jira-importer opened a new issue, #1154: URL: https://github.com/apache/maven-javadoc-plugin/issues/1154
**[Sirisha Pratha](https://issues.apache.org/jira/secure/ViewProfile.jspa?name=JIRAUSER301445)** opened **[MJAVADOC-764](https://issues.apache.org/jira/browse/MJAVADOC-764?redirect=false)** and commented We have a multi-module project that is failing for javadoc:aggregate goal after upgrading to Java 11 for maven-javadoc-plugin versions 3.4.1 and 3.5.0. It worked fine without any issues for Java 1.8. This is our maven-javadoc plugin configuration for Java 8 - **SUCCESS** ``` <maven.compiler.source>8</maven.compiler.source> <plugin> <artifactId>maven-javadoc-plugin</artifactId> <configuration> <source>${maven.compiler.source}</source> <doctitle>Eclipse Collections - ${project.version}</doctitle> <windowtitle>Eclipse Collections - ${project.version}</windowtitle> <show>public</show> <detectJavaApiLink>true</detectJavaApiLink> <links> <link>https://junit.org/junit4/javadoc/latest</link> <link>https://docs.oracle.com/javase/8/docs/api/</link> </links> <destDir>${project.version}</destDir> <doclint>html,syntax,accessibility</doclint> <excludePackageNames> org.openjdk,org.eclipse.collections.impl.jmh,org.eclipse.collections.codegenerator,org.eclipse.collections.codegenerator.maven </excludePackageNames> </configuration> <executions> <execution> <id>aggregate</id> <inherited>false</inherited> <goals> <goal>aggregate</goal> </goals> </execution> </executions> </plugin> ``` This is our maven-javadoc plugin configuration for Java 11 - (the only difference is values in source and links tags) - **FAILS** (See error below) ``` <maven.compiler.source>11</maven.compiler.source> <plugin> <artifactId>maven-javadoc-plugin</artifactId> <configuration> <source>${maven.compiler.source}</source> <doctitle>Eclipse Collections - ${project.version}</doctitle> <windowtitle>Eclipse Collections - ${project.version}</windowtitle> <show>public</show> <detectJavaApiLink>true</detectJavaApiLink> <links> <link>https://junit.org/junit4/javadoc/latest</link> <link>https://docs.oracle.com/en/java/javase/11/docs/api</link> </links> <destDir>${project.version}</destDir> <doclint>html,syntax,accessibility</doclint> <excludePackageNames> org.openjdk,org.eclipse.collections.impl.jmh,org.eclipse.collections.codegenerator,org.eclipse.collections.codegenerator.maven </excludePackageNames> </configuration> <executions> <execution> <id>aggregate</id> <inherited>false</inherited> <goals> <goal>aggregate</goal> </goals> </execution> </executions> </plugin> ``` _javadoc:aggregate_ fails with the following error on our GitHub workflow (nothing changed in the way we run this job - we have always used Java 17 to run this) ``` Error: 6:236 [ERROR] Failed to execute goal org.apache.maven.plugins:maven-javadoc-plugin:3.4.1:aggregate (default-cli) on project eclipse-collections-parent: An error has occurred in Javadoc report generation: 515Error: 6:236 [ERROR] Exit code: 2 - Loading source files for package org.eclipse.collections.codegenerator.model... 516Error: 02:14:46:236 [ERROR] error: No source files for package org.eclipse.collections.codegenerator.model 517Error: 02:14:46:237 [ERROR] 1 error 518Error: 6:237 [ERROR] 519Error: 6:238 [ERROR] Command line was: /opt/hostedtoolcache/Java_Zulu_jdk/17.0.7-7/x64/bin/javadoc @options @packages 520Error: 6:238 [ERROR] 521Error: 6:238 [ERROR] Refer to the generated Javadoc files in '/home/runner/work/eclipse-collections/eclipse-collections/target/site/apidocs/12.0.0-SNAPSHOT' dir. 522Error: 6:239 [ERROR] 523Error: 6:240 [ERROR] -> [Help 1] ``` Solutions we tried - 1. Configuring sourcePath (see below) - in this case, **no Javadoc was created** in target/site/apidocs. ``` <sourcepath>${project.build.sourceDirectory}</sourcepath> ``` 1. Tried both plugin versions 3.4.1 and 3.5.0 - **fails** with both versions. 2. Tried to add source = 1.8 but maven.compiler.source = 11, which seems to be the only combination that {**}works{**}. Like so - ``` <maven.compiler.source>11</maven.compiler.source> <plugin> <artifactId>maven-javadoc-plugin</artifactId> <configuration> <source>1.8</source> <doctitle>Eclipse Collections - ${project.version}</doctitle> <windowtitle>Eclipse Collections - ${project.version}</windowtitle> <show>public</show> <detectJavaApiLink>true</detectJavaApiLink> <links> <link>https://junit.org/junit4/javadoc/latest</link> <link>https://docs.oracle.com/en/java/javase/11/docs/api</link> </links> <destDir>${project.version}</destDir> <doclint>html,syntax,accessibility</doclint> <excludePackageNames> org.openjdk,org.eclipse.collections.impl.jmh,org.eclipse.collections.codegenerator,org.eclipse.collections.codegenerator.maven </excludePackageNames> <additionalOptions>-html5</additionalOptions> </configuration> <reportSets> <reportSet> <id>aggregate</id> <inherited>false</inherited> <reports> <report>aggregate</report> </reports> </reportSet> </reportSets> </plugin> ``` What are we missing as we ideally would like to have both source and maven. compiler.source as the same value which is 11. --- **Affects:** 3.5.0 -- This is an automated message from the Apache Git Service. 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