如何修复启动eclipse时出现的错误日志？

Question

几天前，我将Eclipse设置为首次使用JavaFX。 Eclipse已经在我的计算机上安装了几个月，并且在我的计算机上工作没有任何问题。 今天我尝试启动Eclipse而无法启动。 日志文件中的第一个例外如下。 完整日志文件： https ： //pastebin.com/NKLgdfhG

有任何想法吗？

!ENTRY org.eclipse.jdt.ui 4 0 2018-09-11 19:48:16.228
!MESSAGE Error retrieving proposal text.
Display string:
No Proposals
Pattern:
out.println("
!STACK 0
java.lang.StringIndexOutOfBoundsException: String index out of range: 13
    at java.lang.String.substring(Unknown Source)
    at org.eclipse.jdt.internal.ui.text.java.AbstractJavaCompletionProposal.getPatternMatchRule(AbstractJavaCompletionProposal.java:919)
    at org.eclipse.jdt.internal.ui.text.java.AbstractJavaCompletionProposal.getStyledDisplayString(AbstractJavaCompletionProposal.java:1256)
    at org.eclipse.jface.text.contentassist.CompletionProposalPopup.handleSetData(CompletionProposalPopup.java:861)
    at org.eclipse.jface.text.contentassist.CompletionProposalPopup.access$8(CompletionProposalPopup.java:844)
    at org.eclipse.jface.text.contentassist.CompletionProposalPopup$3.handleEvent(CompletionProposalPopup.java:597)
    at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:86)
    at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4428)
    at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1079)
    at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1103)
    at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1088)
    at org.eclipse.swt.widgets.Table.checkData(Table.java:1189)
    at org.eclipse.swt.widgets.Table.wmNotifyChild(Table.java:6981)
    at org.eclipse.swt.widgets.Control.wmNotify(Control.java:5869)
    at org.eclipse.swt.widgets.Composite.wmNotify(Composite.java:2025)
    at org.eclipse.swt.widgets.Control.WM_NOTIFY(Control.java:5423)
    at org.eclipse.swt.widgets.Control.windowProc(Control.java:4899)
    at org.eclipse.swt.widgets.Canvas.windowProc(Canvas.java:359)
    at org.eclipse.swt.widgets.Decorations.windowProc(Decorations.java:1657)
    at org.eclipse.swt.widgets.Shell.windowProc(Shell.java:2199)
    at org.eclipse.swt.widgets.Display.windowProc(Display.java:5191)
    at org.eclipse.swt.internal.win32.OS.CallWindowProcW(Native Method)
    at org.eclipse.swt.internal.win32.OS.CallWindowProc(OS.java:2454)
    at org.eclipse.swt.widgets.Table.callWindowProc(Table.java:587)
    at org.eclipse.swt.widgets.Table.callWindowProc(Table.java:453)
    at org.eclipse.swt.widgets.Control.windowProc(Control.java:4941)
    at org.eclipse.swt.widgets.Table.windowProc(Table.java:6118)
    at org.eclipse.swt.widgets.Display.windowProc(Display.java:5191)
    at org.eclipse.swt.internal.win32.OS.SendMessageW(Native Method)
    at org.eclipse.swt.internal.win32.OS.SendMessage(OS.java:3333)
    at org.eclipse.swt.widgets.Table.select(Table.java:3519)
    at org.eclipse.swt.widgets.Table.setSelection(Table.java:5256)
    at org.eclipse.jface.text.contentassist.CompletionProposalPopup.selectProposal(CompletionProposalPopup.java:1407)
    at org.eclipse.jface.text.contentassist.CompletionProposalPopup.setProposals(CompletionProposalPopup.java:1179)
    at org.eclipse.jface.text.contentassist.CompletionProposalPopup$1.run(CompletionProposalPopup.java:366)
    at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:37)
    at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:182)
    at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4213)
    at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3820)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1150)
    at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336)
    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1039)
    at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:153)
    at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:680)
    at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336)
    at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:594)
    at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:148)
    at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:151)
    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:388)
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:243)
    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:653)
    at org.eclipse.equinox.launcher.Main.basicRun(Main.java:590)
    at org.eclipse.equinox.launcher.Main.run(Main.java:1499)

Answer 1

提到的日志条目发生在2018年9月。最后的条目插入日志的末尾，而不是在开头。

可能在您的系统上从Java 8升级到11 ，这是在2019年4月8日到13日之间完成的，这导致了问题（Java 11不再包含JavaFX）：

!SESSION 2019-04-08 20:31:32.915 -----------------------------------------------
eclipse.buildId=4.7.1.M20171009-0410
java.version=1.8.0_161

[...]

!SESSION 2019-04-13 00:34:34.112 -----------------------------------------------
eclipse.buildId=4.7.1.M20171009-0410
java.version=11.0.2

使用Java 8运行Eclipse应该可以解决您的问题。 如果要使用Java 11运行Eclipse，则必须首先升级Eclipse （后面是四个版本）。