/**
     * Execute the command line in a specific directory.
     *
     * @param buildContext The BuildContext for the current build
     * @param commandExecuteStreamHandler Stream Handler for the output of the execute command
     * @param extraEnvironmentVariables environment variable additional to those already in the env (e.g provided by the user via UI)
     * @param javaHome The java home value for this command
     * @param capabilitySet Capability set
     * @return -1 if the command failed
     * @throws CommandException Failure
     */
    public int executeCommand(final @NotNull BuildContext buildContext, final @NotNull CommandExecuteStreamHandler commandExecuteStreamHandler, String extraEnvironmentVariables, String javaHome, ReadOnlyCapabilitySet capabilitySet) throws CommandException
    {
        final BuildLogger buildLogger = buildLoggerManager.getBuildLogger(buildContext.getBuildResultKey());

        Commandline commandline = getSubstitutedCommandLine(buildContext, buildLogger, capabilitySet);

        extraEnvironmentVariables = substitutionBean.substituteBambooVariables(extraEnvironmentVariables, buildContext, buildLogger);

        Execute execute = new Execute(commandExecuteStreamHandler);
        execute.setWorkingDirectory(getWorkingDirectory());
        execute.setCommandline(commandline.getCommandline());

        String[] defaultEnvironmentVars = getEnvironmentSetting(extraEnvironmentVariables, javaHome);

        String[] customEnvironmentVars = getCustomEnvironmentVars(capabilitySet);
        if (customEnvironmentVars != null && customEnvironmentVars.length > 0)
        {
            defaultEnvironmentVars = (String[]) ArrayUtils.addAll(defaultEnvironmentVars, customEnvironmentVars);
        }

        execute.setEnvironment(defaultEnvironmentVars);

        checkHomeVariable(execute);

        if (ArrayUtils.contains(defaultEnvironmentVars, "BAMBOO_DEBUG_BUILD=true"))
        {
            debugBuildEnvironment(buildContext, buildLogger, execute);
        }

        try
        {
            return execute.execute();
        }
        catch (Exception e)
        {
            log.warn("Failed to execute command", e);
            throw new CommandException(e.getMessage(), e);
        }
    }