[MNG-7834] NPE in flatten-maven-plugin

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 4.0.0-alpha-7
• Fix Version/s: 4.0.0-alpha-8, 4.0.0
• Assignee: Guillaume Nodet
• Reporter: Guillaume Nodet
• Created: 04/Jul/23 05:28
• Updated: 20/Oct/23 07:57
• Resolved: 05/Jul/23 13:49

Description

The flatten-maven-plugin fails with a NullPointerException:

[ERROR] Failed to execute goal org.codehaus.mojo:flatten-maven-plugin:1.5.0:flatten (default-cli) on project camel: failed to create a clean pom: Cannot invoke "java.util.List.stream()" because "dependencies" is null -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.codehaus.mojo:flatten-maven-plugin:1.5.0:flatten (default-cli) on project camel: failed to create a clean pom
	at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute2(MojoExecutor.java:341)
	at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute(MojoExecutor.java:324)
	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:77)
	at org.apache.maven.lifecycle.internal.MojoExecutor$1.run(MojoExecutor.java:162)
	at org.apache.maven.plugin.DefaultMojosExecutionStrategy.execute(DefaultMojosExecutionStrategy.java:39)
	at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:159)
	at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:114)
	at io.takari.maven.builder.smart.SmartBuilderImpl.buildProject(SmartBuilderImpl.java:204)
	at io.takari.maven.builder.smart.SmartBuilderImpl$ProjectBuildTask.run(SmartBuilderImpl.java:78)
	at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:577)
	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:317)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642)
	at java.base/java.lang.Thread.run(Thread.java:1623)
Caused by: org.apache.maven.plugin.MojoExecutionException: failed to create a clean pom
	at org.codehaus.mojo.flatten.FlattenMojo.createFlattenedPom(FlattenMojo.java:556)
	at org.codehaus.mojo.flatten.FlattenMojo.execute(FlattenMojo.java:406)
	at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:143)
	at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute2(MojoExecutor.java:336)
	... 15 common frames omitted
Caused by: java.lang.NullPointerException: Cannot invoke "java.util.List.stream()" because "dependencies" is null
	at org.apache.maven.model.ModelBase.setDependencies(ModelBase.java:164)
	at org.codehaus.mojo.flatten.FlattenMojo.createCleanPom(FlattenMojo.java:686)
	at org.codehaus.mojo.flatten.FlattenMojo.createFlattenedPom(FlattenMojo.java:554)
	... 18 common frames omitted

Issue Links

• links to: GitHub Pull Request #1195