Bug 66094 IAE / Some copy operations don't pick up all of the collapsed regions
New feature to collapse regions of Java source - very nice. The way I copy between files is to position the cursor to the start of the file, use Ctrl+Shift+End to select all of the text between cursor and EOF, or sometimes Shift+Arrow keys to highlight a selected region. After this use Ctrl+C to copy into the clipboard. The collapsed regions are not included. Using Edit>Select All to select the file's contents does work, but holding down the shift key and using the keyboard arrows or Ctrl+End to traverse the selection cursor over collapsed regions doesn't pick up the collapsed bits.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/JavaEditor.java
ISourceViewer sourceViewer= getSourceViewer();
			if (sourceViewer != null)
				sourceViewer.removeTextInputListener(this);
			
			IDocumentProvider documentProvider= getDocumentProvider();
			if (documentProvider != null) {
				IDocument document= documentProvider.getDocument(getEditorInput());
				if (document != null)
					document.removeDocumentListener(this);
			}
				
			IPreferenceStore preferenceStore= getPreferenceStore();
			if (preferenceStore != null)
				preferenceStore.removePropertyChangeListener(this);
			
			if (sourceViewer == null)
				return;
			
			StyledText text= sourceViewer.getTextWidget();
			if (text == null || text.isDisposed())
				return;
				
			text.removeKeyListener(this);
			text.removeMouseListener(this);
			text.removeMouseMoveListener(this);
			text.removeFocusListener(this);
			text.removePaintListener(this);
			
			((ITextViewerExtension4)sourceViewer).removeTextPresentationListener(this);
		}