Bug 127746 [build path] Build Path action "no actions available" should be disabled
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/wizards/buildpaths/newsourcepage/GenerateBuildPathActionGroup.java
BuildPathAction action= new BuildPathAction(site, context);
        switch(type) {
            case IClasspathInformationProvider.CREATE_LINK: {
                imageDescriptor= JavaPluginImages.DESC_ELCL_ADD_LINKED_SOURCE_TO_BUILDPATH;
                disabledImageDescriptor= JavaPluginImages.DESC_DLCL_ADD_LINKED_SOURCE_TO_BUILDPATH;
                text= NewWizardMessages.NewSourceContainerWorkbookPage_ToolBar_Link_label; 
                tooltip= NewWizardMessages.NewSourceContainerWorkbookPage_ToolBar_Link_tooltip; 
                operation= new LinkedSourceFolderOperation(null, action);
                break;
            }
            case IClasspathInformationProvider.ADD_SEL_SF_TO_BP: {
                imageDescriptor= JavaPluginImages.DESC_OBJS_PACKFRAG_ROOT;
                text= NewWizardMessages.NewSourceContainerWorkbookPage_ToolBar_AddSelSFToCP_label; 
                tooltip= NewWizardMessages.NewSourceContainerWorkbookPage_ToolBar_AddSelSFToCP_tooltip; 
                operation= new AddSelectedSourceFolderOperation(null, action);
                break;
            }
            case IClasspathInformationProvider.ADD_SEL_LIB_TO_BP: {
                imageDescriptor= JavaPluginImages.DESC_OBJS_EXTJAR;
                
                text= NewWizardMessages.NewSourceContainerWorkbookPage_ToolBar_AddSelLibToCP_label; 
                tooltip= NewWizardMessages.NewSourceContainerWorkbookPage_ToolBar_AddSelLibToCP_tooltip; 
                operation= new AddSelectedLibraryOperation(null, action);
                break;
            }
            case IClasspathInformationProvider.REMOVE_FROM_BP: {
                imageDescriptor= JavaPluginImages.DESC_ELCL_REMOVE_FROM_BP;
                disabledImageDescriptor= JavaPluginImages.DESC_DLCL_REMOVE_FROM_BP;
                text= NewWizardMessages.NewSourceContainerWorkbookPage_ToolBar_RemoveFromCP_label; 
                tooltip= NewWizardMessages.NewSourceContainerWorkbookPage_ToolBar_RemoveFromCP_tooltip;