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https://issues.apache.org/jira/browse/LUCENE-9747?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17281817#comment-17281817
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David Eric Pugh commented on LUCENE-9747:
-----------------------------------------
I have Java 11.0.3+7:
➜ lucene-solr-epugh git:(SOLR-15121) ✗ java --version
openjdk 11.0.3 2019-04-16
And here is the stack trace (take 2):
{{javadoc: error - fatal error encountered: java.lang.NullPointerException}}
{{javadoc: error - Please file a bug against the javadoc tool via the Java bug
reporting page}}
{{(}}{{[http://bugreport.java.com|http://bugreport.java.com/]}}{{) after
checking the Bug Database
(}}{{[http://bugs.java.com|http://bugs.java.com/]}}{{)}}
{{for duplicates. Include error messages and the following diagnostic in your
report. Thank you.}}
{{java.lang.NullPointerException}}
{{ at
jdk.javadoc/jdk.javadoc.internal.tool.Messager.getDiagSource(Messager.java:206)}}
{{ at
jdk.javadoc/jdk.javadoc.internal.tool.Messager.printError(Messager.java:234)}}
{{ at
jdk.javadoc/jdk.javadoc.internal.tool.Messager.print(Messager.java:121)}}
{{ at
org.apache.lucene.missingdoclet.MissingDoclet.error(MissingDoclet.java:434)}}
{{ at
org.apache.lucene.missingdoclet.MissingDoclet.checkComment(MissingDoclet.java:309)}}
{{ at
org.apache.lucene.missingdoclet.MissingDoclet.check(MissingDoclet.java:237)}}
{{ at
org.apache.lucene.missingdoclet.MissingDoclet.run(MissingDoclet.java:205)}}
{{ at
jdk.javadoc/jdk.javadoc.internal.tool.Start.parseAndExecute(Start.java:582)}}
{{ at jdk.javadoc/jdk.javadoc.internal.tool.Start.begin(Start.java:431)}}
{{ at jdk.javadoc/jdk.javadoc.internal.tool.Start.begin(Start.java:344)}}
{{ at jdk.javadoc/jdk.javadoc.internal.tool.Main.execute(Main.java:63)}}
{{ at jdk.javadoc/jdk.javadoc.internal.tool.Main.main(Main.java:52)}}
> Missing package-info.java causes NPE in MissingDoclet.java
> ----------------------------------------------------------
>
> Key: LUCENE-9747
> URL: https://issues.apache.org/jira/browse/LUCENE-9747
> Project: Lucene - Core
> Issue Type: Improvement
> Components: general/javadocs
> Affects Versions: master (9.0)
> Reporter: David Eric Pugh
> Priority: Minor
> Attachments: LUCENE-9747.patch
>
> Time Spent: 1h 50m
> Remaining Estimate: 0h
>
> When running {{./gradlew :solr:core:javadoc}} discovered that if a package
> directory is missing the {{package-info.java}} file you get a VERY cryptic
> error:
>
> {{javadoc: error - fatal error encountered: java.lang.NullPointerException}}
> {{javadoc: error - Please file a bug against the javadoc tool via the Java
> bug reporting page}}
>
> I poked around and that the {{MissingDoclet.java}} method call to
> \{{reporter.print(Diagnostic.Kind.ERROR, element, fullMessage.toString());}}
> was failing, due to the element having some sort of null in it. I am
> attaching a patch and a PR.
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