bootstrap problem

import ooo.connector.BootstrapSocketConnector;

class Macro {
    private static final String ooExecPath = "C:/Program Files (x86)/LibreOffice 5/program/";

    public Object executeMacro(String strMacroName, Object[] aParams) throws BootstrapException {
        try {

            System.out.println("Connecting to OpenOffice");
            XComponentContext xContext = BootstrapSocketConnector.bootstrap(ooExecPath);
//          XComponentContext xContext = Bootstrap.bootstrap();
            System.out.println("Connected to a running instance of OpenOffice");
            System.out.println("Trying to execute macro...");

            com.sun.star.text.XTextDocument mxDoc = openWriter(xContext);

            XScriptProviderSupplier xScriptPS = (XScriptProviderSupplier) UnoRuntime
                    .queryInterface(XScriptProviderSupplier.class, mxDoc);
            XScriptProvider xScriptProvider = xScriptPS.getScriptProvider();
            XScript xScript = xScriptProvider.getScript("vnd.sun.star.script:" + strMacroName);

            short[][] aOutParamIndex = new short[1][1];
            Object[][] aOutParam = new Object[1][1];

            return xScript.invoke(aParams, aOutParamIndex, aOutParam);