Stack trace - NullPointerException

The following NullPointerException happens when I configure
destinations with bidirectional one-many associations more than one
level deep.
Example:
Company, one-to-many Vendors, one-to-many Items
Items, many-to-one Vendor
The recursive subscription mechanism gets stuck in the Vendor
association of Item and crashes:
11:49:53,796 ERROR [STDERR] Exception in RtmpReader thread:
java.lang.NullPointerException
11:49:53,796 ERROR [STDERR] java.lang.NullPointerException
11:49:53,796 ERROR [STDERR] at
flex.data.DataService.addSubscriberToSequenceProxies(DataService.java:1029)
11:49:53,796 ERROR [STDERR] at
flex.data.DataService.addSubscriberToSequenceProxies(DataService.java:1044)
11:49:53,796 ERROR [STDERR] at
flex.data.DataService.addSubscriberToSequenceProxies(DataService.java:1044)
11:49:53,796 ERROR [STDERR] at
flex.data.DataService.addSubscriberToSequenceProxies(DataService.java:1044)
11:49:53,796 ERROR [STDERR] at
flex.data.DataService.addSubscriberToSequenceProxies(DataService.java:1044)
11:49:53,796 ERROR [STDERR] at
flex.data.DataService.addSubscriberToSequenceProxies(DataService.java:1044)
11:49:53,796 ERROR [STDERR] at
flex.data.DataService.addSubscriberToSequenceProxies(DataService.java:1044)
11:49:53,796 ERROR [STDERR] at
flex.data.DataService.addSubscriberToSequenceProxies(DataService.java:1044)
11:49:53,796 ERROR [STDERR] at
flex.data.DataService.addSubscriberToSequenceProxies(DataService.java:1044)
11:49:53,796 ERROR [STDERR] at
flex.data.DataService.addSubscriberToSequenceProxies(DataService.java:1044)
11:49:53,796 ERROR [STDERR] at
flex.data.DataService.addSubscriberToSequenceProxies(DataService.java:1044)
11:49:53,796 ERROR [STDERR] at
flex.data.DataService.addSubscriberToSequenceProxies(DataService.java:1044)
11:49:53,796 ERROR [STDERR] at
flex.data.DataService.addSubscription(DataService.java:440)
11:49:53,796 ERROR [STDERR] at
flex.data.DataService.serviceMessage(DataService.java:298)
11:49:53,796 ERROR [STDERR] at
flex.messaging.MessageBroker.routeMessageToService(MessageBroker.java:506)
11:49:53,796 ERROR [STDERR] at
flex.messaging.endpoints.AbstractEndpoint.serviceMessage(AbstractEndpoint.java:266)
11:49:53,796 ERROR [STDERR] at
flex.messaging.endpoints.rtmp.AbstractRTMPServer.dispatchMessage(AbstractRTMPServer.java: 602)
11:49:53,796 ERROR [STDERR] at
flex.messaging.endpoints.rtmp.RTMPConnection$RtmpReader.run(RTMPConnection.java:465)
11:49:53,796 ERROR [STDERR] at
edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPo olExecutor.java:643)
11:49:53,796 ERROR [STDERR] at
edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolEx ecutor.java:668)
11:49:53,796 ERROR [STDERR] at java.lang.Thread.run(Unknown
Source)

Even with one-level bidirectional associations, FDS evenually
loops forever when enough records are in the database, and never
responds to the fill request. I have had to remove all of my
many-to-one entries from metadata when they point back to the
owning entity in order to keep working on my application.

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Stack trace - NullPointerException

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