Github user neykov commented on the issue:
https://github.com/apache/brooklyn-server/pull/426
Looks good and works much better, see the [new
build](https://builds.apache.org/view/Brooklyn/job/brooklyn-integration-tests/52/console)
```
2016-11-10 15:47:31,205 INFO TESTNG INVOKING: "Surefire test" -
org.apache.brooklyn.util.javalang.MemoryUsageTrackerTest.testSoftUsageAndClearance()
2016-11-10 15:47:31,206 INFO Memory usage at start of test:
MemoryUsageSummary{total=772 MB, free=652 MB, used=120 MB,
usedFraction=0.1555049937704335}
SUREFIRE-859: [GC (Allocation Failure) 265638K->264541K(753664K),
0.0252673 secs]
SUREFIRE-859: [GC (Allocation Failure) 460429K->459760K(753152K),
0.0260455 secs]
SUREFIRE-859: [Full GC (Ergonomics) 459760K->351817K(753152K), 0.0518254
secs]
SUREFIRE-859: [Full GC (Ergonomics) 548263K->548101K(753152K), 0.1852436
secs]
SUREFIRE-859: [Full GC (Ergonomics) 719375K->718997K(753152K), 0.0680970
secs]
SUREFIRE-859: [Full GC (Ergonomics) 720275K->719974K(753152K), 0.0546380
secs]
SUREFIRE-859: [Full GC (Allocation Failure) 719974K->8048K(753152K),
0.0267869 secs]
2016-11-10 15:47:31,782 INFO First soft reference cleared after 730 1M
blocks created; 729 of them cleared; memory just before collected is
MemoryUsageSummary{total=771 MB, free=33.7 MB, used=738 MB,
usedFraction=0.9563477890253229}
SUREFIRE-859: [Full GC (Ergonomics) 704594K->702492K(753152K), 0.2032216
secs]
SUREFIRE-859: [Full GC (Ergonomics) 712258K->711185K(753152K), 0.0347821
secs]
SUREFIRE-859: [Full GC (Allocation Failure) 711185K->711185K(753152K),
0.0322254 secs]
SUREFIRE-859: [Full GC (System.gc()) 711185K->8055K(753152K), 0.0285412
secs]
SUREFIRE-859: [GC (System.gc()) 8055K->8055K(645632K), 0.0029759 secs]
SUREFIRE-859: [Full GC (System.gc()) 8055K->8055K(645632K), 0.0225672 secs]
2016-11-10 15:47:32,244 INFO Forcing memory eviction: allocated 725 MB +-
5 MB really free memory in 10 MB chunks; memory used from 11.5 MB -> 8.25 MB /
661 MB
SUREFIRE-859: [GC (System.gc()) 9315K->8215K(699392K), 0.0011906 secs]
SUREFIRE-859: [Full GC (System.gc()) 8215K->8063K(699392K), 0.0333181 secs]
SUREFIRE-859: [GC (System.gc()) 8063K->8063K(699392K), 0.0021073 secs]
SUREFIRE-859: [Full GC (System.gc()) 8063K->8063K(699392K), 0.0225468 secs]
2016-11-10 15:47:32,305 INFO Final memory usage (after forcing clear, and
GC): MemoryUsageSummary{total=716 MB, free=708 MB, used=8.26 MB,
usedFraction=0.01152881940671326}
2016-11-10 15:47:32,305 INFO TESTNG PASSED: "Surefire test" -
org.apache.brooklyn.util.javalang.MemoryUsageTrackerTest.testSoftUsageAndClearance()
finished in 1100 ms
```
Merging.
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