An internal error occurred during: "Identify jrt-fs.jar". --------------------------------------------------------- Key: JBIDE-26847 URL: https://issues.redhat.com/browse/JBIDE-26847 Project: Tools (JBoss Tools) Issue Type: Bug Components: maven Affects Versions: 4.11.0.Final, 4.16.x, 4.12.0.Final Reporter: Martijn Dashorst Assignee: Jeff MAURY Priority: Major Fix For: 4.16.0.Final I've installed JBoss Maven Integration 1.9.3.v20190827-1345 org.jboss.tools.maven.feature.feature.group Red Hat And when I open anything from the Java class library I get a popup with the message: *An internal error occurred during: "Identify jrt-fs.jar".* I don't have the full class library of the java runtime committed to my memory, so I have to look at the source quite often and this popup is getting literally in the way. {code:java} java.lang.NoClassDefFoundError: javax/xml/bind/JAXBContext at org.jboss.tools.maven.core.internal.identification.NexusRepositoryIdentifier.searchArtifactFromRemoteNexusRepository(NexusRepositoryIdentifier.java:96) at org.jboss.tools.maven.core.internal.identification.NexusRepositoryIdentifier.getArtifactFromRemoteNexusRepository(NexusRepositoryIdentifier.java:78) at org.jboss.tools.maven.core.internal.identification.NexusRepositoryIdentifier.identify(NexusRepositoryIdentifier.java:50) at org.jboss.tools.maven.core.internal.identification.FileIdentificationManager.identify(FileIdentificationManager.java:91) at org.jboss.tools.maven.sourcelookup.ui.actions.AttachSourcesActionDelegate$1.run(AttachSourcesActionDelegate.java:114) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: java.lang.ClassNotFoundException: javax.xml.bind.JAXBContext cannot be found by org.jboss.tools.maven.core_1.9.3.v20190827-1345 at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:514) at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:425) at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:417) at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:155) at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521) ... 6 more {code} It was reported in https://issues.jboss.org/browse/JBIDE-26571, apparently not fixed in https://issues.jboss.org/browse/JBIDE-26500 as the latest SNAPSHOT plugins still exhibit this error (in 2019.9) This is the set of JBoss Tools Maven plugins I have installed: JBoss Maven Integration 1.9.3.v20190827-1345 org.jboss.tools.maven.feature.feature.group Red Hat m2e - Maven Integration for Eclipse (includes Incubating components) 1.13.0.20190716-1624 org.eclipse.m2e.feature.feature.group Eclipse.org - m2e m2e-wtp - Maven Integration for WTP 1.4.2.20190530-0057 org.eclipse.m2e.wtp.feature.feature.group Eclipse.org - m2e-wtp Maven SCM Handler for EGit 0.15.1.201806191431 org.sonatype.m2e.egit.feature.feature.group Sonatype, Inc. JBoss Tools Maven Packaging Configurator 1.9.3.v20190827-1345 org.jboss.tools.maven.jbosspackaging.feature.feature.group Red Hat JBoss Tools Maven Source Lookup 1.9.3.v20190827-1345 org.jboss.tools.maven.sourcelookup.feature.feature.group Red Hat