Bug 59045 no more support to reuse editors
The old search provided the option Window>Preferences>Workbench>Search>"Reuse Editors to Show Matches". This option is no longer honored by the new search implementation. This is a loss of function and we have to revive this option.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/search/JavaSearchResultPage.java
protected TreeViewer createTreeViewer(Composite parent) {
		return new ProblemTreeViewer(parent, SWT.MULTI | SWT.H_SCROLL | SWT.V_SCROLL);
	}
	
	class MyProblemTable extends ProblemTableViewer {
		MyProblemTable(Composite parent, int flags) {
			super(parent, flags);
		}
	
		protected void internalRefresh(Object element, boolean updateLabels) {
			if (element == null || equals(element, getRoot())) {
				
				
				
				
				
				
				Object[] children = getSortedChildren(getRoot());
				getTable().removeAll();
			
				
				for (int i = 0; i < children.length; ++i) {
					updateItem(new TableItem(getTable(), SWT.NONE, i), children[i]);
				}
			}
			else {
				Widget w = findItem(element);
				if (w != null) {
					updateItem(w, element);