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https://issues.apache.org/jira/browse/DERBY-4263?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12742585#action_12742585
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Kristian Waagan commented on DERBY-4263:
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Do you mind posting the list of the JVMs detected? (as printed by the build
script when using printCompilerProperties=true)
I'd like to understand why the IBM JDK that used to get picked, dosen't
anymore. My only educated guess would be that the metadata extracted from the
JARs is incorrect / inaccurate and that the Sun JDK you have installed has
version number considered to be higher - but I'd like to verify this. Of
course, I'm assuming the running JVM (used to invoke the build script) is a IBM
one.
I don't have any plans to backport this change.
> PropertySetter isn't able to recognize JDK without version number in path
> -------------------------------------------------------------------------
>
> Key: DERBY-4263
> URL: https://issues.apache.org/jira/browse/DERBY-4263
> Project: Derby
> Issue Type: Bug
> Components: Build tools
> Affects Versions: 10.6.0.0
> Reporter: Knut Anders Hatlen
> Assignee: Kristian Waagan
> Priority: Minor
> Fix For: 10.6.0.0
>
> Attachments: derby-4263-1a-jdk_detection_by_jars.diff,
> derby-4263-1b-jdk_detection_by_jars.diff
>
>
> With empty ant.properties and JDK 6 installed in /tmp/jdk as the only JDK on
> the system, PropertySetter complains that it's not able to set
> java16compile.classpath:
> ,----
> | [setJdkProperties]
> | [setJdkProperties] PropertySetter environment =
> | [setJdkProperties]
> | [setJdkProperties] java.vendor = Sun Microsystems Inc.
> | [setJdkProperties] java.home = /tmp/jdk/jre
> | [setJdkProperties] java.version = 1.6.0_13
> | [setJdkProperties] os.name = SunOS
> | [setJdkProperties] j14lib = null
> | [setJdkProperties] j15lib = null
> | [setJdkProperties] j16lib = null
> | [setJdkProperties]
> |
> | BUILD FAILED
> | /code/derby/trunk0/build.xml:203: Don't know how to set
> java15compile.classpath, java16compile.classpath using this environment:
> |
> | java.vendor = Sun Microsystems Inc.
> | java.home = /tmp/jdk/jre
> | java.version = 1.6.0_13
> | os.name = SunOS
> | j14lib = null
> | j15lib = null
> | j16lib = null
> `----
> Since it is able to detect both that the version of the default JDK is
> 1.6.0_13 and where it is installed, setting java16compile.classpath should be
> trivial.
> If the name of the JDK directory is changed from /tmp/jdk to /tmp/jdk1.6.0,
> Derby is built successfully.
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