[Eclipse] 이클립스 실행 에러

JDK 버전을 변경하고 이클립스 재실행을 했는데, 에러 창이 뜨면서 이클립스가 켜지지 않았다.

 

경고창 내용 : An error has occured. See the log file 경로~

 

해당 log 확인을 했다.

java.lang.NoClassDefFoundError: org/w3c/dom/stylesheets/StyleSheet
	at org.eclipse.e4.ui.css.swt.internal.theme.ThemeEngineManager.getCSSSWTEngine(ThemeEngineManager.java:41)
	at org.eclipse.e4.ui.css.swt.internal.theme.ThemeEngineManager.getEngineForDisplay(ThemeEngineManager.java:30)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.createThemeEngine(PartRenderingEngine.java:1428)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.initializeStyling(PartRenderingEngine.java:1281)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:1036)
	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 java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:564)
	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)
Caused by: java.lang.ClassNotFoundException: org.w3c.dom.stylesheets.StyleSheet cannot be found by org.eclipse.e4.ui.css.core_0.10.100.v20140424-2042
	at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:432)
	at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:345)
	at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:337)
	at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:160)
	at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:496)
	... 25 more

 

결론 : 바꾼 JDK(java 9)가 문제였다.

원래 사용하던 java(java 8)버전으로 환경설정을 다시 잡아주고 이클립스 실행 시키니 되었다....

 

사용 이클립스 : 루나

 

환경 변수 바꾼 후, 재부팅 없이 적용하기!

1. cmd 창 열기

2. taskkill /f /im explorer.exe 엔터

=> 이러면 작업표시줄이 없어짐

3. explorer.exe 엔터

==> 작업표시줄 다시 나옴.