Snjezana Peco created JBIDE-12569: ------------------------------------- Summary: Runtime Detection preference page and RuntimeScanner are broken in trunk Key: JBIDE-12569 URL: https://issues.jboss.org/browse/JBIDE-12569 Project: Tools (JBoss Tools) Issue Type: Bug Components: runtime detection Affects Versions: 4.0.0.Alpha2 Reporter: Snjezana Peco Assignee: Snjezana Peco Fix For: 4.0.0.Alpha2 The issue is caused by fixing JBIDE-12448. When starting JBoss Tools the first time, you will get the following exception: !MESSAGE An internal error occurred during: "Searching runtimes...". !STACK 0 java.lang.NullPointerException at org.jboss.tools.runtime.ui.RuntimeScanner.runtimeExists(RuntimeScanner.java:100) at org.jboss.tools.runtime.ui.RuntimeScanner.access$0(RuntimeScanner.java:98) at org.jboss.tools.runtime.ui.RuntimeScanner$1.run(RuntimeScanner.java:50) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54) If you try to open the Runtime Detection preference page, you will get a dialog with the message "The currently displayed page contains invalid values" as well as the following exception in the error log: !ENTRY org.eclipse.jface 4 2 2012-09-08 23:04:09.526 !MESSAGE Problems occurred when invoking code from plug-in: "org.eclipse.jface". !STACK 0 java.lang.NullPointerException at org.jboss.tools.runtime.ui.preferences.RuntimePreferencePage.createRuntimePathsButtons(RuntimePreferencePage.java:424) at org.jboss.tools.runtime.ui.preferences.RuntimePreferencePage.createRuntimePathViewer(RuntimePreferencePage.java:256) at org.jboss.tools.runtime.ui.preferences.RuntimePreferencePage.createContents(RuntimePreferencePage.java:130) at org.eclipse.jface.preference.PreferencePage.createControl(PreferencePage.java:232) at org.eclipse.jface.preference.PreferenceDialog.createPageControl(PreferenceDialog.java:1502) at org.eclipse.jface.preference.PreferenceDialog$14.run(PreferenceDialog.java:1259) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42) -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira