java: pom.xml: Add "release" profile for deploying and releasing arti…

…facts to the OSS Sonatype repository.

From there, packages will be automatically synced to Maven Central.

java/pom.xml

@@ -205,6 +205,13 @@
     </dependencies>
   </dependencyManagement>
 
+  <distributionManagement>
+    <snapshotRepository>
+      <id>ossrh</id>
+      <url>https://oss.sonatype.org/content/repositories/snapshots</url>
+    </snapshotRepository>
+  </distributionManagement>
+
   <build>
     <plugins>
       <plugin>
@@ -235,4 +242,79 @@
       </plugin>
     </plugins>
   </build>
+
+  <!-- "release" Profile for releasing to OSS Sonatype which syncs to Maven Central. -->
+  <profiles>
+    <profile>
+      <id>release</id>
+      <build>
+        <plugins>
+          <plugin>
+            <groupId>org.sonatype.plugins</groupId>
+            <artifactId>nexus-staging-maven-plugin</artifactId>
+            <version>1.6.7</version>
+            <extensions>true</extensions>
+            <configuration>
+              <serverId>ossrh</serverId>
+              <nexusUrl>https://oss.sonatype.org/</nexusUrl>
+              <autoReleaseAfterClose>true</autoReleaseAfterClose>
+            </configuration>
+          </plugin>
+          <plugin>
+            <groupId>org.apache.maven.plugins</groupId>
+            <artifactId>maven-source-plugin</artifactId>
+            <version>2.2.1</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>2.9.1</version>
+            <executions>
+              <execution>
+                <id>attach-javadocs</id>
+                <goals>
+                  <goal>jar</goal>
+                </goals>
+              </execution>
+            </executions>
+          </plugin>
+          <plugin>
+            <groupId>org.apache.maven.plugins</groupId>
+            <artifactId>maven-gpg-plugin</artifactId>
+            <version>1.5</version>
+            <executions>
+              <execution>
+                <id>sign-artifacts</id>
+                <phase>verify</phase>
+                <goals>
+                  <goal>sign</goal>
+                </goals>
+              </execution>
+            </executions>
+          </plugin>
+        </plugins>
+      </build>
+    </profile>
+
+    <!-- Disable doclint in Java 8. See http://stackoverflow.com/questions/15886209/maven-is-not-working-in-java-8-when-javadoc-tags-are-incomplete.
+      TODO(mberlin): Remove this once we fixed all lint errors. -->
+    <profile>
+      <id>disable-java8-doclint</id>
+      <activation>
+        <jdk>[1.8,)</jdk>
+      </activation>
+      <properties>
+        <additionalparam>-Xdoclint:none</additionalparam>
+      </properties>
+    </profile>
+  </profiles>
+
 </project>