RunUnitTestsConcurrently crashes during JPRT integration

ACTION: main -- Failed. Unexpected exit from test [exit code: 1]
REASON: User specified action: run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI RunUnitTestsConcurrently 30 15000
TIME: 28.6 seconds
messages:
command: main -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI RunUnitTestsConcurrently 30 15000
reason: User specified action: run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI RunUnitTestsConcurrently 30 15000
elapsed time (seconds): 28.6
STDOUT:
Starting threads
#
# There is insufficient memory for the Java Runtime Environment to continue.
# Native memory allocation (mmap) failed to map 10485760 bytes for committing reserved memory.
# An error report file with more information is saved as:
# /opt/jprt/T/P1/031158.iignatye/s/hotspot/build/solaris-i586/testoutput/JTwork/scratch/hs_err_pid28275.log
[thread 33 also had an error]
[thread 53 also had an error]
[thread 29 also had an error]
[thread 37 also had an error]
STDERR:
Java HotSpot(TM) 64-Bit Server VM warning: INFO: os::commit_memory(0x00007ffcace00000, 10485760, 0) failed; error='Resource temporarily unavailable' (errno=11)
Java HotSpot(TM) 64-Bit Server VM warning: INFO: os::commit_memory(0x00007ffcac800000, 6291456, 0) failed; error='Resource temporarily unavailable' (errno=11)
Java HotSpot(TM) 64-Bit Server VM warning: INFO: os::commit_memory(0x00007fffc1800000, 2097152, 0) failed; error='Resource temporarily unavailable' (errno=11)
Java HotSpot(TM) 64-Bit Server VM warning: INFO: os::commit_memory(0x00007ffcab600000, 4202496, 0) failed; error='Resource temporarily unavailable' (errno=11)
Java HotSpot(TM) 64-Bit Server VM warning: INFO: os::commit_memory(0x00007fffc1800000, 2097152, 0) failed; error='Resource temporarily unavailable' (errno=11)
rerun:
TEST RESULT: Failed. Unexpected exit from test [exit code: 1]