java.lang.NullPointerException

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  • Cannot add Maven "snapshot" as a project library
    via by Unknown author,
  • Bug on Importing Sources for Maven Artifact
    via by Unknown author,
    • java.lang.NullPointerException at org.sonatype.aether.impl.internal.DefaultMetadataResolver.resolve(DefaultMetadataResolver.java:279) at org.sonatype.aether.impl.internal.DefaultMetadataResolver.resolveMetadata(DefaultMetadataResolver.java:173) at org.apache.maven.repository.internal.DefaultVersionResolver.resolveVersion(DefaultVersionResolver.java:225) at org.sonatype.aether.impl.internal.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:272) at org.sonatype.aether.impl.internal.DefaultArtifactResolver.resolveArtifacts(DefaultArtifactResolver.java:216) at org.sonatype.aether.impl.internal.DefaultArtifactResolver.resolveArtifact(DefaultArtifactResolver.java:193) at org.sonatype.aether.impl.internal.DefaultRepositorySystem.resolveArtifact(DefaultRepositorySystem.java:286) at org.apache.maven.project.ProjectModelResolver.resolveModel(ProjectModelResolver.java:155) at org.apache.maven.model.building.DefaultModelBuilder.readParentExternally(DefaultModelBuilder.java:813) at org.apache.maven.model.building.DefaultModelBuilder.readParent(DefaultModelBuilder.java:664) at org.apache.maven.model.building.DefaultModelBuilder.build(DefaultModelBuilder.java:310) at org.apache.maven.model.building.DefaultModelBuilder.build(DefaultModelBuilder.java:232) at org.apache.maven.project.DefaultProjectBuilder.build(DefaultProjectBuilder.java:142) at org.apache.maven.project.DefaultProjectBuilder.build(DefaultProjectBuilder.java:309) at org.apache.maven.project.DefaultProjectBuilder.build(DefaultProjectBuilder.java:267) at org.apache.maven.project.artifact.MavenMetadataSource.retrieveRelocatedProject(MavenMetadataSource.java:579) at org.apache.maven.project.artifact.MavenMetadataSource.retrieve(MavenMetadataSource.java:192) at org.apache.maven.repository.legacy.resolver.DefaultLegacyArtifactCollector.recurse(DefaultLegacyArtifactCollector.java:532) at org.apache.maven.repository.legacy.resolver.DefaultLegacyArtifactCollector.recurse(DefaultLegacyArtifactCollector.java:584) at org.apache.maven.repository.legacy.resolver.DefaultLegacyArtifactCollector.recurse(DefaultLegacyArtifactCollector.java:584) at org.apache.maven.repository.legacy.resolver.DefaultLegacyArtifactCollector.recurse(DefaultLegacyArtifactCollector.java:584) at org.apache.maven.repository.legacy.resolver.DefaultLegacyArtifactCollector.recurse(DefaultLegacyArtifactCollector.java:584) at org.apache.maven.repository.legacy.resolver.DefaultLegacyArtifactCollector.recurse(DefaultLegacyArtifactCollector.java:584) at org.apache.maven.repository.legacy.resolver.DefaultLegacyArtifactCollector.recurse(DefaultLegacyArtifactCollector.java:584) at org.apache.maven.repository.legacy.resolver.DefaultLegacyArtifactCollector.collect(DefaultLegacyArtifactCollector.java:144) at org.jetbrains.idea.maven.server.embedder.CustomMaven3ArtifactResolver.resolve(CustomMaven3ArtifactResolver.java:458) at org.jetbrains.idea.maven.server.embedder.CustomMaven3ArtifactResolver.resolveWithExceptions(CustomMaven3ArtifactResolver.java:313) at org.jetbrains.idea.maven.server.embedder.CustomMaven3ArtifactResolver.resolveTransitively(CustomMaven3ArtifactResolver.java:307) at org.jetbrains.idea.maven.server.embedder.CustomMaven3ArtifactResolver.resolveTransitively(CustomMaven3ArtifactResolver.java:286) at org.jetbrains.idea.maven.server.embedder.CustomMaven3ArtifactResolver.resolveTransitively(CustomMaven3ArtifactResolver.java:264) at org.jetbrains.idea.maven.server.embedder.CustomMaven3ArtifactResolver.resolveTransitively(CustomMaven3ArtifactResolver.java:257) at org.jetbrains.idea.maven.server.Maven30ServerEmbedderImpl.resolveTransitively(Maven30ServerEmbedderImpl.java:944) 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 sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:323) at sun.rmi.transport.Transport$1.run(Transport.java:200) at sun.rmi.transport.Transport$1.run(Transport.java:197) at java.security.AccessController.doPrivileged(Native Method) at sun.rmi.transport.Transport.serviceCall(Transport.java:196) at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:568) at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:826) at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$255(TCPTransport.java:683)
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