SFC Jenkins job is running out of memory

The introduction of new junit tests is making SFC Jenkins job run out of memory

https://git.opendaylight.org/gerrit/#/c/23715/

https://jenkins.opendaylight.org/releng/job/sfc-verify-master/796/jdk=openjdk7,nodes=dynamic_verify/console

testBasicEnvSetup(org.opendaylight.sfc.provider.api.SfcServiceFunctionSchedulerAPITest) Time elapsed: 0.136 sec <<< ERROR!
java.lang.OutOfMemoryError: unable to create new native thread
at java.lang.Thread.start0(Native Method)
at java.lang.Thread.start(Thread.java:714)
at java.util.concurrent.ThreadPoolExecutor.addWorker(ThreadPoolExecutor.java:949)
at java.util.concurrent.ThreadPoolExecutor.execute(ThreadPoolExecutor.java:1371)
at com.lmax.disruptor.dsl.EventProcessorInfo.start(EventProcessorInfo.java:77)
at com.lmax.disruptor.dsl.Disruptor.start(Disruptor.java:288)
at org.opendaylight.controller.md.sal.dom.broker.impl.DOMNotificationRouter.<init>(DOMNotificationRouter.java:91)
at