java.lang.Exception: No runnable methods at org.junit.runners.BlockJUnit4ClassRunner


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Solution
use @Test on JUnit methods

java.lang.Exception: No runnable methods
at org.junit.runners.BlockJUnit4ClassRunner.validateInstanceMethods(BlockJUnit4ClassRunner.java:171)
at org.junit.runners.BlockJUnit4ClassRunner.collectInitializationErrors(BlockJUnit4ClassRunner.java:115)
at org.junit.runners.ParentRunner.validate(ParentRunner.java:269)
at org.junit.runners.ParentRunner.(ParentRunner.java:66)
at org.junit.runners.BlockJUnit4ClassRunner.(BlockJUnit4ClassRunner.java:59)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.(SpringJUnit4ClassRunner.java:104)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
at org.junit.internal.builders.AnnotatedBuilder.buildRunner(AnnotatedBuilder.java:31)
at org.junit.internal.builders.AnnotatedBuilder.runnerForClass(AnnotatedBuilder.java:24)
at org.junit.runners.model.RunnerBuilder.safeRunnerForClass(RunnerBuilder.java:57)
at org.junit.internal.builders.AllDefaultPossibilitiesBuilder.runnerForClass(AllDefaultPossibilitiesBuilder.java:29)
at org.junit.runners.model.RunnerBuilder.safeRunnerForClass(RunnerBuilder.java:57)
at org.junit.internal.requests.ClassRequest.getRunner(ClassRequest.java:24)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestLoader.createUnfilteredTest(JUnit4TestLoader.java:84)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestLoader.createTest(JUnit4TestLoader.java:70)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestLoader.loadTests(JUnit4TestLoader.java:43)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:444)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)

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org.jboss.tools.vpe.xulrunner.XulRunnerBundleNotFoundException: Bundle org.mozilla.xulrunner.win32.win32.x86_64 is not found.


Visual Page Editor has experimental support for Windows 64-bit.
Follow the link below to get details on how to install. Until then you can click on the Source tab to hide this error/info message.

org.jboss.tools.vpe.xulrunner.XulRunnerBundleNotFoundException: Bundle org.mozilla.xulrunner.win32.win32.x86_64 is not found.
at org.jboss.tools.vpe.xulrunner.browser.XulRunnerBrowser.getXulRunnerPath(XulRunnerBrowser.java:237)
at org.jboss.tools.vpe.xulrunner.browser.XulRunnerBrowser.<init>(XulRunnerBrowser.java:121)
at org.jboss.tools.vpe.xulrunner.editor.XulRunnerEditor.<init>(XulRunnerEditor.java:128)
at org.jboss.tools.vpe.editor.mozilla.XulRunnerPreview.<init>(XulRunnerPreview.java:22)
at org.jboss.tools.vpe.editor.mozilla.MozillaPreview.createPartControl(MozillaPreview.java:63)
at org.jboss.tools.vpe.editor.VpeEditorPart.createPreviewBrowser(VpeEditorPart.java:849)
at org.jboss.tools.jst.web.ui.internal.editor.jspeditor.JSPMultiPageEditor.pageChange(JSPMultiPageEditor.java:317)
at org.eclipse.ui.part.MultiPageEditorPart$2.widgetSelected(MultiPageEditorPart.java:294)
at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:248)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4353)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1061)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1085)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1070)
at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:782)
at org.eclipse.swt.custom.CTabFolder.setSelection(CTabFolder.java:3110)
at org.eclipse.swt.custom.CTabFolder.onMouse(CTabFolder.java:1794)
at org.eclipse.swt.custom.CTabFolder$1.handleEvent(CTabFolder.java:283)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4353)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1061)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4172)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3761)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:1151)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1032)
at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:148)
at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:636)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:579)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:135)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:380)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:235)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:648)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:603)
at org.eclipse.equinox.launcher.Main.run(Main.java:1465)
at org.eclipse.equinox.launcher.Main.main(Main.java:1438)

If you are using 64 bit windows with Eclipse Luna and JBOSS Tools then you need to download the xulrunner

components by following the steps below;

3

Eclipse > Help > Install New Software

step1

Add URL below to

http://download.jboss.org/jbosstools/updates/integration/luna/core/xulrunner/xulrunner-1.9.2_win64-2014-08-22_09-55-58-B4/

2

Select xulrunner support and install all and this will solve visual editor error on Eclipse Luna

Restart Eclipse

Visual editor will work

4

SCRIPT5007: Unable to get value of the property ‘display’: object is null or undefined flexigrid.js, line 692 character 5


If you get the exception mentioned below while using Flexigrid in your project

SCRIPT5007: Unable to get value of the property ‘display’: object is
null or undefined
flexigrid.js, line 692 character 5

Try to use Microsoft IE Developer tools first and my problem was related to removing the last coma in colModel

colModel :{display: ‘Row ID’, name : ‘id’, width : 100, sortable : false, align: ‘left’, hide: true},
{display: ”, name : ”, width : 100, sortable : true, align: ‘left’},
{display: ”, name : ”, width : 100, sortable : true, align: ‘left’},
{display: ”, name : ”, width : 150, sortable : true, align: ‘left’},
{display: ”, name : ”, width : 150, sortable : false, align: ‘left’},
{display: ”, name : ”, width : 150, sortable : true, align: ‘left’},
},

java.lang.NoClassDefFoundError: com/jhlabs/image/UnsharpFilter


For the exception mentioned below;

Exception in thread “main” java.lang.NoClassDefFoundError: com/jhlabs/image/UnsharpFilter
at com.mortennobel.imagescaling.AdvancedResizeOp.filter(AdvancedResizeOp.java:84)
at ImageService.scaleImage(ImageService.java:21)
at ImageService.main(ImageService.java:31)
Caused by: java.lang.ClassNotFoundException: com.jhlabs.image.UnsharpFilter
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
… 3 more

You need to download Filters.jar (Java Image Processing Filters) from the following link;

http://www.jhlabs.com/ip/filters/download.html

java.util.regex.PatternSyntaxException: Unmatched closing ‘)’ solution


If you encountered the following exception during run time;

java.util.regex.PatternSyntaxException: Unmatched closing ‘)’
Change your code such as the following for the parenthesis

String replaced = string.replaceFirst(“)“, “replaced”);  –> run time exception
String replaced = string.replaceFirst(“\\)“, “replaced”); –> correct usage

Failed to load JNI shared library “Program Files (x86)\Java\jdk1.6.0_20\jre\bin\client\jvm.dll”


If you get the following exception while trying to open Eclipse on Windows 7 version;

Failed to load JNI shared library “Program Files (x86)\Java\jdk1.6.0_20\jre\bin\client\jvm.dll”

You need to download the correct (Bit Architecture) version of Eclipse program.

Your jdk  architecture (32 or 64) of the Java and the Eclipse architecture should be the same.

If you are using the 32 Bit Architecture of Java, you have to Download 32 bit Eclipse version or if you are using 64 bit version of Java you have to download the 64 bit version of Eclispe program.