Hi, Please hep review the cleanup changes for jrtfs implementation.
issue: https://bugs.openjdk.java.net/browse/JDK-8147460 webrev: http://cr.openjdk.java.net/~sherman/8147460/webrev Simple benchmark [1] has been run both on jimage and the "exploded modules" directory, the numbers suggest we also get an encouraging performance boost on most of the frequently invoked access methods. [1] http://cr.openjdk.java.net/~sherman/8147460/MyBenchmark.java Benchmark Mode Cnt Score Error Units ------------------------------------------------------------ [jimage/existing] MyBenchmark.testExists avgt 50 18.592 ± 1.213 ms/op MyBenchmark.testIsDirectory avgt 50 17.382 ± 1.178 ms/op MyBenchmark.testIsRegularFile avgt 50 18.576 ± 1.577 ms/op MyBenchmark.testItr avgt 50 58.414 ± 1.638 ms/op MyBenchmark.testLookupPath avgt 50 18.935 ± 1.093 ms/op MyBenchmark.testLookupStr avgt 50 38.597 ± 1.663 ms/op MyBenchmark.testToRealPath avgt 50 30.119 ± 1.196 ms/op [jimage/new] MyBenchmark.testExists avgt 50 10.865 ± 1.125 ms/op MyBenchmark.testIsDirectory avgt 50 11.077 ± 1.101 ms/op MyBenchmark.testIsRegularFile avgt 50 10.967 ± 1.220 ms/op MyBenchmark.testItr avgt 50 49.249 ± 3.753 ms/op MyBenchmark.testLookupPath avgt 50 10.857 ± 1.071 ms/op MyBenchmark.testLookupStr avgt 50 34.367 ± 1.341 ms/op MyBenchmark.testToRealPath avgt 50 11.460 ± 1.081 ms/op ------------------------------------------------------------ [exploded dir/existing] MyBenchmark.testExists avgt 50 23.055 ± 1.707 ms/op MyBenchmark.testIsDirectory avgt 50 23.985 ± 1.593 ms/op MyBenchmark.testIsRegularFile avgt 50 24.200 ± 1.744 ms/op MyBenchmark.testItr avgt 50 210.002 ± 6.954 ms/op MyBenchmark.testLookupPath avgt 50 23.242 ± 1.799 ms/op MyBenchmark.testLookupStr avgt 50 43.026 ± 1.751 ms/op MyBenchmark.testToRealPath avgt 50 56.536 ± 1.679 ms/op [exploded dir/new] MyBenchmark.testExists avgt 50 11.260 ± 1.209 ms/op MyBenchmark.testIsDirectory avgt 50 11.702 ± 1.069 ms/op MyBenchmark.testIsRegularFile avgt 50 12.284 ± 1.333 ms/op MyBenchmark.testItr avgt 50 49.342 ± 1.516 ms/op MyBenchmark.testLookupPath avgt 50 11.041 ± 1.051 ms/op MyBenchmark.testLookupStr avgt 50 35.850 ± 1.618 ms/op MyBenchmark.testToRealPath avgt 50 13.016 ± 1.339 ms/op Thanks, Sherman
