[jira] [Created] (MJAVADOC-522) Javadoc generation broken on JDK 10 (Commons Lang3 gives NullPointerException)

["Daniel Fernández (JIRA)" <ji...@apache.org>]

Daniel Fernández created MJAVADOC-522:
-----------------------------------------

             Summary: Javadoc generation broken on JDK 10 (Commons Lang3 gives NullPointerException)
                 Key: MJAVADOC-522
                 URL: https://issues.apache.org/jira/browse/MJAVADOC-522
             Project: Maven Javadoc Plugin
          Issue Type: Bug
          Components: javadoc
    Affects Versions: 3.0.0
         Environment:  * JDK 10
 * Maven 3.5.3
 * Maven Javadoc plugin 3.0.0
            Reporter: Daniel Fernández


Executing {{javadoc:javadoc}} in JDK 10 throws a {{NullPointerException}} caused by Apache Commons Lang 3.5:

{code}
Caused by: java.lang.NullPointerException at org.apache.commons.lang3.SystemUtils.isJavaVersionAtLeast (SystemUtils.java:1626) at org.apache.maven.plugins.javadoc.AbstractJavadocMojo.getJavadocExecutable (AbstractJavadocMojo.java:3683) at org.apache.maven.plugins.javadoc.AbstractJavadocMojo.executeReport (AbstractJavadocMojo.java:2001) at org.apache.maven.plugins.javadoc.JavadocReport.generate (JavadocReport.java:134) at org.apache.maven.plugins.javadoc.JavadocReport.doExecute (JavadocReport.java:329) at org.apache.maven.plugins.javadoc.AbstractJavadocMojo.execute (AbstractJavadocMojo.java:1909) at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:137) at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:208) at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:154) at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:146) at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:117) at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:81) at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:56) at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:128) at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:305) at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192) at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105) at org.apache.maven.cli.MavenCli.execute (MavenCli.java:956) at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:290) at org.apache.maven.cli.MavenCli.main (MavenCli.java:194) at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
...
{code}

The reason for this is [LANG-1365|https://issues.apache.org/jira/browse/LANG-1365] which was fixed in [this commit|https://github.com/apache/commons-lang/commit/a618b844c5a261ced37385ab3947de6e215d46f7].

Updating to Apache Commons Lang 3.7 should solve the issue.

 



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