[maven-release-plugin] prepare release maven-indexer-6.0.0
diff --git a/indexer-cli/pom.xml b/indexer-cli/pom.xml
index 306948a..2c478e1 100644
--- a/indexer-cli/pom.xml
+++ b/indexer-cli/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.maven.indexer</groupId>
     <artifactId>maven-indexer</artifactId>
-    <version>6.0.0-SNAPSHOT</version>
+    <version>6.0.0</version>
   </parent>
 
   <artifactId>indexer-cli</artifactId>
diff --git a/indexer-core/pom.xml b/indexer-core/pom.xml
index 35b5df1..a441ca7 100644
--- a/indexer-core/pom.xml
+++ b/indexer-core/pom.xml
@@ -17,14 +17,13 @@
 specific language governing permissions and limitations
 under the License.
 -->
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
   <modelVersion>4.0.0</modelVersion>
 
   <parent>
     <groupId>org.apache.maven.indexer</groupId>
     <artifactId>maven-indexer</artifactId>
-    <version>6.0.0-SNAPSHOT</version>
+    <version>6.0.0</version>
   </parent>
 
   <artifactId>indexer-core</artifactId>
@@ -268,7 +267,7 @@
                 </filter>
               </filters>
               <transformers>
-                <transformer implementation="org.apache.maven.plugins.shade.resource.ServicesResourceTransformer"/>
+                <transformer implementation="org.apache.maven.plugins.shade.resource.ServicesResourceTransformer" />
               </transformers>
             </configuration>
           </execution>
diff --git a/indexer-examples/indexer-examples-basic/pom.xml b/indexer-examples/indexer-examples-basic/pom.xml
index ea6ea8d..69015c1 100644
--- a/indexer-examples/indexer-examples-basic/pom.xml
+++ b/indexer-examples/indexer-examples-basic/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.maven.indexer</groupId>
     <artifactId>maven-indexer-examples</artifactId>
-    <version>6.0.0-SNAPSHOT</version>
+    <version>6.0.0</version>
   </parent>
 
   <artifactId>indexer-examples-basic</artifactId>
diff --git a/indexer-examples/indexer-examples-spring/pom.xml b/indexer-examples/indexer-examples-spring/pom.xml
index 9a98f6a..13f44d8 100644
--- a/indexer-examples/indexer-examples-spring/pom.xml
+++ b/indexer-examples/indexer-examples-spring/pom.xml
@@ -17,16 +17,14 @@
 specific language governing permissions and limitations
 under the License.
 -->
-<project xmlns="http://maven.apache.org/POM/4.0.0"
-         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 
   <modelVersion>4.0.0</modelVersion>
 
   <parent>
     <groupId>org.apache.maven.indexer</groupId>
     <artifactId>maven-indexer-examples</artifactId>
-    <version>6.0.0-SNAPSHOT</version>
+    <version>6.0.0</version>
   </parent>
 
   <artifactId>indexer-examples-spring</artifactId>
diff --git a/indexer-examples/pom.xml b/indexer-examples/pom.xml
index 9eac01a..6b9608e 100644
--- a/indexer-examples/pom.xml
+++ b/indexer-examples/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.maven.indexer</groupId>
     <artifactId>maven-indexer</artifactId>
-    <version>6.0.0-SNAPSHOT</version>
+    <version>6.0.0</version>
   </parent>
 
   <artifactId>maven-indexer-examples</artifactId>
diff --git a/indexer-reader/pom.xml b/indexer-reader/pom.xml
index 2c9a9ec..a6d7aa8 100644
--- a/indexer-reader/pom.xml
+++ b/indexer-reader/pom.xml
@@ -17,14 +17,13 @@
 specific language governing permissions and limitations
 under the License.
 -->
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
   <modelVersion>4.0.0</modelVersion>
 
   <parent>
     <groupId>org.apache.maven.indexer</groupId>
     <artifactId>maven-indexer</artifactId>
-    <version>6.0.0-SNAPSHOT</version>
+    <version>6.0.0</version>
   </parent>
 
   <artifactId>indexer-reader</artifactId>
diff --git a/pom.xml b/pom.xml
index 49d31ee..c883e90 100644
--- a/pom.xml
+++ b/pom.xml
@@ -17,8 +17,7 @@
 specific language governing permissions and limitations
 under the License.
 -->
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
   <modelVersion>4.0.0</modelVersion>
 
   <parent>
@@ -29,7 +28,7 @@
 
   <groupId>org.apache.maven.indexer</groupId>
   <artifactId>maven-indexer</artifactId>
-  <version>6.0.0-SNAPSHOT</version>
+  <version>6.0.0</version>
   <packaging>pom</packaging>
 
   <name>Maven-Indexer</name>
@@ -65,6 +64,7 @@
     <connection>scm:git:https://git-wip-us.apache.org/repos/asf/maven-indexer.git</connection>
     <developerConnection>scm:git:https://git-wip-us.apache.org/repos/asf/maven-indexer.git</developerConnection>
     <url>https://github.com/apache/maven-indexer</url>
+    <tag>maven-indexer-6.0.0</tag>
   </scm>
 
   <issueManagement>