plugins/properties/src/META-INF/plugin.xml

<idea-plugin>
  <id>com.intellij.properties</id>
  <name>Properties</name>
  <category>Languages</category>
  <depends>com.intellij.modules.xml</depends>
  <description>
    Enables smart editing of .properties files.
  </description>
  <vendor>JetBrains</vendor>

  <extensionPoints>
    <extensionPoint name="implicitPropertyUsageProvider"
                    interface="com.intellij.codeInspection.unused.ImplicitPropertyUsageProvider"
                    dynamic="true"/>
    <extensionPoint name="alphaUnsortedInspectionSuppressor"
                    interface="com.intellij.codeInspection.unsorted.AlphaUnsortedPropertiesFileInspectionSuppressor"
                    dynamic="true"/>
  </extensionPoints>

  <extensions defaultExtensionNs="com.intellij">
    <typeIcon className="com.intellij.lang.properties.editor.ResourceBundleAsVirtualFile" icon="AllIcons.Nodes.ResourceBundle"/>
    <applicationService serviceImplementation="com.intellij.lang.properties.LastSelectedPropertiesFileStore"/>
    <applicationService serviceInterface="com.intellij.lang.properties.PropertiesQuickFixFactory"
                        serviceImplementation="com.intellij.lang.properties.PropertiesQuickFixFactoryImpl"/>
    <applicationService
        serviceImplementation="com.intellij.lang.properties.refactoring.PropertiesRefactoringSettings"/>
    <annotator language="Properties" implementationClass="com.intellij.lang.properties.PropertiesAnnotator"/>
    <completion.contributor language="any" implementationClass="com.intellij.lang.properties.references.PropertiesCompletionContributor"
                            id="propertiesCompletion" order="before javaClassReference"/>
    <lang.refactoringSupport language="Properties"
                             implementationClass="com.intellij.lang.properties.refactoring.PropertiesRefactoringSupportProvider"/>
    <lang.documentationProvider language="Properties" implementationClass="com.intellij.lang.properties.PropertiesDocumentationProvider"/>
    <lang.findUsagesProvider language="Properties"
                             implementationClass="com.intellij.lang.properties.findUsages.PropertiesFindUsagesProvider"/>
    <lang.elementManipulator forClass="com.intellij.lang.properties.psi.impl.PropertyKeyImpl"
                             implementationClass="com.intellij.lang.properties.PropertyKeyManipulator"/>
    <lang.elementManipulator forClass="com.intellij.lang.properties.psi.impl.PropertyValueImpl"
                             implementationClass="com.intellij.lang.properties.PropertyValueManipulator"/>
    <lang.elementManipulator forClass="com.intellij.lang.properties.psi.impl.PropertyImpl"
                             implementationClass="com.intellij.lang.properties.PropertyManipulator"/>
    <projectService serviceImplementation="com.intellij.lang.properties.structureView.PropertiesSeparatorManager"/>
    <projectService serviceImplementation="com.intellij.lang.properties.ResourceBundleManager"/>
    <codeInsight.wordCompletionFilter language="Properties"
                                      implementationClass="com.intellij.lang.properties.PropertiesWordCompletionFilter"/>
    <lang.psiStructureViewFactory language="Properties"
                                  implementationClass="com.intellij.lang.properties.structureView.PropertiesStructureViewBuilderFactory"/>
    <lang.ast.factory language="Properties" implementationClass="com.intellij.lang.properties.psi.impl.PropertiesASTFactory"/>
    <joinLinesHandler implementation="com.intellij.lang.properties.PropertiesJoinLinesHandler"/>

    <enterHandlerDelegate implementation="com.intellij.codeInsight.editorActions.enter.EnterInPropertiesFileHandler"/>

    <lang.syntaxHighlighter language="Properties" implementationClass="com.intellij.lang.properties.PropertiesHighlighter"/>
    <lang.parserDefinition language="Properties" implementationClass="com.intellij.lang.properties.parsing.PropertiesParserDefinition"/>
    <renameHandler implementation="com.intellij.lang.properties.refactoring.rename.ResourceBundleFromProjectViewRenameHandler"/>
    <automaticRenamerFactory implementation="com.intellij.lang.properties.refactoring.rename.ResourceBundleRenamerFactory"/>
    <renamePsiElementProcessor implementation="com.intellij.lang.properties.refactoring.rename.RenamePropertyProcessor"/>
    <stubElementTypeHolder class="com.intellij.lang.properties.parsing.PropertiesElementTypes"/>
    <lang.commenter language="Properties" implementationClass="com.intellij.lang.properties.PropertiesCommenter"/>
    <stubIndex implementation="com.intellij.lang.properties.psi.PropertyKeyIndex"/>
    <lang.namesValidator language="Properties" implementationClass="com.intellij.lang.properties.PropertiesNamesValidator"/>
    <refactoring.safeDeleteProcessor implementation="com.intellij.lang.properties.refactoring.PropertiesFilesSafeDeleteProcessor"/>
    <refactoring.safeDeleteProcessor implementation="com.intellij.lang.properties.refactoring.PropertyKeysSafeDeleteProcessor"/>
    <refactoring.moveHandler implementation="com.intellij.lang.properties.projectView.ResourceBundleMoveProvider"/>
    <colorSettingsPage implementation="com.intellij.openapi.options.colors.pages.PropertiesColorsPage"/>
    <treeStructureProvider implementation="com.intellij.lang.properties.projectView.ResourceBundleGrouper"/>
    <elementDescriptionProvider implementation="com.intellij.lang.properties.PropertiesDescriptionProvider"/>
    <fileType name="Properties" language="Properties" extensions="properties" fieldName="INSTANCE" implementationClass="com.intellij.lang.properties.PropertiesFileType"/>
    <fileType name="ResourceBundle" fieldName="INSTANCE" implementationClass="com.intellij.lang.properties.editor.ResourceBundleFileType"/>

    <favoriteNodeProvider implementation="com.intellij.ide.favoritesTreeView.ResourcesFavoriteNodeProvider"/>

    <localInspection language="Properties" shortName="UnusedProperty" bundle="messages.PropertiesBundle"
                     key="unused.property.inspection.display.name"
                     groupKey="properties.files.inspection.group.display.name" enabledByDefault="true" level="WARNING"
                     implementationClass="com.intellij.codeInspection.unused.UnusedPropertyInspection"/>
    <globalInspection language="Properties" shortName="DuplicatePropertyInspection" bundle="messages.InspectionsBundle"
                      key="duplicate.property.display.name"
                      groupKey="group.names.properties.files" enabledByDefault="false" level="WARNING"
                      implementationClass="com.intellij.codeInspection.duplicatePropertyInspection.DuplicatePropertyInspection"/>
    <localInspection language="Properties" shortName="TrailingSpacesInProperty" bundle="messages.PropertiesBundle"
                     key="trail.spaces.property.inspection.display.name" groupKey="properties.files.inspection.group.display.name"
                     enabledByDefault="true" level="WARNING"
                     implementationClass="com.intellij.codeInspection.TrailingSpacesInPropertyInspection"/>
    <localInspection language="Properties" shortName="AlphaUnsortedPropertiesFile" bundle="messages.PropertiesBundle"
                     key="alpha.unsorted.properties.file.inspection.display.name" groupKey="properties.files.inspection.group.display.name"
                     enabledByDefault="false" level="WEAK WARNING"
                     implementationClass="com.intellij.codeInspection.unsorted.AlphaUnsortedPropertiesFileInspection"/>
    <localInspection language="Properties" shortName="WrongPropertyKeyValueDelimiter" bundle="messages.PropertiesBundle"
                     key="wrong.property.key.value.delimiter.inspection.display.name" groupKey="properties.files.inspection.group.display.name"
                     enabledByDefault="true" level="WEAK WARNING" cleanupTool="true"
                     implementationClass="com.intellij.codeInspection.WrongPropertyKeyValueDelimiterInspection"/>

    <idIndexer filetype="Properties" implementationClass="com.intellij.psi.impl.cache.impl.idCache.PropertiesIdIndexer"/>
    <todoIndexer filetype="Properties" implementationClass="com.intellij.psi.impl.cache.impl.idCache.PropertiesTodoIndexer"/>

    <projectService serviceImplementation="com.intellij.lang.properties.PropertiesReferenceManager"/>

    <spellchecker.support language="Properties"
                          id="propertiesSpellcheckingStrategy"
                          implementationClass="com.intellij.lang.properties.spellchecker.PropertiesSpellcheckingStrategy"/>

    <fileBasedIndex implementation="com.intellij.lang.properties.xml.XmlPropertiesIndex"/>
    <standardResource url="http://java.sun.com/dtd/properties.dtd" path="schemas/properties.dtd"/>
    <iconProvider implementation="com.intellij.lang.properties.xml.XmlPropertiesIconProvider"/>
    <psi.referenceContributor language="XML" implementation="com.intellij.lang.properties.xml.XmlPropertiesReferenceContributor"/>
    <lang.foldingBuilder language="Properties" implementationClass="com.intellij.lang.properties.editor.PropertiesFoldingBuilder"/>

    <langCodeStyleSettingsProvider implementation="com.intellij.lang.properties.psi.codeStyle.PropertiesLanguageCodeStyleSettingsProvider"/>

    <internalFileTemplate name="XML Properties File.xml"/>
    <refactoring.copyHandler implementation="com.intellij.lang.properties.editor.PropertiesCopyHandler" id="properties"/>
    <lang.formatter language="Properties" implementationClass="com.intellij.lang.properties.formatting.PropertiesFormattingModelBuilder"/>

    <definitionsScopedSearch implementation="com.intellij.lang.properties.editor.PropertiesInheritorsSearcher"/>
    <gotoDeclarationHandler implementation="com.intellij.lang.properties.editor.GotoPropertyParentDeclarationHandler"/>

    <properties.implicitPropertyUsageProvider implementation="com.intellij.codeInspection.unused.LoggerConfigPropertyUsageProvider"/>

    <stripTrailingSpacesFilterFactory implementation="com.intellij.lang.properties.formatting.PropertiesStripTrailingSpacesFilterFactory"/>

    <lang.inspectionSuppressor language="Properties" implementationClass="com.intellij.codeInspection.PropertiesInspectionSuppressor"/>
    <qualifiedNameProvider implementation="com.intellij.ide.actions.PropertiesQualifiedNameProvider"/>
  </extensions>
  <projectListeners>
    <listener class="com.intellij.lang.properties.Native2AsciiListener" topic="com.intellij.openapi.vfs.encoding.EncodingManagerListener"/>
  </projectListeners>

  <actions>
    <action id="DissociateResourceBundleAction" text="Dissociate Resource Bundle" class="com.intellij.lang.properties.customizeActions.DissociateResourceBundleAction">
      <add-to-group group-id="ProjectViewPopupMenu"/>
    </action>
    <action id="CombinePropertiesFilesAction" class="com.intellij.lang.properties.customizeActions.CombinePropertiesFilesAction">
      <add-to-group group-id="ProjectViewPopupMenu"/>
    </action>
    <action id="AddNewPropertyFile" class="com.intellij.lang.properties.create.AddNewPropertyFileAction">
      <add-to-group group-id="NewGroup" anchor="first"/>
    </action>
    <action id="CreateResourceBundle" class="com.intellij.lang.properties.create.CreateResourceBundleAction">
      <add-to-group group-id="NewGroup" anchor="after" relative-to-action="NewFromTemplate"/>
    </action>

  </actions>
</idea-plugin>