我在测试Eclipse 4 RCP应用程序的退出处理程序时面临以下异常。
!ENTRY org.eclipse.e4.ui.workbench 2 0 2014-06-10 14:09:22.607
!MESSAGE Could not run processor
!STACK 0
org.eclipse.e4.core.di.InjectionException: java.lang.NullPointerException
at org.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:63)
at org.eclipse.e4.core.internal.di.InjectorImpl.invokeUsingClass(InjectorImpl.java:243)
at org.eclipse.e4.core.internal.di.InjectorImpl.invoke(InjectorImpl.java:220)
at org.eclipse.e4.core.contexts.ContextInjectionFactory.invoke(ContextInjectionFactory.java:107)
at org.eclipse.e4.ui.internal.workbench.ModelAssembler.runProcessor(ModelAssembler.java:231)
at org.eclipse.e4.ui.internal.workbench.ModelAssembler.processModel(ModelAssembler.java:88)
at org.eclipse.e4.ui.internal.workbench.ResourceHandler.loadMostRecentModel(ResourceHandler.java:220)
at org.eclipse.e4.ui.internal.workbench.swt.E4Application.loadApplicationModel(E4Application.java:395)
at org.eclipse.e4.ui.internal.workbench.swt.E4Application.createE4Workbench(E4Application.java:238)
at org.eclipse.e4.ui.internal.workbench.swt.E4Application.start(E4Application.java:144)
at org.eclipse.swtbot.eclipse.core.UITestApplication.start(UITestApplication.java:54)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:354)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:181)
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:636)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:591)
at org.eclipse.equinox.launcher.Main.run(Main.java:1450)
at org.eclipse.equinox.launcher.Main.main(Main.java:1426)
Caused by: java.lang.NullPointerException
at org.eclipse.e4.tools.emf.liveeditor.ModelProcessor.process(ModelProcessor.java:55)
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.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:56)
... 23 more
我的测试用例如下所示
@RunWith(SWTBotJunit4ClassRunner.class)
public class ExitHandlerTest {
private static SWTBot bot;
@BeforeClass
public static void beforeClass() throws Exception {
bot = new SWTBot();
}
@Test
public void testExitHandler() {
SWTBotMenu fileMenu = bot.menu("File");
Assert.assertNotNull(fileMenu);
SWTBotMenu exitMenu = fileMenu.menu("Exit");
Assert.assertNotNull(exitMenu);
exitMenu.click();
}
@AfterClass
public static void sleep() {
}
}
我现有的处理程序的代码是
public class ExitHandler {
@Execute
public void execute(IWorkbench workbench, EPartService partService, ISaveHandler saveHandler) {
workbench.close();
}
}
虽然测试运行正常，但我不确定为什么会出现此异常。