added maven-central OSSRH integration

Author: KaiSchwarz-cnic

.gitignore

@@ -29,3 +29,4 @@ target/*
 pom.xml.versionsBackup
 pom.xml.releaseBackup
 release.properties%  
+settings.xml

pom.xml

@@ -46,26 +46,30 @@
   </dependencies>
 
   <distributionManagement>
-    <repository>
-      <uniqueVersion>false</uniqueVersion>
-      <id>java-sdk-releases</id>
-      <name>java-sdk releases</name>
-      <url>file:///tmp</url>
-      <layout>default</layout>
-    </repository>
     <snapshotRepository>
-      <uniqueVersion>true</uniqueVersion>
-      <id>java-sdk-snapshots</id>
-      <name>java-sdk snapshots</name>
-      <url>file:///tmp</url>
-      <layout>default</layout>
+      <id>ossrh</id>
+      <url>https://oss.sonatype.org/content/repositories/snapshots</url>
     </snapshotRepository>
+    <repository>
+      <id>ossrh</id>
+      <url>https://oss.sonatype.org/service/local/staging/deploy/maven2/</url>
+    </repository>
   </distributionManagement>
-  <!-- https://stackoverflow.com/questions/14013644/hosting-a-maven-repository-on-github?utm_medium=organic&utm_source=google_rich_qa&utm_campaign=google_rich_qa -->
 
   <build>
     <pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) -->
       <plugins>
+        <plugin>
+          <groupId>org.sonatype.plugins</groupId>
+          <artifactId>nexus-staging-maven-plugin</artifactId>
+          <version>1.6.8</version>
+          <extensions>true</extensions>
+          <configuration>
+            <serverId>ossrh</serverId>
+            <nexusUrl>https://oss.sonatype.org/</nexusUrl>
+            <autoReleaseAfterClose>true</autoReleaseAfterClose>
+          </configuration>
+        </plugin>
         <plugin>
           <artifactId>maven-clean-plugin</artifactId>
           <version>3.1.0</version>
@@ -102,11 +106,27 @@
           <groupId>org.apache.maven.plugins</groupId>
           <artifactId>maven-source-plugin</artifactId>
           <version>3.0.1</version>
+          <executions>
+            <execution>
+              <id>attach-sources</id>
+              <goals>
+                <goal>jar-no-fork</goal>
+              </goals>
+            </execution>
+          </executions>
         </plugin>
         <plugin>
           <groupId>org.apache.maven.plugins</groupId>
           <artifactId>maven-javadoc-plugin</artifactId>
           <version>3.0.0</version>
+          <executions>
+            <execution>
+              <id>attach-javadocs</id>
+              <goals>
+                <goal>jar</goal>
+              </goals>
+            </execution>
+          </executions>
         </plugin>
         <plugin>
           <groupId>org.apache.maven.plugins</groupId>
@@ -118,6 +138,20 @@
             <completionGoals>git-changelog:git-changelog scm:checkin -DpushChanges=false -Dincludes=CHANGELOG.md -Dmessage="[maven-release-plugin] Update CHANGELOG.md"</completionGoals>
           </configuration>
         </plugin>
+        <plugin>
+          <groupId>org.apache.maven.plugins</groupId>
+          <artifactId>maven-gpg-plugin</artifactId>
+          <version>1.6</version>
+          <executions>
+            <execution>
+              <id>sign-artifacts</id>
+              <phase>verify</phase>
+              <goals>
+                <goal>sign</goal>
+              </goals>
+            </execution>
+          </executions>
+        </plugin>
         <plugin>
           <groupId>info.plichta.maven.plugins</groupId>
           <artifactId>git-changelog-maven-plugin</artifactId>