendtodesktop_73dcd226e15b7cd3a17926773690a834.java:86)
 at com.pega.pegarules.session.internal.mgmt.Executable.doActivity(Executable.java:3500)
 at com.pega.pegarules.session.internal.mgmt.Executable.invokeActivity(Executable.java:10514)
 at com.pegarules.generated.activity.ra_action_sendsnapshotevent_03ffd310f0cabb5a8e633ca4aac1f088.step5_circum0(ra_action_sendsnapshotevent_03ffd310f0cabb5a8e633ca4aac1f088.java:364)
 at com.pegarules.generated.activity.ra_action_sendsnapshotevent_03ffd310f0cabb5a8e633ca4aac1f088.perform(ra_action_sendsnapshotevent_03ffd310f0cabb5a8e633ca4aac1f088.java:120)
 at com.pega.pegarules.session.internal.mgmt.Executable.doActivity(Executable.java:3500)

***Updated by Moderator: Marissa. Removed user added blog, #helpme, and Ask the Expert group tags. Apologies for confusion, shouldn't have been an end-user option; add SR Details to post***