Ian Young created MJAVADOC-517:
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Summary: NPE under Java 10 EA
Key: MJAVADOC-517
URL: https://issues.apache.org/jira/browse/MJAVADOC-517
Project: Maven Javadoc Plugin
Issue Type: Bug
Affects Versions: 3.0.0
Reporter: Ian Young
Under Java 10 EA, the plugin generates the following exception:
{code:java}
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.JavadocJar.doExecute
(JavadocJar.java:190)
{code}
This seems to be down to the version string:
{code:java}
java version "10" 2018-03-20
Java(TM) SE Runtime Environment 18.3 (build 10+43)
Java HotSpot(TM) 64-Bit Server VM 18.3 (build 10+43, mixed mode)
{code}
{{commons-lang3}} version 3.5 can't deal with this, see
https://issues.apache.org/jira/browse/LANG-1365
Inserting an explicit dependency on {{commons-lang3}} version 3.7 for the
plugin works round the issue, and seems the right fix for the next release of
this plugin.
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