java - Exceptions, failed deploy when using Gemfire source with SpringXD -

i have following stream definition in springxd:

stream create datalistener --definition "gemfire --regionname=data --uselocator=true --host=lithium --port=10334 | null" --deploy 

but gives me following errors, , marks 'failed':

    [error 2015/04/09 16:09:20.265 art  <pooltimer-client-pool-2> tid=0x59] unexpected error in pool task <com.gemstone.gemfire.cache.client.internal.liveserverpinger$pingtask@5a422dfd> java.lang.linkageerror: loader constraint violation: when resolving method "com.gemstone.gemfire.cache.client.internal.pingop.execute(lcom/gemstone/gemfire/cache/client/internal/executablepool;lcom/gemstone/gemfire/distributed/internal/serverlocation;)v" class loader (instance of org/springframework/xd/module/support/parentlasturlclassloader) of current class, com/gemstone/gemfire/cache/client/internal/liveserverpinger$pingtask, , class loader (instance of sun/misc/launcher$appclassloader) resolved class, com/gemstone/gemfire/cache/client/internal/pingop, have different class objects type p.execute(lcom/gemstone/gemfire/cache/client/internal/executablepool;lcom/gemstone/gemfire/distributed/internal/serverlocation;)v used in signature         @ com.gemstone.gemfire.cache.client.internal.liveserverpinger$pingtask.run2(liveserverpinger.java:83)         @ com.gemstone.gemfire.cache.client.internal.poolimpl$pooltask.run(poolimpl.java:1197)         @ java.util.concurrent.executors$runnableadapter.call(executors.java:471)         @ java.util.concurrent.futuretask.runandreset(futuretask.java:304)         @ com.gemstone.gemfire.internal.scheduledthreadpoolexecutorwithkeepalive$delegatingscheduledfuture.run(scheduledthreadpoolexecutorwithkeepalive.java:252)         @ java.util.concurrent.threadpoolexecutor.runworker(threadpoolexecutor.java:1145)         @ java.util.concurrent.threadpoolexecutor$worker.run(threadpoolexecutor.java:615)         @ java.lang.thread.run(thread.java:745) 

this has happened before, , have fixed restarting vm. however, know how fix in proper manner.

any tips, workarounds or guidelines useful. also, please tell me if need more information.

i using latest version of spring xd, 1.1.1, , gemfire version 7.0.2. locator in same node stream deployment. using singlenode topology.

thank you!

do see messages in locator/server logs ?

i couldn't reproduce problem here, can share how starting locator ?