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https://issues.apache.org/jira/browse/DERBY-7110?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17370302#comment-17370302
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Richard N. Hillegas commented on DERBY-7110:
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Attaching derby-7110-03-aa-forkAntJavaTask.diff. This patch suppresses the new
warnings which appeared when compiling Derby with 17-ea+28-2534. With this
patch, I can cleanly build Derby, including jar files and javadoc.
The new warnings were coming from the message splitting/verifying programs
which we run as part of compilation. The warnings are runtime diagnostics
produced when java.lang.System.setSecurityManager() is called by some machinery
internal to the ant <java> task. I don't know why these warnings appear with
17-ea+28-2534 but not with the previous Open JDK 17 builds. I assume that this
is related to more work on JEP 411.
I suppressed the warnings by adding
{noformat}
fork="yes"
{noformat}
directives to the <java> invocations. No doubt the warnings are still being
produced, but with the forked JVM they go into a logfile which we don't examine.
I will run the usual tests. Touches the following file:
{noformat}
M build.xml
{noformat}
> Make it possible to build and test Derby cleanly with OpenJDK 17
> ----------------------------------------------------------------
>
> Key: DERBY-7110
> URL: https://issues.apache.org/jira/browse/DERBY-7110
> Project: Derby
> Issue Type: Task
> Components: Build tools
> Affects Versions: 10.16.0.0
> Reporter: Richard N. Hillegas
> Assignee: Richard N. Hillegas
> Priority: Major
> Attachments: derby-7110-01-aa-removeAngleBrackets.diff,
> derby-7110-02-aa-suppressWarnings.diff, derby-7110-03-aa-forkAntJavaTask.diff
>
>
> Releases of Open JDK 17 can be found at https://jdk.java.net/17/. We should
> adjust Derby as necessary so that it builds cleanly (including javadoc) and
> tests cleanly with this version of the platform.
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