This is intermittent compiler crash, observed from JDK9/b83 same binaries run on solaris-amd64. Unfortunately, hs_err log, hs_err log, replay_*.log and core dump are not saved by jtreg.

sun/security/ssl/AppOutputStream/NoExceptionOnClose.java
#section:build
----------messages:(3/104)----------
command: build NoExceptionOnClose
reason: Named class compiled on demand
elapsed time (seconds): 35.646
result: Error. Agent communication error: java.io.EOFException; check console log for any additional details

From console log:
Agent[8].stdout: #
Agent[8].stdout: # A fatal error has been detected by the Java Runtime Environment:
Agent[8].stdout: #
Agent[8].stdout: # SIGSEGV (0xb) at pc=0xffff80ffb2385e0c, pid=3399, tid=68
Agent[8].stdout: #
Agent[8].stdout: # JRE version: Java(TM) SE Runtime Environment (9.0-b83) (build 1.9.0-ea-b83)
Agent[8].stdout: # Java VM: Java HotSpot(TM) 64-Bit Server VM (1.9.0-ea-b83, mixed mode, tiered, compressed oops, g1 gc, solaris-amd64)
Agent[8].stdout: # Problematic frame:
Agent[8].stdout: # V [libjvm.so+0xf85e0c] Node*IfNode::Ideal(PhaseGVN*,bool)+0x128c
Agent[8].stdout: #
Agent[8].stdout: # Core dump will be written. Default location: /scratch/export/home/aurora/sandbox_keepme/results/run_392/testoutput/tier2/JTwork/scratch/4/core or core.3399
Agent[8].stdout: #
Agent[8].stdout: # An error report file with more information is saved as:
Agent[8].stdout: # /scratch/export/home/aurora/sandbox_keepme/results/run_392/testoutput/tier2/JTwork/scratch/4/hs_err_pid3399.log
Agent[8].stdout: #
Agent[8].stdout: # Compiler replay data is saved as:
Agent[8].stdout: # /scratch/export/home/aurora/sandbox_keepme/results/run_392/testoutput/tier2/JTwork/scratch/4/replay_pid3399.log
Agent[8].stdout: #
Agent[8].stdout: # If you would like to submit a bug report, please visit:
Agent[8].stdout: # http://bugreport.java.com/bugreport/crash.jsp
Agent[8].stdout: #