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Bug
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Resolution: Not A Defect
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Major
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None
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Jenkins ver. 2.73.1, completely new installation
Jenkins installs Java twice if latest jdk is specified from tools configuration.
first, jdk1.8.0_121 will be installed if no java present on target slave and it may be checked from http://<jenkins>/computer/<slave>/log.
second, jdk1.8.0_144 will be installed on slave, it may be checked from http://<jenkins>/job/<jobname>/<buildnum>/console
but only jdk1.8.0_144 is specified for installation in http://<jenkins>/configureTools/
I think it's a bug, because it doubles network traffic on massive slave creation.
for example, if 100 slaves should be created - it will be 175M * 100 unnecessarily downloaded data. we may create/destroy up to 1000 slaves per day, so it's a bug for us