Gary D. Gregory created MJAVADOC-793:
----------------------------------------
Summary: java.lang.NullPointerException: Cannot invoke
"String.length()" because "text" is null
Key: MJAVADOC-793
URL: https://issues.apache.org/jira/browse/MJAVADOC-793
Project: Maven Javadoc Plugin
Issue Type: Bug
Affects Versions: 3.6.3
Reporter: Gary D. Gregory
Plugin throws {{NullPointerException}} when running {{{}javadoc:javadoc{}}}.
See:
* Failing PR: https://github.com/apache/commons-compress/pull/528
* Build log:
[https://github.com/apache/commons-compress/actions/runs/9113449616/job/25054982405?pr=528]
Or:
# git clone [https://gitbox.apache.org/repos/asf/commons-compress.git]
# git checkout 542cc5a602a9128932e3fb75503383e481141e7e
# Edit pom.xml and set the parent POM to version 70
# Run 'mvn javadoc:javadoc' causes:
{noformat}
[INFO] --- javadoc:3.6.3:javadoc (default-cli) @ commons-compress ---
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 8.434 s
[INFO] Finished at: 2024-05-16T09:36:02-04:00
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal
org.apache.maven.plugins:maven-javadoc-plugin:3.6.3:javadoc (default-cli) on
project commons-compress: Execution default-cli of goal
org.apache.maven.plugins:maven-javadoc-plugin:3.6.3:javadoc failed: Cannot
invoke "String.length()" because "text" is null -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal
org.apache.maven.plugins:maven-javadoc-plugin:3.6.3:javadoc (default-cli) on
project commons-compress: Execution default-cli of goal
org.apache.maven.plugins:maven-javadoc-plugin:3.6.3:javadoc failed: Cannot
invoke "String.length()" because "text" is null
at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute2
(MojoExecutor.java:333)
at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute
(MojoExecutor.java:316)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute
(MojoExecutor.java:212)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute
(MojoExecutor.java:174)
at org.apache.maven.lifecycle.internal.MojoExecutor.access$000
(MojoExecutor.java:75)
at org.apache.maven.lifecycle.internal.MojoExecutor$1.run
(MojoExecutor.java:162)
at org.apache.maven.plugin.DefaultMojosExecutionStrategy.execute
(DefaultMojosExecutionStrategy.java:39)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute
(MojoExecutor.java:159)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject
(LifecycleModuleBuilder.java:105)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject
(LifecycleModuleBuilder.java:73)
at
org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build
(SingleThreadedBuilder.java:53)
at org.apache.maven.lifecycle.internal.LifecycleStarter.execute
(LifecycleStarter.java:118)
at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:261)
at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:173)
at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:101)
at org.apache.maven.cli.MavenCli.execute (MavenCli.java:906)
at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:283)
at org.apache.maven.cli.MavenCli.main (MavenCli.java:206)
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke
(NativeMethodAccessorImpl.java:77)
at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke
(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke (Method.java:568)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced
(Launcher.java:283)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch
(Launcher.java:226)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode
(Launcher.java:407)
at org.codehaus.plexus.classworlds.launcher.Launcher.main
(Launcher.java:348)
Caused by: org.apache.maven.plugin.PluginExecutionException: Execution
default-cli of goal org.apache.maven.plugins:maven-javadoc-plugin:3.6.3:javadoc
failed: Cannot invoke "String.length()" because "text" is null
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo
(DefaultBuildPluginManager.java:133)
at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute2
(MojoExecutor.java:328)
at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute
(MojoExecutor.java:316)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute
(MojoExecutor.java:212)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute
(MojoExecutor.java:174)
at org.apache.maven.lifecycle.internal.MojoExecutor.access$000
(MojoExecutor.java:75)
at org.apache.maven.lifecycle.internal.MojoExecutor$1.run
(MojoExecutor.java:162)
at org.apache.maven.plugin.DefaultMojosExecutionStrategy.execute
(DefaultMojosExecutionStrategy.java:39)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute
(MojoExecutor.java:159)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject
(LifecycleModuleBuilder.java:105)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject
(LifecycleModuleBuilder.java:73)
at
org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build
(SingleThreadedBuilder.java:53)
at org.apache.maven.lifecycle.internal.LifecycleStarter.execute
(LifecycleStarter.java:118)
at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:261)
at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:173)
at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:101)
at org.apache.maven.cli.MavenCli.execute (MavenCli.java:906)
at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:283)
at org.apache.maven.cli.MavenCli.main (MavenCli.java:206)
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke
(NativeMethodAccessorImpl.java:77)
at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke
(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke (Method.java:568)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced
(Launcher.java:283)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch
(Launcher.java:226)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode
(Launcher.java:407)
at org.codehaus.plexus.classworlds.launcher.Launcher.main
(Launcher.java:348)
Caused by: java.lang.NullPointerException: Cannot invoke "String.length()"
because "text" is null
at org.codehaus.plexus.util.xml.pull.MXSerializer.writeElementContent
(MXSerializer.java:912)
at org.codehaus.plexus.util.xml.pull.MXSerializer.text
(MXSerializer.java:780)
at
org.apache.maven.plugins.javadoc.options.io.xpp3.JavadocOptionsXpp3Writer.writeJavadocOptions
(JavadocOptionsXpp3Writer.java:287)
at
org.apache.maven.plugins.javadoc.options.io.xpp3.JavadocOptionsXpp3Writer.write
(JavadocOptionsXpp3Writer.java:81)
at org.apache.maven.plugins.javadoc.AbstractJavadocMojo.buildJavadocOptions
(AbstractJavadocMojo.java:6017)
at org.apache.maven.plugins.javadoc.AbstractJavadocMojo.executeReport
(AbstractJavadocMojo.java:1870)
at org.apache.maven.plugins.javadoc.JavadocReport.generate
(JavadocReport.java:135)
at org.apache.maven.plugins.javadoc.JavadocReport.doExecute
(JavadocReport.java:304)
at org.apache.maven.plugins.javadoc.AbstractJavadocMojo.execute
(AbstractJavadocMojo.java:1825)
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo
(DefaultBuildPluginManager.java:126)
at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute2
(MojoExecutor.java:328)
at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute
(MojoExecutor.java:316)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute
(MojoExecutor.java:212)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute
(MojoExecutor.java:174)
at org.apache.maven.lifecycle.internal.MojoExecutor.access$000
(MojoExecutor.java:75)
at org.apache.maven.lifecycle.internal.MojoExecutor$1.run
(MojoExecutor.java:162)
at org.apache.maven.plugin.DefaultMojosExecutionStrategy.execute
(DefaultMojosExecutionStrategy.java:39)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute
(MojoExecutor.java:159)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject
(LifecycleModuleBuilder.java:105)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject
(LifecycleModuleBuilder.java:73)
at
org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build
(SingleThreadedBuilder.java:53)
at org.apache.maven.lifecycle.internal.LifecycleStarter.execute
(LifecycleStarter.java:118)
at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:261)
at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:173)
at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:101)
at org.apache.maven.cli.MavenCli.execute (MavenCli.java:906)
at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:283)
at org.apache.maven.cli.MavenCli.main (MavenCli.java:206)
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke
(NativeMethodAccessorImpl.java:77)
at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke
(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke (Method.java:568)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced
(Launcher.java:283)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch
(Launcher.java:226)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode
(Launcher.java:407)
at org.codehaus.plexus.classworlds.launcher.Launcher.main
(Launcher.java:348)
{noformat}
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