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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