GT-3498: Fix for unchecked type casts in table auto-lookup

Author: rev308

Ghidra/Framework/Docking/src/main/java/docking/widgets/table/GTableAutoLookup.java

@@ -55,18 +55,26 @@ public String getValueString(int row, int col) {
 		return obj == null ? null : obj.toString();
 	}
 
+	private boolean isSortableTableModel() {
+		return table.getModel() instanceof SortedTableModel;
+	}
+
 	@Override
 	public boolean isSorted(int column) {
-
-		if (table.getModel() instanceof SortedTableModel) {
-			SortedTableModel sortedModel = (SortedTableModel) table.getModel();
-			return column == sortedModel.getPrimarySortColumnIndex();
+		if (!isSortableTableModel()) {
+			return false;
 		}
-		return false;
+
+		SortedTableModel sortedModel = (SortedTableModel) table.getModel();
+		return column == sortedModel.getPrimarySortColumnIndex();
 	}
 
 	@Override
 	public boolean isSortedAscending() {
+		if (!isSortableTableModel()) {
+			return false;
+		}
+
 		SortedTableModel model = (SortedTableModel) table.getModel();
 		int primarySortColumnIndex = model.getPrimarySortColumnIndex();
 		TableSortState columnSortState = model.getTableSortState();