8370
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Ran 17 Dec 2015 02:48PM UTC

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Build # 8370

Build Type

push

travis-ci

Committed by

ericzundel

Commit Message

prefer explicit jvm locations over internal heuristics

Previously if --jvm-distributions-paths was not provided, pants
searched for jvms in the folling order:
 (A) JAVA_HOME/JDK_HOME
 (B) Look at common file system locations
 (C) java on PATH

This commit change that order to always prefer the explicit user
configurations (A, C) over heuristics (B).  Besides just being more
consistent, this means when a user gets an error about java not
working when invoked by pants, they are more likely to be using the
same jdk when they try to reproduce it.

An additional benefit is that the user chosen jvm likely "works"
(without pants needing to maintain careful min/max version constraints
for every too), while old EOL things in /usr/lib/jvm may not.  For
example our Centos6 CI server has the super old `java-1.5.0-gcj`
package, which does not work with modern ivy.

fixes #2682

Bugs closed: 2689

Reviewed at https://rbcommons.com/s/twitter/r/3231/

Coverage Stats

Jobs

ID	Job ID	Ran
1	8370.1 (CI_FLAGS="-cjlpn 'Various pants self checks'")	17 Dec 2015 02:49PM UTC	Travis Job 8370.1
4	8370.4 (CI_FLAGS="-fkmsrcjlp 'Python contrib tests'")	17 Dec 2015 02:59PM UTC	Travis Job 8370.4
5	8370.5 (CI_FLAGS="-fkmsrjlpn -i 0/6 'Python integration tests for pants - shard 1'")	17 Dec 2015 02:48PM UTC	Travis Job 8370.5
6	8370.6 (CI_FLAGS="-fkmsrjlpn -i 1/6 'Python integration tests for pants - shard 2'")	17 Dec 2015 02:58PM UTC	Travis Job 8370.6
7	8370.7 (CI_FLAGS="-fkmsrjlpn -i 2/6 'Python integration tests for pants - shard 3'")	17 Dec 2015 02:56PM UTC	Travis Job 8370.7
8	8370.8 (CI_FLAGS="-fkmsrjlpn -i 3/6 'Python integration tests for pants - shard 4'")	17 Dec 2015 03:01PM UTC	Travis Job 8370.8
9	8370.9 (CI_FLAGS="-fkmsrjlpn -i 4/6 'Python integration tests for pants - shard 5'")	17 Dec 2015 03:04PM UTC	Travis Job 8370.9
10	8370.10 (CI_FLAGS="-fkmsrjlpn -i 5/6 'Python integration tests for pants - shard 6'")	17 Dec 2015 03:10PM UTC	Travis Job 8370.10

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