This is intermittent. It was observed in jdk9-dev nightly-b95-2015-11-29. There was a similar history issue JDK-8072828. Its error message is a bit different.

Please refer to following test output.
----------System.out:(210/9917)----------
vmOpts: '-ea -esa -DCompatibilityTest.disableNetwork=true -Xmx512m'
javaOpts: '-d64'
JVM version:1.9.0-ea
JDI version: 1.8
JVM description: Java Debug Interface (Reference Implementation) version 1.8
Java Debug Wire Protocol (Reference Implementation) version 1.8
JVM Debug Interface version 1.2
JVM version 1.9.0-ea (Java HotSpot(TM) 64-Bit Server VM, mixed mode, sharing)
Howdy!
Got BreakpointEvent: 0, debuggeeCount = 0
Got BreakpointEvent: 1, debuggeeCount = 3072
Got BreakpointEvent: 2, debuggeeCount = 3199
....
Got BreakpointEvent: 199, debuggeeCount = 101123
ERROR: transport error 202: send failed: Broken pipe
----------System.err:(7/174)----------
run args: [SuspendThreadTarg]
done with loop
SuspendThreadTest: passed

JavaTest Message: Test complete.

IOException reading output of child java interpreter:Stream Closed
result: Error. Error while cleaning up threads after test