Github user sjcorbett commented on the issue:
https://github.com/apache/brooklyn-server/pull/592
The Jenkins failure was due to the environment:
```
Java HotSpot(TM) 64-Bit Server VM warning: INFO:
os::commit_memory(0x00000000d0000000, 536870912, 0) failed; error='Cannot
allocate memory' (errno=12)
#
# There is insufficient memory for the Java Runtime Environment to continue.
# Native memory allocation (mmap) failed to map 536870912 bytes for
committing reserved memory.
# An error report file with more information is saved as:
#
/home/jenkins/jenkins-slave/workspace/brooklyn-server-pull-requests/core/hs_err_pid31046.log
```
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