Bug 39995 [navigation] Forward history cleared after going back in navigation history
build I20030710 - select a method call to a method in the same class - hit F3 to open the declaration - use the back buttons to go back to the call site - the forward history gets cleared shortly thereafter, making it more difficult to get back to the declaration Seems to only occur for navigations within the same file.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/JavaEditor.java
previous= next;
						else
							break;
					} while (order != CollationElementIterator.NULLORDER);
					
					position= position - buffer.length() + offset - 1;
					character= document.getChar(position);
					if (!Character.isUpperCase(character)) {
						setCaretPosition(position + 1);
						return;
					}
				}
			} catch (BadLocationException exception) {
				
			}
			super.run();
		}
		/**
		 * Sets the caret position to the sub-word boundary given with <code>position</code>.
		 * 
		 * @param position Position where the action should move the caret
		 */
		protected abstract void setCaretPosition(int position);
	}
	/**
	 * Text navigation action to navigate to the previous sub-word.
	 * 
	 * @since 3.0
	 */
	protected class NavigatePreviousSubWordAction extends PreviousSubWordAction {