[jira] Updated: (DERBY-4893) Allow Java 5 language constructs in build code

["Knut Anders Hatlen (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/DERBY-4893?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Knut Anders Hatlen updated DERBY-4893:
--------------------------------------

    Attachment: build-java5.diff

The attached patch changes source and target level to 1.5 in java/build/org/apache/derbyBuild/build.xml. This made the compiler emit some "unchecked" warnings, so the patch also changes some variable declarations in the build code to silence the warnings.

All the regression tests ran cleanly with the patch.

> Allow Java 5 language constructs in build code
> ----------------------------------------------
>
>                 Key: DERBY-4893
>                 URL: https://issues.apache.org/jira/browse/DERBY-4893
>             Project: Derby
>          Issue Type: Improvement
>          Components: Build tools
>    Affects Versions: 10.7.1.0
>            Reporter: Knut Anders Hatlen
>            Assignee: Knut Anders Hatlen
>            Priority: Minor
>         Attachments: build-java5.diff
>
>
> We already allow the use of methods and classes that only exist in Java 5 and higher in code that only runs at build time, but java/build/org/apache/derbyBuild/build.xml specifies source and target level "1.4", so we cannot use the new syntax introduced in Java 5. I think we should also change source and target level to allow the new (well, not so new anymore...) language constructs.
> (I noticed this when I started writing code to perform sanity checking of the message files at build time (DERBY-4796) and couldn't use the simpler for loop syntax.)

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