updateUseJRE();
	private void initSelections() {		fStructuredSelection= asStructuredSelection();		fInitialData= tryStructuredSelection(fStructuredSelection);		if (fInitialData == null)			fInitialData= trySimpleTextSelection(getContainer().getSelection());		if (fInitialData == null)			fInitialData= getDefaultInitValues();		fJavaElement= fInitialData.getJavaElement();		fCaseSensitive.setSelection(fInitialData.isCaseSensitive());		fCaseSensitive.setEnabled(fInitialData.getJavaElement() == null);		fSearchFor[fInitialData.getSearchFor()].setSelection(true);		setLimitTo(fInitialData.getSearchFor());		fLimitTo[fInitialData.getLimitTo()].setSelection(true);				fPattern.setText(fInitialData.getPattern());	}