Bug 11109 F1 no longer works in Packages view
new context ID?
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/IJavaHelpContextIds.java
public static final String FILTER_STATIC_ACTION= PREFIX + "filter_static_action"; 
	public static final String SHOW_INHERITED_ACTION= PREFIX + "show_inherited_action"; 
	public static final String SHOW_SUPERTYPES= PREFIX + "show_supertypes_action"; 
	public static final String SHOW_SUBTYPES= PREFIX + "show_subtypes_action"; 
	public static final String SHOW_HIERARCHY= PREFIX + "show_hierarchy_action"; 
	public static final String ENABLE_METHODFILTER_ACTION= PREFIX + "enable_methodfilter_action"; 
	public static final String ADD_IMPORT_ON_SELECTION_ACTION= PREFIX + "add_imports_on_selection_action_context"; 
	public static final String ORGANIZE_IMPORTS_ACTION= PREFIX + "organize_imports_action_context"; 
	public static final String RUN_TO_LINE_ACTION= PREFIX + "run_to_line_action_context"; 
	public static final String TOGGLE_PRESENTATION_ACTION= PREFIX + "toggle_presentation_action_context"; 
	public static final String TOGGLE_TEXTHOVER_ACTION= PREFIX + "toggle_texthover_action_context"; 
	
	public static final String MAINTYPE_SELECTION_DIALOG= PREFIX + "maintype_selection_dialog_context"; 
	public static final String OPEN_TYPE_DIALOG= PREFIX + "open_type_dialog_context"; 
	public static final String EDIT_JRE_DIALOG= PREFIX + "edit_jre_dialog_context"; 
	public static final String SOURCE_ATTACHMENT_DIALOG= PREFIX + "source_attachment_dialog_context"; 
	public static final String VARIABLE_SELECTION_DIALOG= PREFIX + "variable_selection_dialog_context"; 
	public static final String VARIABLE_CREATION_DIALOG= PREFIX + "variable_creation_dialog_context"; 
	
	public static final String JAVA_SEARCH_PAGE= PREFIX + "java_search_page_context"; 
	
	public static final String COMPILATION_UNIT_EDITOR= PREFIX + "compilation_unit_editor_context"; 
	public static final String CLASS_FILE_EDITOR= PREFIX + "class_file_editor_context"; 
	
	
	public static final String PACKAGE_VIEW= PREFIX + "package_view_context"; 
	public static final String TYPE_HIERARCHY_VIEW= PREFIX + "type_hierarchy_view_context"; 
	public static final String PROJECTS_VIEW= PREFIX + "projects_view_context"; 
	public static final String PACKAGES_VIEW= PREFIX + "packages_view_context"; 
	public static final String TYPES_VIEW= PREFIX + "types_view_context";