下载的一个源代码打不开，大家帮我看看这是怎么回事啊

Question

图片：
提示：
java.lang.IllegalArgumentException: URI has an authority component
at java.io.File.<init>(Unknown Source)
at com.genuitec.eclipse.j2eedt.uriresolver.SystemIDResolver.resolve(Unknown Source)
at org.eclipse.wst.common.uriresolver.internal.ExtensibleURIResolver.resolve(ExtensibleURIResolver.java:68)
at org.eclipse.wst.sse.core.internal.FileBufferModelManager$CommonURIResolver.getLocationByURI(FileBufferModelManager.java:197)
at org.eclipse.wst.sse.core.internal.FileBufferModelManager$CommonURIResolver.getLocationByURI(FileBufferModelManager.java:181)
at org.eclipse.wst.html.core.internal.htmlcss.URLModelProvider.resolveURI(URLModelProvider.java:401)
at org.eclipse.wst.html.core.internal.htmlcss.URLModelProvider.getCommonModelFor(URLModelProvider.java:86)
at org.eclipse.wst.html.core.internal.htmlcss.URLModelProvider.getModelForRead(URLModelProvider.java:259)
at org.eclipse.wst.html.core.internal.htmlcss.LinkElementAdapter.retrieveModel(LinkElementAdapter.java:239)
at org.eclipse.wst.html.core.internal.htmlcss.LinkElementAdapter.getModel(LinkElementAdapter.java:104)
at org.eclipse.wst.html.core.internal.htmlcss.AbstractStyleSheetAdapter.getSheet(AbstractStyleSheetAdapter.java:82)
at org.eclipse.wst.html.core.internal.htmlcss.HTMLDocumentAdapter.item(HTMLDocumentAdapter.java:241)
at org.eclipse.jst.pagedesigner.css2.CSSTempUtil.getStyleSheets(CSSTempUtil.java:62)
at org.eclipse.jst.pagedesigner.css2.CSSUtil.getCSSDeclaration(CSSUtil.java:138)
at org.eclipse.jst.pagedesigner.css2.style.AbstractStyle.calculateDeclaration(AbstractStyle.java:133)
at org.eclipse.jst.pagedesigner.css2.style.AbstractStyle.getDeclaration(AbstractStyle.java:143)
at org.eclipse.jst.pagedesigner.css2.style.AbstractStyle.calculateProperty(AbstractStyle.java:175)
at org.eclipse.jst.pagedesigner.css2.style.AbstractStyle.getStyleProperty(AbstractStyle.java:114)
at org.eclipse.jst.pagedesigner.css2.style.AbstractStyle.getDisplay(AbstractStyle.java:493)
at org.eclipse.jst.pagedesigner.css2.layout.CSSFigure.regetLayout(CSSFigure.java:136)
at org.eclipse.jst.pagedesigner.css2.layout.CSSFigure.invalidateCSS(CSSFigure.java:90)
at org.eclipse.jst.pagedesigner.css2.layout.CSSFigure.setCSSStyle(CSSFigure.java:74)
at org.eclipse.jst.pagedesigner.figurehandler.DefaultFigureHandler.updateFigure(DefaultFigureHandler.java:32)
at org.eclipse.jst.pagedesigner.figurehandler.FigureFactory.updateDeepFigure(FigureFactory.java:132)
at org.eclipse.jst.pagedesigner.parts.ElementEditPart.refresh(ElementEditPart.java:309)
at org.eclipse.jst.pagedesigner.parts.ElementEditPart.refresh(ElementEditPart.java:261)
at org.eclipse.gef.editparts.AbstractEditPart.addNotify(AbstractEditPart.java:235)
at org.eclipse.gef.editparts.AbstractGraphicalEditPart.addNotify(AbstractGraphicalEditPart.java:212)
at org.eclipse.jst.pagedesigner.parts.NodeEditPart.addNotify(NodeEditPart.java:101)
at org.eclipse.jst.pagedesigner.parts.ElementEditPart.addNotify(ElementEditPart.java:156)
at org.eclipse.gef.editparts.AbstractEditPart.addChild(AbstractEditPart.java:198)
at org.eclipse.gef.editparts.AbstractEditPart.refreshChildren(AbstractEditPart.java:727)
at org.eclipse.jst.pagedesigner.parts.DocumentEditPart.refreshChildren(DocumentEditPart.java:107)
at org.eclipse.gef.editparts.AbstractEditPart.refresh(AbstractEditPart.java:677)
at org.eclipse.gef.editparts.AbstractGraphicalEditPart.refresh(AbstractGraphicalEditPart.java:564)
at org.eclipse.jst.pagedesigner.parts.DocumentEditPart.refresh(DocumentEditPart.java:95)
at org.eclipse.gef.editparts.AbstractEditPart.addNotify(AbstractEditPart.java:235)
at org.eclipse.gef.editparts.AbstractGraphicalEditPart.addNotify(AbstractGraphicalEditPart.java:212)
at org.eclipse.jst.pagedesigner.parts.NodeEditPart.addNotify(NodeEditPart.java:101)
at org.eclipse.gef.editparts.AbstractEditPart.addChild(AbstractEditPart.java:198)
at org.eclipse.gef.editparts.SimpleRootEditPart.setContents(SimpleRootEditPart.java:101)
at org.eclipse.gef.ui.parts.AbstractEditPartViewer.setContents(AbstractEditPartViewer.java:601)
at org.eclipse.gef.ui.parts.AbstractEditPartViewer.setContents(AbstractEditPartViewer.java:610)
at org.eclipse.jst.pagedesigner.editors.SimpleGraphicalEditor.setModel(SimpleGraphicalEditor.java:400)
at com.genuitec.eclipse.jsf.designer.editors.JSFDesignerEditor.connectDesignPage(JSFDesignerEditor.java:300)
at com.genuitec.eclipse.jsf.designer.editors.JSFDesignerEditor.createPages(JSFDesignerEditor.java:380)
at org.eclipse.ui.part.MultiPageEditorPart.createPartControl(MultiPageEditorPart.java:283)
at org.eclipse.ui.internal.EditorReference.createPartHelper(EditorReference.java:661)
at org.eclipse.ui.internal.EditorReference.createPart(EditorReference.java:426)
at org.eclipse.ui.internal.WorkbenchPartReference.getPart(WorkbenchPartReference.java:592)
at org.eclipse.ui.internal.EditorReference.getEditor(EditorReference.java:263)
at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditorBatched(WorkbenchPage.java:2739)
at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditor(WorkbenchPage.java:2651)
at org.eclipse.ui.internal.WorkbenchPage.access$13(WorkbenchPage.java:2643)
at org.eclipse.ui.internal.WorkbenchPage$10.run(WorkbenchPage.java:2595)
at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:67)
at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2590)
at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2574)
at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2565)
at org.eclipse.ui.ide.IDE.openEditor(IDE.java:644)
at org.eclipse.ui.ide.IDE.openEditor(IDE.java:603)
at org.eclipse.jdt.internal.ui.javaeditor.EditorUtility.openInEditor(EditorUtility.java:286)
at org.eclipse.jdt.internal.ui.javaeditor.EditorUtility.openInEditor(EditorUtility.java:139)
at org.eclipse.jdt.ui.actions.OpenAction.run(OpenAction.java:194)
at org.eclipse.jdt.ui.actions.OpenAction.run(OpenAction.java:175)
at org.eclipse.jdt.ui.actions.SelectionDispatchAction.dispatchRun(SelectionDispatchAction.java:268)
at org.eclipse.jdt.ui.actions.SelectionDispatchAction.run(SelectionDispatchAction.java:244)
at org.eclipse.jdt.internal.ui.packageview.PackageExplorerActionGroup.handleOpen(PackageExplorerActionGroup.java:316)
at org.eclipse.jdt.internal.ui.packageview.PackageExplorerPart$5.open(PackageExplorerPart.java:613)
at org.eclipse.jface.viewers.StructuredViewer$2.run(StructuredViewer.java:820)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37)
at org.eclipse.core.runtime.Platform.run(Platform.java:857)
at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:46)
at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:199)
at org.eclipse.jface.viewers.StructuredViewer.fireOpen(StructuredViewer.java:818)
at org.eclipse.jface.viewers.StructuredViewer.handleOpen(StructuredViewer.java:1079)
at org.eclipse.jface.viewers.StructuredViewer$6.handleOpen(StructuredViewer.java:1183)
at org.eclipse.jface.util.OpenStrategy.fireOpenEvent(OpenStrategy.java:263)
at org.eclipse.jface.util.OpenStrategy.access$2(OpenStrategy.java:257)
at org.eclipse.jface.util.OpenStrategy$1.handleEvent(OpenStrategy.java:297)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:66)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:938)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3682)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3293)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2389)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2353)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2219)
at org.eclipse.ui.internal.Workbench$4.run(Workbench.java:466)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:289)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:461)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:106)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:169)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:106)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:76)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:363)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:176)
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:508)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:447)
at org.eclipse.equinox.launcher.Main.run(Main.java:1173)
at org.eclipse.equinox.launcher.Main.main(Main.java:1148)

Answer 1

是不是读取文件的问题，类似错误看到过如网上一个人遇到的： 该问题的出现是在读取文件的位置上，代码是通过生成URL再转换为URI，最后用File来读取，通过分析排除掉文件权限等问题，后来发现Java本身URI的在windows系统和linux系统下存在区别。具体正确的代码如下：
        URL url = new URL("file://" + realPath); //for Linux
        URL url = new URL("file:///" + realPath); //for Windows