No valid JDK found ------------------ Key: JBDS-4181 URL: https://issues.jboss.org/browse/JBDS-4181 Project: Red Hat JBoss Developer Studio (devstudio) Issue Type: Bug Components: common Affects Versions: 10.2.0.GA Environment: Fedora 24, openjdk version "1.8.0_102" OpenJDK Runtime Environment (build 1.8.0_102-b14) OpenJDK 64-Bit Server VM (build 25.102-b14, mixed mode) Reporter: Marián Labuda Assignee: Rob Stryker Fix For: 10.x When I start latest DevStudio 10.2.0.GA build ID GA-v20161116-0039-B6472, I get following error in error log {code} java.lang.Exception: No valid JDK found in your eclipse workspace for JBoss Tools Launching Support. Please add one at Window -> Preferences -> Installed JREs. java.lang.Exception: No valid JDK found in your eclipse workspace for JBoss Tools Launching Support. Please add one at Window -> Preferences -> Installed JREs. at org.jboss.tools.common.jdt.debug.tools.internal.Tools.findFirstValidVMInstall(Tools.java:275) at org.jboss.tools.common.jdt.debug.tools.internal.Tools.findSecondaryVMInstall(Tools.java:432) at org.jboss.tools.common.jdt.debug.tools.internal.Tools.findHomeDirectoryToAddToClasspath(Tools.java:417) at org.jboss.tools.common.jdt.debug.tools.internal.Tools.getToolsJar(Tools.java:146) at org.jboss.tools.common.jdt.debug.tools.internal.Tools.getToolsLoader(Tools.java:121) at org.jboss.tools.common.jdt.debug.tools.internal.Tools.reset(Tools.java:114) at org.jboss.tools.common.jdt.debug.tools.internal.Tools.<init>(Tools.java:82) at org.jboss.tools.common.jdt.debug.tools.internal.Tools.getInstance(Tools.java:73) at org.jboss.tools.common.jdt.debug.tools.ToolsCore.getActiveProcessIds(ToolsCore.java:179) at org.jboss.tools.jmx.jvmmonitor.internal.tools.JvmAttachHandler.updatesActiveJvms(JvmAttachHandler.java:100) at org.jboss.tools.jmx.jvmmonitor.internal.tools.JvmAttachHandler$1.run(JvmAttachHandler.java:78) at java.util.TimerThread.mainLoop(Timer.java:555) at java.util.TimerThread.run(Timer.java:505) {code}