clientFactoryList.remove(0);
        }
    }

    /**
     * Registers a client component with a regular expression.
     * The component will be loaded into all registered CrawlerClientFactories.
     * @param regex The regular expression to match URLs.
     * @param componentName The name of the component to register.
     */
    public synchronized void register(final String regex, final String componentName) {

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE components PUBLIC "-//DBFLUTE//DTD LastaDi 1.0//EN"
    "http://dbflute.org/meta/lastadi10.dtd">
<components namespace="fessCrawler">
    <component name="crawler" class="org.codelibs.fess.crawler.Crawler" instance="prototype"/>
    <component name="httpClient" class="org.codelibs.fess.crawler.client.http.HcHttpClient" instance="singleton"/>

Once the ClassRealm has been populated and all Plexus components have been discovered a lookup can be performed to retrieve the primary plugin component. Currently the component would need to be looked up and then the BasicComponentConfigurator would need to configure the component with a given Plexus configuration. We will discuss later how we would retrieve the Plexus configuration required for a given plugin.

import org.codehaus.plexus.components.interactivity.InputHandler;
import org.codehaus.plexus.components.interactivity.OutputHandler;
import org.codehaus.plexus.components.interactivity.Prompter;
import org.codehaus.plexus.components.interactivity.PrompterException;
import org.eclipse.sisu.Priority;

/**
 * This class is injected into any legacy component that would want to use legacy "Plexus Interactivity API".

	if err != nil {
		t.Fatal(err)
	}

	err = fs.AppendFile(context.Background(), "voldir", "/file", []byte("hello"))
	if err != nil {
		t.Fatal(err)
	}

	// Try to create a file that includes a file in its path components.
	// In *nix, this returns syscall.ENOTDIR while in windows we receive the following error.
	err = fs.AppendFile(context.Background(), "voldir", "/file/obj1", []byte("hello"))
	if err != errFileAccessDenied {

                    for (String component : apiName.split("\\.")) {
                        if (languagesByKeyword.containsKey(component)) {
                            final Set<String> errorsForFile = errors.computeIfAbsent(file, _file -> new HashSet<>());
                            errorsForFile.add(

 * the Maven dependency injection system. The main component is the {@link org.apache.maven.di.tool.DiIndexProcessor},
 * which processes classes annotated with {@link org.apache.maven.api.di.Named} and creates an index file
 * that allows for efficient discovery of injectable components at runtime.
 * <p>

 * <p>
 * Unlike {@link org.apache.maven.execution.MojoExecutionListener}, this extension point does not
 * trigger instantiation of the component, hence "weak" class name prefix. Only applies to mojo execution
 * scoped components.
 * </p>
 * <strong>Note:</strong> This interface is part of work in progress and can be changed or removed without notice.
 *
 * @see org.apache.maven.execution.MojoExecutionListener

        assertEquals(exception1.getClass(), exception2.getClass());
    }

    @Test
    public void test_componentNameWithSpecialCharacters() {
        // Test component name with special characters
        String componentName = "my-component_v2.0@service";
        ContainerNotAvailableException exception = new ContainerNotAvailableException(componentName, new RuntimeException());

~~ TODO document META-INF/maven/slf4j-configuration.properties

* Getting Logger Instance

 Starting with Maven 3.1.0, SLF4J Logger can be used directly. This technique can be used safely in Maven core
 components or in plugins/component not requiring compatibility with previous Maven versions.

+-----+
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class MyClass
{