[Stable plugin api] Drop api suffix in package names (elastic#92905)

pgomulka · web-flow · commit 2cdaabe783fa · 2023-01-14T09:49:37.000+01:00
Refactoring that drops the api suffix from package name
This will have to be followed up by a plugins/examples fix in imports
Also set an artifact group name to `org.elasticsearch.plugin` in the plugin-api and plugin-analysis-api
diff --git a/build-tools-internal/src/main/java/org/elasticsearch/gradle/internal/InternalDistributionModuleCheckTaskProvider.java b/build-tools-internal/src/main/java/org/elasticsearch/gradle/internal/InternalDistributionModuleCheckTaskProvider.java
@@ -54,8 +54,8 @@ public class InternalDistributionModuleCheckTaskProvider {
         "org.elasticsearch.geo",
         "org.elasticsearch.logging",
         "org.elasticsearch.lz4",
-        "org.elasticsearch.plugin.analysis.api",
-        "org.elasticsearch.plugin.api",
+        "org.elasticsearch.plugin",
+        "org.elasticsearch.plugin.analysis",
         "org.elasticsearch.pluginclassloader",
         "org.elasticsearch.securesm",
         "org.elasticsearch.server",
diff --git a/build-tools/src/integTest/groovy/org/elasticsearch/gradle/plugin/StablePluginBuildPluginFuncTest.groovy b/build-tools/src/integTest/groovy/org/elasticsearch/gradle/plugin/StablePluginBuildPluginFuncTest.groovy
@@ -92,7 +92,7 @@ class StablePluginBuildPluginFuncTest extends AbstractGradleFuncTest {
         file("src/main/java/org/acme/A.java") << """
             package org.acme;
 
-            import org.elasticsearch.plugin.api.NamedComponent;
+            import org.elasticsearch.plugin.NamedComponent;
             import org.elasticsearch.plugin.scanner.test_classes.ExtensibleClass;
 
             @NamedComponent( "componentA")
diff --git a/build-tools/src/testFixtures/java/org/elasticsearch/gradle/internal/test/StableApiJarMocks.java b/build-tools/src/testFixtures/java/org/elasticsearch/gradle/internal/test/StableApiJarMocks.java
@@ -11,8 +11,8 @@
 import net.bytebuddy.ByteBuddy;
 import net.bytebuddy.dynamic.DynamicType;
 
-import org.elasticsearch.plugin.api.Extensible;
-import org.elasticsearch.plugin.api.NamedComponent;
+import org.elasticsearch.plugin.Extensible;
+import org.elasticsearch.plugin.NamedComponent;
 import org.elasticsearch.plugin.scanner.test_classes.ExtensibleClass;
 import org.elasticsearch.plugin.scanner.test_classes.ExtensibleInterface;
 
diff --git a/build-tools/src/testFixtures/java/org/elasticsearch/plugin/Extensible.java b/build-tools/src/testFixtures/java/org/elasticsearch/plugin/Extensible.java
@@ -5,7 +5,7 @@
  * in compliance with, at your election, the Elastic License 2.0 or the Server
  * Side Public License, v 1.
  */
-package org.elasticsearch.plugin.api;
+package org.elasticsearch.plugin;
 
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
diff --git a/build-tools/src/testFixtures/java/org/elasticsearch/plugin/NamedComponent.java b/build-tools/src/testFixtures/java/org/elasticsearch/plugin/NamedComponent.java
@@ -6,7 +6,7 @@
  * Side Public License, v 1.
  */
 
-package org.elasticsearch.plugin.api;
+package org.elasticsearch.plugin;
 
 import java.lang.annotation.ElementType;
 import java.lang.annotation.Retention;
diff --git a/build-tools/src/testFixtures/java/org/elasticsearch/plugin/scanner/test_classes/ExtensibleClass.java b/build-tools/src/testFixtures/java/org/elasticsearch/plugin/scanner/test_classes/ExtensibleClass.java
@@ -8,7 +8,7 @@
 
 package org.elasticsearch.plugin.scanner.test_classes;
 
-import org.elasticsearch.plugin.api.Extensible;
+import org.elasticsearch.plugin.Extensible;
 
 @Extensible
 public class ExtensibleClass {}
diff --git a/build-tools/src/testFixtures/java/org/elasticsearch/plugin/scanner/test_classes/ExtensibleInterface.java b/build-tools/src/testFixtures/java/org/elasticsearch/plugin/scanner/test_classes/ExtensibleInterface.java
@@ -8,7 +8,7 @@
 
 package org.elasticsearch.plugin.scanner.test_classes;
 
-import org.elasticsearch.plugin.api.Extensible;
+import org.elasticsearch.plugin.Extensible;
 
 @Extensible
 public interface ExtensibleInterface {}
diff --git a/build-tools/src/testFixtures/java/org/elasticsearch/plugin/scanner/test_classes/TestNamedComponent.java b/build-tools/src/testFixtures/java/org/elasticsearch/plugin/scanner/test_classes/TestNamedComponent.java
@@ -8,7 +8,9 @@
 
 package org.elasticsearch.plugin.scanner.test_classes;
 
-@org.elasticsearch.plugin.api.NamedComponent("test_named_component")
+import org.elasticsearch.plugin.NamedComponent;
+
+@NamedComponent("test_named_component")
 public class TestNamedComponent implements ExtensibleInterface {
 
 }
diff --git a/libs/plugin-analysis-api/build.gradle b/libs/plugin-analysis-api/build.gradle
@@ -9,6 +9,7 @@
 apply plugin: 'elasticsearch.publish'
 apply plugin: 'elasticsearch.build'
 
+group = "org.elasticsearch.plugin"
 
 tasks.named("loggerUsageCheck").configure {enabled = false }
 
diff --git a/libs/plugin-analysis-api/src/main/java/module-info.java b/libs/plugin-analysis-api/src/main/java/module-info.java
@@ -6,9 +6,9 @@
  * Side Public License, v 1.
  */
 
-module org.elasticsearch.plugin.analysis.api {
+module org.elasticsearch.plugin.analysis {
     requires org.apache.lucene.core;
-    requires org.elasticsearch.plugin.api;
+    requires org.elasticsearch.plugin;
 
-    exports org.elasticsearch.plugin.analysis.api;
+    exports org.elasticsearch.plugin.analysis;
 }
diff --git a/libs/plugin-analysis-api/src/main/java/org/elasticsearch/plugin/analysis/AnalysisMode.java b/libs/plugin-analysis-api/src/main/java/org/elasticsearch/plugin/analysis/AnalysisMode.java
@@ -6,7 +6,7 @@
  * Side Public License, v 1.
  */
 
-package org.elasticsearch.plugin.analysis.api;
+package org.elasticsearch.plugin.analysis;
 
 /**
  * Enum representing the mode in which token filters and analyzers are allowed to operate.
diff --git a/libs/plugin-analysis-api/src/main/java/org/elasticsearch/plugin/analysis/AnalyzerFactory.java b/libs/plugin-analysis-api/src/main/java/org/elasticsearch/plugin/analysis/AnalyzerFactory.java
@@ -6,11 +6,11 @@
  * Side Public License, v 1.
  */
 
-package org.elasticsearch.plugin.analysis.api;
+package org.elasticsearch.plugin.analysis;
 
 import org.apache.lucene.analysis.Analyzer;
-import org.elasticsearch.plugin.api.Extensible;
-import org.elasticsearch.plugin.api.Nameable;
+import org.elasticsearch.plugin.Extensible;
+import org.elasticsearch.plugin.Nameable;
 
 /**
  * An analysis component used to create Analyzers.
diff --git a/libs/plugin-analysis-api/src/main/java/org/elasticsearch/plugin/analysis/CharFilterFactory.java b/libs/plugin-analysis-api/src/main/java/org/elasticsearch/plugin/analysis/CharFilterFactory.java
@@ -6,10 +6,10 @@
  * Side Public License, v 1.
  */
 
-package org.elasticsearch.plugin.analysis.api;
+package org.elasticsearch.plugin.analysis;
 
-import org.elasticsearch.plugin.api.Extensible;
-import org.elasticsearch.plugin.api.Nameable;
+import org.elasticsearch.plugin.Extensible;
+import org.elasticsearch.plugin.Nameable;
 
 import java.io.Reader;
 
diff --git a/libs/plugin-analysis-api/src/main/java/org/elasticsearch/plugin/analysis/TokenFilterFactory.java b/libs/plugin-analysis-api/src/main/java/org/elasticsearch/plugin/analysis/TokenFilterFactory.java
@@ -6,11 +6,11 @@
  * Side Public License, v 1.
  */
 
-package org.elasticsearch.plugin.analysis.api;
+package org.elasticsearch.plugin.analysis;
 
 import org.apache.lucene.analysis.TokenStream;
-import org.elasticsearch.plugin.api.Extensible;
-import org.elasticsearch.plugin.api.Nameable;
+import org.elasticsearch.plugin.Extensible;
+import org.elasticsearch.plugin.Nameable;
 
 /**
  * An analysis component used to create token filters.
diff --git a/libs/plugin-analysis-api/src/main/java/org/elasticsearch/plugin/analysis/TokenizerFactory.java b/libs/plugin-analysis-api/src/main/java/org/elasticsearch/plugin/analysis/TokenizerFactory.java
@@ -6,11 +6,11 @@
  * Side Public License, v 1.
  */
 
-package org.elasticsearch.plugin.analysis.api;
+package org.elasticsearch.plugin.analysis;
 
 import org.apache.lucene.analysis.Tokenizer;
-import org.elasticsearch.plugin.api.Extensible;
-import org.elasticsearch.plugin.api.Nameable;
+import org.elasticsearch.plugin.Extensible;
+import org.elasticsearch.plugin.Nameable;
 
 /**
  * An analysis component used to create tokenizers.
diff --git a/libs/plugin-api/build.gradle b/libs/plugin-api/build.gradle
@@ -9,6 +9,7 @@
 apply plugin: 'elasticsearch.publish'
 apply plugin: 'elasticsearch.build'
 
+group = "org.elasticsearch.plugin"
 
 tasks.named("loggerUsageCheck").configure {enabled = false }
 
diff --git a/libs/plugin-api/src/main/java/module-info.java b/libs/plugin-api/src/main/java/module-info.java
@@ -6,7 +6,7 @@
  * Side Public License, v 1.
  */
 
-module org.elasticsearch.plugin.api {
-    exports org.elasticsearch.plugin.api;
-    exports org.elasticsearch.plugin.api.settings;
+module org.elasticsearch.plugin {
+    exports org.elasticsearch.plugin;
+    exports org.elasticsearch.plugin.settings;
 }
diff --git a/libs/plugin-api/src/main/java/org/elasticsearch/plugin/Extensible.java b/libs/plugin-api/src/main/java/org/elasticsearch/plugin/Extensible.java
@@ -6,7 +6,7 @@
  * Side Public License, v 1.
  */
 
-package org.elasticsearch.plugin.api;
+package org.elasticsearch.plugin;
 
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
diff --git a/libs/plugin-api/src/main/java/org/elasticsearch/plugin/Inject.java b/libs/plugin-api/src/main/java/org/elasticsearch/plugin/Inject.java
@@ -6,7 +6,7 @@
  * Side Public License, v 1.
  */
 
-package org.elasticsearch.plugin.api;
+package org.elasticsearch.plugin;
 
 import java.lang.annotation.ElementType;
 import java.lang.annotation.Retention;
diff --git a/libs/plugin-api/src/main/java/org/elasticsearch/plugin/Nameable.java b/libs/plugin-api/src/main/java/org/elasticsearch/plugin/Nameable.java
@@ -6,7 +6,7 @@
  * Side Public License, v 1.
  */
 
-package org.elasticsearch.plugin.api;
+package org.elasticsearch.plugin;
 
 /**
  * A named plugin component. Components with a name can be registered and fetched under a name given in
diff --git a/libs/plugin-api/src/main/java/org/elasticsearch/plugin/NamedComponent.java b/libs/plugin-api/src/main/java/org/elasticsearch/plugin/NamedComponent.java
@@ -6,7 +6,7 @@
  * Side Public License, v 1.
  */
 
-package org.elasticsearch.plugin.api;
+package org.elasticsearch.plugin;
 
 import java.lang.annotation.ElementType;
 import java.lang.annotation.Retention;
diff --git a/libs/plugin-api/src/main/java/org/elasticsearch/plugin/package-info.java b/libs/plugin-api/src/main/java/org/elasticsearch/plugin/package-info.java
@@ -12,14 +12,12 @@
  * <ul>
  *      <li> The root package is org.elasticsearch.plugin</li>
  *      <li> Specialised API jars have their name following the root package.
+ *           Interfaces and annotations used by plugin developers should be placed under it.
  *           i.e. org.elasticsearch.plugin.analysis
  *      </li>
- *      <li> Interfaces and annotations used by plugin developers are in `api` package
- *           i.e org.elasticsearch.plugin.analysis.api or org.elasticsearch.plugin.api
-*       </li>
- *      <li> packages which are not meant to be used by plugin developers should not be subpackages of api
+ *      <li> packages which are not meant to be used by plugin developers should be under internal package suffix
  *           i.e org.elasticsearch.plugin.analysis.internal
  *      </li>
  * </ul>
  */
-package org.elasticsearch.plugin.api;
+package org.elasticsearch.plugin;
diff --git a/libs/plugin-api/src/main/java/org/elasticsearch/plugin/settings/AnalysisSettings.java b/libs/plugin-api/src/main/java/org/elasticsearch/plugin/settings/AnalysisSettings.java
@@ -6,7 +6,7 @@
  * Side Public License, v 1.
  */
 
-package org.elasticsearch.plugin.api.settings;
+package org.elasticsearch.plugin.settings;
 
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
diff --git a/libs/plugin-api/src/main/java/org/elasticsearch/plugin/settings/BooleanSetting.java b/libs/plugin-api/src/main/java/org/elasticsearch/plugin/settings/BooleanSetting.java
@@ -6,7 +6,7 @@
  * Side Public License, v 1.
  */
 
-package org.elasticsearch.plugin.api.settings;
+package org.elasticsearch.plugin.settings;
 
 import java.lang.annotation.ElementType;
 import java.lang.annotation.Retention;
diff --git a/libs/plugin-api/src/main/java/org/elasticsearch/plugin/settings/IntSetting.java b/libs/plugin-api/src/main/java/org/elasticsearch/plugin/settings/IntSetting.java
@@ -6,7 +6,7 @@
  * Side Public License, v 1.
  */
 
-package org.elasticsearch.plugin.api.settings;
+package org.elasticsearch.plugin.settings;
 
 import java.lang.annotation.ElementType;
 import java.lang.annotation.Retention;
diff --git a/libs/plugin-api/src/main/java/org/elasticsearch/plugin/settings/ListSetting.java b/libs/plugin-api/src/main/java/org/elasticsearch/plugin/settings/ListSetting.java
@@ -6,7 +6,7 @@
  * Side Public License, v 1.
  */
 
-package org.elasticsearch.plugin.api.settings;
+package org.elasticsearch.plugin.settings;
 
 import java.lang.annotation.ElementType;
 import java.lang.annotation.Retention;
diff --git a/libs/plugin-api/src/main/java/org/elasticsearch/plugin/settings/LongSetting.java b/libs/plugin-api/src/main/java/org/elasticsearch/plugin/settings/LongSetting.java
@@ -6,7 +6,7 @@
  * Side Public License, v 1.
  */
 
-package org.elasticsearch.plugin.api.settings;
+package org.elasticsearch.plugin.settings;
 
 import java.lang.annotation.ElementType;
 import java.lang.annotation.Retention;
diff --git a/libs/plugin-api/src/main/java/org/elasticsearch/plugin/settings/StringSetting.java b/libs/plugin-api/src/main/java/org/elasticsearch/plugin/settings/StringSetting.java
@@ -6,7 +6,7 @@
  * Side Public License, v 1.
  */
 
-package org.elasticsearch.plugin.api.settings;
+package org.elasticsearch.plugin.settings;
 
 import java.lang.annotation.ElementType;
 import java.lang.annotation.Retention;
diff --git a/libs/plugin-scanner/src/main/java/module-info.java b/libs/plugin-scanner/src/main/java/module-info.java
@@ -9,7 +9,7 @@
 module org.elasticsearch.plugin.scanner {
     requires org.elasticsearch.base;
     requires org.objectweb.asm;
-    requires org.elasticsearch.plugin.api;
+    requires org.elasticsearch.plugin;
     requires org.elasticsearch.xcontent;
 
     exports org.elasticsearch.plugin.scanner;
diff --git a/libs/plugin-scanner/src/main/java/org/elasticsearch/plugin/scanner/NamedComponentScanner.java b/libs/plugin-scanner/src/main/java/org/elasticsearch/plugin/scanner/NamedComponentScanner.java
@@ -8,8 +8,8 @@
 
 package org.elasticsearch.plugin.scanner;
 
-import org.elasticsearch.plugin.api.Extensible;
-import org.elasticsearch.plugin.api.NamedComponent;
+import org.elasticsearch.plugin.Extensible;
+import org.elasticsearch.plugin.NamedComponent;
 import org.elasticsearch.xcontent.XContentBuilder;
 import org.elasticsearch.xcontent.XContentFactory;
 import org.objectweb.asm.AnnotationVisitor;
diff --git a/libs/plugin-scanner/src/test/java/org/elasticsearch/plugin/scanner/AnnotatedHierarchyVisitorTests.java b/libs/plugin-scanner/src/test/java/org/elasticsearch/plugin/scanner/AnnotatedHierarchyVisitorTests.java
@@ -8,8 +8,8 @@
 
 package org.elasticsearch.plugin.scanner;
 
-import org.elasticsearch.plugin.api.Extensible;
-import org.elasticsearch.plugin.api.NamedComponent;
+import org.elasticsearch.plugin.Extensible;
+import org.elasticsearch.plugin.NamedComponent;
 import org.elasticsearch.plugin.scanner.test_model.ExtensibleClass;
 import org.elasticsearch.plugin.scanner.test_model.ExtensibleInterface;
 import org.elasticsearch.plugin.scanner.test_model.ImplementingExtensible;
diff --git a/libs/plugin-scanner/src/test/java/org/elasticsearch/plugin/scanner/ClassScannerTests.java b/libs/plugin-scanner/src/test/java/org/elasticsearch/plugin/scanner/ClassScannerTests.java
@@ -8,7 +8,7 @@
 
 package org.elasticsearch.plugin.scanner;
 
-import org.elasticsearch.plugin.api.Extensible;
+import org.elasticsearch.plugin.Extensible;
 import org.elasticsearch.test.ESTestCase;
 import org.hamcrest.Matchers;
 import org.objectweb.asm.ClassReader;
diff --git a/libs/plugin-scanner/src/test/java/org/elasticsearch/plugin/scanner/NamedComponentScannerTests.java b/libs/plugin-scanner/src/test/java/org/elasticsearch/plugin/scanner/NamedComponentScannerTests.java
@@ -64,13 +64,13 @@ public void testNamedComponentsAreFoundWhenSingleJarProvided() throws IOExceptio
         Path jar = dirWithJar.resolve("plugin.jar");
         JarUtils.createJarWithEntries(jar, Map.of("p/A.class", InMemoryJavaCompiler.compile("p.A", """
             package p;
-            import org.elasticsearch.plugin.api.*;
+            import org.elasticsearch.plugin.*;
             import org.elasticsearch.plugin.scanner.test_model.*;
             @NamedComponent("a_component")
             public class A extends ExtensibleClass {}
             """), "p/B.class", InMemoryJavaCompiler.compile("p.B", """
             package p;
-            import org.elasticsearch.plugin.api.*;
+            import org.elasticsearch.plugin.*;
             import org.elasticsearch.plugin.scanner.test_model.*;
             @NamedComponent("b_component")
             public class B implements ExtensibleInterface{}
@@ -107,30 +107,30 @@ public void testNamedComponentsCanExtednCommonSuperClass() throws IOException {
             "p.CustomExtensibleInterface",
             """
                 package p;
-                import org.elasticsearch.plugin.api.*;
+                import org.elasticsearch.plugin.*;
                 import org.elasticsearch.plugin.scanner.test_model.*;
                 public interface CustomExtensibleInterface extends ExtensibleInterface {}
                 """,
             // note that this class implements a custom interface
             "p.CustomExtensibleClass",
             """
                 package p;
-                import org.elasticsearch.plugin.api.*;
+                import org.elasticsearch.plugin.*;
                 import org.elasticsearch.plugin.scanner.test_model.*;
                 public class CustomExtensibleClass implements CustomExtensibleInterface {}
                 """,
             "p.A",
             """
                 package p;
-                import org.elasticsearch.plugin.api.*;
+                import org.elasticsearch.plugin.*;
                 import org.elasticsearch.plugin.scanner.test_model.*;
                 @NamedComponent("a_component")
                 public class A extends CustomExtensibleClass {}
                 """,
             "p.B",
             """
                 package p;
-                import org.elasticsearch.plugin.api.*;
+                import org.elasticsearch.plugin.*;
                 import org.elasticsearch.plugin.scanner.test_model.*;
                 @NamedComponent("b_component")
                 public class B implements CustomExtensibleInterface{}
diff --git a/libs/plugin-scanner/src/test/java/org/elasticsearch/plugin/scanner/test_model/ExtensibleClass.java b/libs/plugin-scanner/src/test/java/org/elasticsearch/plugin/scanner/test_model/ExtensibleClass.java
@@ -8,7 +8,7 @@
 
 package org.elasticsearch.plugin.scanner.test_model;
 
-import org.elasticsearch.plugin.api.Extensible;
+import org.elasticsearch.plugin.Extensible;
 
 @Extensible
 public class ExtensibleClass {}
diff --git a/libs/plugin-scanner/src/test/java/org/elasticsearch/plugin/scanner/test_model/ExtensibleInterface.java b/libs/plugin-scanner/src/test/java/org/elasticsearch/plugin/scanner/test_model/ExtensibleInterface.java
diff --git a/libs/plugin-scanner/src/test/java/org/elasticsearch/plugin/scanner/test_model/TestNamedComponent.java b/libs/plugin-scanner/src/test/java/org/elasticsearch/plugin/scanner/test_model/TestNamedComponent.java
diff --git a/server/src/main/java/module-info.java b/server/src/main/java/module-info.java
diff --git a/server/src/main/java/org/elasticsearch/indices/analysis/wrappers/SettingsInvocationHandler.java b/server/src/main/java/org/elasticsearch/indices/analysis/wrappers/SettingsInvocationHandler.java
diff --git a/server/src/main/java/org/elasticsearch/indices/analysis/wrappers/StableApiWrappers.java b/server/src/main/java/org/elasticsearch/indices/analysis/wrappers/StableApiWrappers.java
diff --git a/server/src/main/java/org/elasticsearch/plugins/scanners/ExtensiblesRegistry.java b/server/src/main/java/org/elasticsearch/plugins/scanners/ExtensiblesRegistry.java
diff --git a/server/src/main/java/org/elasticsearch/plugins/scanners/StablePluginsRegistry.java b/server/src/main/java/org/elasticsearch/plugins/scanners/StablePluginsRegistry.java
diff --git a/server/src/main/resources/org/elasticsearch/plugins/scanners/extensibles.json b/server/src/main/resources/org/elasticsearch/plugins/scanners/extensibles.json
diff --git a/server/src/test/java/org/elasticsearch/indices/analysis/IncorrectSetupStablePluginsTests.java b/server/src/test/java/org/elasticsearch/indices/analysis/IncorrectSetupStablePluginsTests.java
diff --git a/server/src/test/java/org/elasticsearch/indices/analysis/StableAnalysisPluginsNoSettingsTests.java b/server/src/test/java/org/elasticsearch/indices/analysis/StableAnalysisPluginsNoSettingsTests.java
diff --git a/server/src/test/java/org/elasticsearch/indices/analysis/StableAnalysisPluginsWithSettingsTests.java b/server/src/test/java/org/elasticsearch/indices/analysis/StableAnalysisPluginsWithSettingsTests.java
diff --git a/server/src/test/java/org/elasticsearch/indices/analysis/wrappers/StableApiWrappersTests.java b/server/src/test/java/org/elasticsearch/indices/analysis/wrappers/StableApiWrappersTests.java
diff --git a/server/src/test/java/org/elasticsearch/plugins/PluginsServiceTests.java b/server/src/test/java/org/elasticsearch/plugins/PluginsServiceTests.java

Original file line number	Diff line number	Diff line change
`@@ -8,7 +8,9 @@`
`8`	`8`
`9`	`9`	`package org.elasticsearch.plugin.scanner.test_classes;`
`10`	`10`
`11`		`-@org.elasticsearch.plugin.api.NamedComponent("test_named_component")`
	`11`	`+import org.elasticsearch.plugin.NamedComponent;`
	`12`	`+`
	`13`	`+@NamedComponent("test_named_component")`
`12`	`14`	`public class TestNamedComponent implements ExtensibleInterface {`
`13`	`15`
`14`	`16`	`}`