org.codehaus.mojo:versions-maven-plugin:2.16.0:display-dependency-updates failed: Cannot invoke "Object.toString()" because "otherVersion" is null

The project for which the plugin was called: https://github.com/publicLibs/RollingMavenHeader/commit/0a93dbce4c6657f816362971654d862d9798d510

command

mvn versions:display-dependency-updates -X > FULL_ERROR_X.txt

FULL_ERROR_X.txt

It can be connected with: #951 and https://issues.apache.org/jira/browse/MNG-7780

I'll check.

So this is about a versionless dependency of the spotbugs plugin:

<dependency>
  <groupId>com.github.spotbugs</groupId>
  <artifactId>spotbugs</artifactId>
</dependency>

Anyway, I see that something's not right even in 2.14.2 since we're trying to retrieve updates for com.github.spotbugs:spotbugs:jar:[,0]... which will be satisfied by any possible version. But I think that is a separate issue which is probably present in more places. To be investigated.

Resolves mojohaus#973: NPE if actual version is null for a dependency

@freedom1b2830

@freedom1b2830 can you prepare simple project with one plugin and try also to execute plugin with such configuration ... for me it will not working

mojohaus#973: added a description

Resolves #973: NPE if actual version is null for a dependency (#974)

@freedom1b2830

@freedom1b2830 can you prepare simple project with one plugin and try also to execute plugin with such configuration ... for me it will not working

@slawekjaranowski

<project xmlns="http://maven.apache.org/POM/4.0.0"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
	<modelVersion>4.0.0</modelVersion>
	<groupId>issue973</groupId>
	<artifactId>issue973</artifactId>
	<version>issue973</version>
	<packaging>pom</packaging>
	<properties>
		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
		<maven.compiler.source>1.8</maven.compiler.source>
		<maven.compiler.target>1.8</maven.compiler.target>
	</properties>
	<dependencyManagement>
		<dependencies>
			<dependency>
				<groupId>com.github.spotbugs</groupId>
				<artifactId>spotbugs</artifactId>
				<version>4.7.3</version>
			</dependency>
		</dependencies>
	</dependencyManagement>
	<build>
		<pluginManagement>
			<plugins>
				<plugin>
					<groupId>com.github.spotbugs</groupId>
					<artifactId>spotbugs-maven-plugin</artifactId>
					<version>4.7.3.4</version>
					<dependencies>
						<dependency>
							<groupId>com.github.spotbugs</groupId>
							<artifactId>spotbugs</artifactId>
							<!-- NPE -->
						</dependency>
					</dependencies>
				</plugin>
			</plugins>
		</pluginManagement>
	</build>
</project>

What result will be if you execute for such project:

mvn spotbugs:check

Error if given pom.xml is called

(If I call spotbugs:check on a project that is a child of this pom.xml, then the check succeeds)

proj1 this pom call spotbugs:check ERROR
proj2 ( proj1) call spotbugs:check OK

The problem is initially with maven versions and does not apply to the call to spotbugs:check (the version to call is determined successfully from dependencyManagement)

I hope the fix is successful (#974)

[INFO] Scanning for projects...
[INFO] 
[INFO] -------------------------< issue973:issue973 >--------------------------
[INFO] Building issue973 issue973
[INFO] --------------------------------[ pom ]---------------------------------
[INFO] 
[INFO] >>> spotbugs-maven-plugin:4.7.3.4:check (default-cli) > :spotbugs @ issue973 >>>
[INFO] 
[INFO] --- spotbugs-maven-plugin:4.7.3.4:spotbugs (spotbugs) @ issue973 ---
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  1.909 s
[INFO] Finished at: 2023-06-24T22:03:26Z
[INFO] ------------------------------------------------------------------------
[ERROR] version can neither be null, empty nor blank
[ERROR] 
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging

java.lang.IllegalArgumentException: version can neither be null, empty nor blank
    at org.apache.commons.lang3.Validate.notBlank (Validate.java:441)
    at org.apache.maven.artifact.ArtifactUtils.notBlank (ArtifactUtils.java:107)
    at org.apache.maven.artifact.ArtifactUtils.key (ArtifactUtils.java:97)
    at org.apache.maven.ReactorReader.findArtifact (ReactorReader.java:101)
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve (DefaultArtifactResolver.java:312)
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifacts (DefaultArtifactResolver.java:235)
    at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifact (DefaultArtifactResolver.java:212)
    at org.apache.maven.repository.internal.DefaultArtifactDescriptorReader.loadPom (DefaultArtifactDescriptorReader.java:240)
    at org.apache.maven.repository.internal.DefaultArtifactDescriptorReader.readArtifactDescriptor (DefaultArtifactDescriptorReader.java:171)
    at org.eclipse.aether.internal.impl.collect.DefaultDependencyCollector.resolveCachedArtifactDescriptor (DefaultDependencyCollector.java:541)
    at org.eclipse.aether.internal.impl.collect.DefaultDependencyCollector.getArtifactDescriptorResult (DefaultDependencyCollector.java:526)
    at org.eclipse.aether.internal.impl.collect.DefaultDependencyCollector.processDependency (DefaultDependencyCollector.java:413)
    at org.eclipse.aether.internal.impl.collect.DefaultDependencyCollector.processDependency (DefaultDependencyCollector.java:365)
    at org.eclipse.aether.internal.impl.collect.DefaultDependencyCollector.process (DefaultDependencyCollector.java:353)
    at org.eclipse.aether.internal.impl.collect.DefaultDependencyCollector.collectDependencies (DefaultDependencyCollector.java:258)
    at org.eclipse.aether.internal.impl.DefaultRepositorySystem.collectDependencies (DefaultRepositorySystem.java:300)
    at org.apache.maven.plugin.internal.DefaultPluginDependenciesResolver.resolveInternal (DefaultPluginDependenciesResolver.java:218)
    at org.apache.maven.plugin.internal.DefaultPluginDependenciesResolver.resolve (DefaultPluginDependenciesResolver.java:165)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.createPluginRealm (DefaultMavenPluginManager.java:404)
    at org.apache.maven.plugin.internal.DefaultMavenPluginManager.setupPluginRealm (DefaultMavenPluginManager.java:374)
    at org.apache.maven.plugin.DefaultBuildPluginManager.getPluginRealm (DefaultBuildPluginManager.java:234)
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:105)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute2 (MojoExecutor.java:370)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute (MojoExecutor.java:351)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:215)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:171)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:163)
    at org.apache.maven.lifecycle.internal.MojoExecutor.executeForkedExecutions (MojoExecutor.java:508)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute (MojoExecutor.java:345)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:215)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:171)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:163)
    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:294)
    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:960)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:293)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:196)
    at jdk.internal.reflect.DirectMethodHandleAccessor.invoke (DirectMethodHandleAccessor.java:104)
    at java.lang.reflect.Method.invoke (Method.java:578)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:282)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:225)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:406)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:347)

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org.codehaus.mojo:versions-maven-plugin:2.16.0:display-dependency-updates failed: Cannot invoke "Object.toString()" because "otherVersion" is null #973

The problem is initially with maven versions and does not apply to the call to spotbugs:check (the version to call is determined successfully from dependencyManagement)

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org.codehaus.mojo:versions-maven-plugin:2.16.0:display-dependency-updates failed: Cannot invoke "Object.toString()" because "otherVersion" is null #973

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slawekjaranowski commented on Jun 9, 2023

andrzejj0 commented on Jun 9, 2023

andrzejj0 commented on Jun 9, 2023

slawekjaranowski commented on Jun 23, 2023

freedom1b2830 commented on Jun 24, 2023

slawekjaranowski commented on Jun 24, 2023

freedom1b2830 commented on Jun 24, 2023

The problem is initially with maven versions and does not apply to the call to spotbugs:check (the version to call is determined successfully from dependencyManagement)

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