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From "Rick Hillegas (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (DERBY-5485) Simplify PropertySetter so that it is less brittle and easier to maintain.
Date Tue, 15 Nov 2011 16:22:52 GMT

     [ https://issues.apache.org/jira/browse/DERBY-5485?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Rick Hillegas updated DERBY-5485:
---------------------------------

    Attachment: derby-5485-02-aa-fixBigDecimalInstantiators.diff

Attaching derby-5485-02-aa-fixBigDecimalInstantiators.diff. This fixes org.apache.derbyTesting.functionTests.tests.jdbcapi.ProcedureTest
so that it runs on JDK 1.4 again.  The previous patch broke that test because the compiler
was resolving BigDecimal instantiations to an initializer which was introduced in Java 5.
This patch changes those instantiations so that they are resolved to an initializer which
appears in JDK 1.4. For further information on this problem, see the following derby-dev email
thread: http://old.nabble.com/need-theories-about-errors-seen-in-the-jdk-1.4-test-runs-td32842864.html#a32842864

I have successfully run the patched test on Java 6 and JDK 1.4. Committed at subversion revision
1202276.

Touches the following file:

M       java/testing/org/apache/derbyTesting/functionTests/tests/jdbcapi/ProcedureTest.java

                
> Simplify PropertySetter so that it is less brittle and easier to maintain.
> --------------------------------------------------------------------------
>
>                 Key: DERBY-5485
>                 URL: https://issues.apache.org/jira/browse/DERBY-5485
>             Project: Derby
>          Issue Type: Improvement
>          Components: Build tools
>    Affects Versions: 10.9.0.0
>            Reporter: Rick Hillegas
>            Assignee: Rick Hillegas
>         Attachments: derby-5485-01-af-simplifyPlusJavadoc.diff, derby-5485-01-ag-changeJDBClevel.diff,
derby-5485-01-ah-changeJDBClevel.diff, derby-5485-02-aa-fixBigDecimalInstantiators.diff
>
>
> The PropertySetter task sets up classpath variables so that the build can take advantage
of JVM-specific class libraries. Using those libraries makes it possible for the compiler
to flag code which is supposed to run on less capable platforms but which calls methods from
later JVMs. This is a very tricky problem and we seem to have reached consensus that it requires
too much effort to make PropertySetter run correctly in all of the build environments which
Derby developers use. I will attach a proposal for how to simplify PropertySetter so that
it requires less effort to maintain.

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