private void invoke()

in src/main/java/org/apache/maven/plugins/linkcheck/SiteInvoker.java [169:253]
74 lines of code
11 McCabe index (conditional complexity)

    private void invoke( File projectFile, File invokerLog, String mavenHome, List<String> goals,
                         List<String> activeProfiles, Properties properties )
    {
        Invoker invoker = new DefaultInvoker();
        invoker.setMavenHome( new File( mavenHome ) );
        File localRepoDir = new File( localRepository.getBasedir() );
        invoker.setLocalRepositoryDirectory( localRepoDir );

        InvocationRequest request = new DefaultInvocationRequest();
        request.setLocalRepositoryDirectory( localRepoDir );
        // request.setUserSettingsFile( settingsFile );
        request.setBatchMode( true );
        request.setShowErrors( getLog().isErrorEnabled() );
        request.setDebug( getLog().isDebugEnabled() );
        // request.setShowVersion( false );
        request.setBaseDirectory( projectFile.getParentFile() );
        request.setPomFile( projectFile );
        request.setGoals( goals );
        request.setProperties( properties );
        request.setProfiles( activeProfiles );

        File javaHome = getJavaHome();
        if ( javaHome != null )
        {
            request.setJavaHome( javaHome );
        }

        InvocationResult invocationResult;
        try
        {
            if ( getLog().isDebugEnabled() )
            {
                getLog().debug( "Invoking Maven for the goals: " + goals + " with properties=" + properties );
            }
            invocationResult = invoke( invoker, request, invokerLog, goals, properties, null );
        }
        catch ( MavenInvocationException e )
        {
            getLog().error( "Error when invoking Maven, consult the invoker log." );
            getLog().debug( e );
            return;
        }

        String invokerLogContent = null;
        
        try ( Reader reader = ReaderFactory.newReader( invokerLog, "UTF-8" ) )
        {
            invokerLogContent = IOUtil.toString( reader );
        }
        catch ( IOException e )
        {
            getLog().error( "IOException: " + e.getMessage() );
            getLog().debug( e );
        }

        if ( invokerLogContent != null && invokerLogContent.contains( "Error occurred during initialization of VM" ) )
        {
            getLog().info( "Error occurred during initialization of VM, try to use an empty MAVEN_OPTS." );

            if ( getLog().isDebugEnabled() )
            {
                getLog().debug( "Reinvoking Maven for the goals: " + goals + " with an empty MAVEN_OPTS" );
            }

            try
            {
                invocationResult = invoke( invoker, request, invokerLog, goals, properties, "" );
            }
            catch ( MavenInvocationException e )
            {
                getLog().error( "Error when reinvoking Maven, consult the invoker log." );
                getLog().debug( e );
                return;
            }
        }

        if ( invocationResult.getExitCode() != 0 )
        {
            if ( getLog().isErrorEnabled() )
            {
                getLog().error( "Error when invoking Maven, consult the invoker log file: "
                    + invokerLog.getAbsolutePath() );
            }
        }
    }