[jboss-jira] [JBoss JIRA] (WFLY-4540) NPE if dependency missing

NPE if dependency missing ------------------------- Key: WFLY-4540 URL: https://issues.jboss.org/browse/WFLY-4540 Project: WildFly Issue Type: Bug Components: Build System Affects Versions: 9.0.0.Beta2 Reporter: Stan Silvert Assignee: Stan Silvert Fix For: 10.0.0.Alpha4 When creating a feature pack, a missing dependency caused the AetherArtifactFile resolver to throw an NPE. However, it did not give any clue as to which dependency was missing. I will submit a patch for this so that a proper error message can accompany a RuntimeException. Here is the stack trace for the NPE: {noformat} org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.wildfly.build:wildfly-feature-pack-build-maven-plugin:1.0.0.Alpha8:build (feature-pack- build) on project keycloak-feature-pack-adapter: Execution feature-pack-build of goal org.wildfly.build:wildfly-feature-pack-build-maven-plugin:1.0.0.Alpha8:build failed: java.lang.RuntimeException: java.lang.NullPointerException at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:224) at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153) at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145) at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:116) at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:80) at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:51) at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:120) at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:347) at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:154) at org.apache.maven.cli.MavenCli.execute(MavenCli.java:582) at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:214) at org.apache.maven.cli.MavenCli.main(MavenCli.java:158) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:497) at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289) at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229) at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415) at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356) Caused by: org.apache.maven.plugin.PluginExecutionException: Execution feature-pack-build of goal org.wildfly.build:wildfly-feature-pack-build-maven-plugin:1.0.0.Alpha8:b uild failed: java.lang.RuntimeException: java.lang.NullPointerException at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:143) at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:208) ... 19 more Caused by: java.lang.RuntimeException: java.lang.RuntimeException: java.lang.NullPointerException at org.wildfly.build.plugin.FeaturePackBuildMojo.execute(FeaturePackBuildMojo.java:119) at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:132) ... 20 more Caused by: java.lang.RuntimeException: java.lang.NullPointerException at org.wildfly.build.featurepack.FeaturePackBuilder.build(FeaturePackBuilder.java:87) at org.wildfly.build.plugin.FeaturePackBuildMojo.execute(FeaturePackBuildMojo.java:117) ... 21 more Caused by: java.lang.NullPointerException at org.wildfly.build.AetherArtifactFileResolver.getArtifactFile(AetherArtifactFileResolver.java:66) at org.wildfly.build.pack.model.FeaturePackFactory.createPack(FeaturePackFactory.java:66) at org.wildfly.build.pack.model.FeaturePackFactory.createPack(FeaturePackFactory.java:50) at org.wildfly.build.featurepack.FeaturePackBuilder.processDependencies(FeaturePackBuilder.java:108) at org.wildfly.build.featurepack.FeaturePackBuilder.build(FeaturePackBuilder.java:81) ... 22 more [ERROR] {noformat}