exception running on openjdk11 with eclipse 4.10

[richard-melvin]

Using:

Version: 2018-12 (4.10.0) Build id: 20181214-0600

with

-vm C:\Progra~1\OpenJDK\jdk-11.0.2\bin\javaw.exe

gets

ava.lang.NoClassDefFoundError: org/eclipse/jdt/internal/ui/javaeditor/IClassFileEditorInput
    at net.sourceforge.plantuml.jdt.ClassFileEditorDiagramTextProvider.getDiagramText(ClassFileEditorDiagramTextProvider.java:22)
    at net.sourceforge.plantuml.text.AbstractDiagramTextProvider.getDiagramText(AbstractDiagramTextProvider.java:41)
    at net.sourceforge.plantuml.text.AbstractDiagramTextProvider.getDiagramText(AbstractDiagramTextProvider.java:36)
    at net.sourceforge.plantuml.eclipse.views.AbstractDiagramSourceView.updateDiagramText(AbstractDiagramSourceView.java:305)
    at net.sourceforge.plantuml.eclipse.views.AbstractDiagramSourceView.updateDiagramText(AbstractDiagramSourceView.java:284)
    at net.sourceforge.plantuml.eclipse.views.AbstractDiagramSourceView$DiagramTextChangedListener.diagramChanged(AbstractDiagramSourceView.java:247)
    at net.sourceforge.plantuml.eclipse.views.AbstractDiagramSourceView$DiagramTextChangedListener.selectionChanged(AbstractDiagramSourceView.java:242)
    at org.eclipse.ui.internal.e4.compatibility.SelectionService.notifyListeners(SelectionService.java:242)
    at org.eclipse.ui.internal.e4.compatibility.SelectionService.handlePostSelectionChanged(SelectionService.java:116)
    at org.eclipse.ui.internal.e4.compatibility.SelectionService.lambda$2(SelectionService.java:71)

[hallvard]

Duplicate of #77