cowwoc commented on pull request #104:
URL:
https://github.com/apache/maven-javadoc-plugin/pull/104#issuecomment-1014134830
@rfscholte Are you sure that `<jdkToolchain>` works properly?
@slawekjaranowski mentioned there are no tests for it and when I run the
following with JDK 8:
```
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-javadoc-plugin</artifactId>
<version>3.3.1</version>
<executions>
<execution>
<id>attach-javadocs</id>
<goals>
<goal>jar</goal>
</goals>
<configuration>
<jdkToolchain>
<version>11</version>
</jdkToolchain>
<!-- ... --->
</execution>
</executions>
</plugin>
```
I get:
```
[INFO] Toolchain in maven-javadoc-plugin: JDK[C:\Program
Files\Java\jdk-11.0.2]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute
goal org.apache.maven.plugins:maven-javadoc-plugin:3.3.1:jar (attach-javadocs)
on project core: Execution attach-javadocs of goal
org.apache.maven.plugins:maven-javadoc-plugin:3.3.1:jar failed.
[...]
Caused by: java.lang.UnsupportedOperationException
at
org.codehaus.plexus.languages.java.jpms.CmdModuleNameExtractor.getModuleName
(CmdModuleNameExtractor.java:46)
```
The exception seems to imply that JDK 8 is being used in spite of the JDK 11
toolchain resolving properly. Should I open a separate bug report for this?
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