Slave host failure during take-snapshot operation

Take-snapshop operation fails on domain configured with master and slave host.

Slave host failure:

[Host Controller] 13:29:22,226 ERROR [org.jboss.as.controller.management-operation] (domain-connection-threads - 2) JBAS014612: Operation ("take-snapshot") failed - address: ([]): java.lang.IllegalArgumentException: newValue is null
[Host Controller] at org.jboss.dmr.ModelNode.set(ModelNode.java:458) [jboss-dmr-1.1.1.Final.jar:1.1.1.Final]
[Host Controller] at org.jboss.as.controller.operations.common.SnapshotTakeHandler.execute(SnapshotTakeHandler.java:53) [jboss-as-controller-7.1.0.Final-SNAPSHOT.jar:7.1.0.Final-SNAPSHOT]
[Host Controller] at org.jboss.as.controller.AbstractOperationContext.executeStep(AbstractOperationContext.java:359) [jboss-as-controller-7.1.0.Final-SNAPSHOT.jar:7.1.0.Final-SNAPSHOT]
[Host Controller] at org.jboss.as.controller.AbstractOperationContext.doCompleteStep(AbstractOperationContext.java:254) [jboss-as-controller-7.1.0.Final-SNAPSHOT.jar:7.1.0.Final-SNAPSHOT]
[Host Controller] at org.jboss.as.controller.AbstractOperationContext.completeStep(AbstractOperationContext.java:190) [jboss-as-controller-7.1.0.Final-SNAPSHOT.jar:7.1.0.Final-SNAPSHOT]
[Host Controller] at org.jboss.as.domain.controller.operations.coordination.OperationSlaveStepHandler.execute(OperationSlaveStepHandler.java:81) [jboss-as-host-controller-7.1.0.Final-SNAPSHOT.jar:7.1.0.Final-SNAPSHOT]
[Host Controller] at org.jboss.as.domain.controller.operations.coordination.PrepareStepHandler.execute(PrepareStepHandler.java:77) [jboss-as-host-controller-7.1.0.Final-SNAPSHOT.jar:7.1.0.Final-SNAPSHOT]
[Host Controller] at org.jboss.as.controller.AbstractOperationContext.executeStep(AbstractOperationContext.java:359) [jboss-as-controller-7.1.0.Final-SNAPSHOT.jar:7.1.0.Final-SNAPSHOT]
[Host Controller] at org.jboss.as.controller.AbstractOperationContext.doCompleteStep(AbstractOperationContext.java:254) [jboss-as-controller-7.1.0.Final-SNAPSHOT.jar:7.1.0.Final-SNAPSHOT]
[Host Controller] at org.jboss.as.controller.AbstractOperationContext.completeStep(AbstractOperationContext.java:190) [jboss-as-controller-7.1.0.Final-SNAPSHOT.jar:7.1.0.Final-SNAPSHOT]
[Host Controller] at org.jboss.as.controller.ModelControllerImpl.execute(ModelControllerImpl.java:119) [jboss-as-controller-7.1.0.Final-SNAPSHOT.jar:7.1.0.Final-SNAPSHOT]
[Host Controller] at org.jboss.as.controller.remote.TransactionalModelControllerOperationHandler$ExecuteRequestHandler.doExecute(TransactionalModelControllerOperationHandler.java:141) [jboss-as-controller-7.1.0.Final-SNAPSHOT.jar:7.1.0.Final-SNAPSHOT]
[Host Controller] at org.jboss.as.controller.remote.TransactionalModelControllerOperationHandler$ExecuteRequestHandler$1.execute(TransactionalModelControllerOperationHandler.java:127) [jboss-as-controller-7.1.0.Final-SNAPSHOT.jar:7.1.0.Final-SNAPSHOT]
[Host Controller] at org.jboss.as.protocol.mgmt.AbstractMessageHandler$3$1.doExecute(AbstractMessageHandler.java:269) [jboss-as-protocol-7.1.0.Final-SNAPSHOT.jar:7.1.0.Final-SNAPSHOT]
[Host Controller] at org.jboss.as.protocol.mgmt.AbstractMessageHandler$AsyncTaskRunner.run(AbstractMessageHandler.java:425) [jboss-as-protocol-7.1.0.Final-SNAPSHOT.jar:7.1.0.Final-SNAPSHOT]
[Host Controller] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) [:1.7.0_b147-icedtea]
[Host Controller] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) [:1.7.0_b147-icedtea]
[Host Controller] at java.lang.Thread.run(Thread.java:722) [:1.7.0_b147-icedtea]
[Host Controller] at org.jboss.threads.JBossThread.run(JBossThread.java:122) [jboss-threads-2.0.0.GA.jar:2.0.0.GA]

Steps to reproduce:

dpospisi@simkin bin]$ ./jboss-admin.sh
You are disconnected at the moment. Type 'connect' to connect to the server or 'help' for the list of supported commands.
[disconnected /] connect
[domain@localhost:9999 /] :take-snapshot
{
"outcome" => "failed",
"result" => "/home/dpospisi/runtimes/jboss-as-7.1.0.Final-SNAPSHOT/domain/configuration/domain_xml_history/snapshot/20120125-132922203domain-standard.xml",
"failure-description" =>

{"host-failure-descriptions" => [("slave" => "JBAS014749: Operation handler failed: newValue is null")]}

,
"rolled-back" => true
}
I am using domain configuration from testsuite/domain module.