Package source JARs for antlr, httpd, server

Change-Id: I9879c8d995b83925bc3a798a5e3668be133f8a3d
Signed-off-by: Shawn O. Pearce <sop@google.com>
diff --git a/gerrit-antlr/pom.xml b/gerrit-antlr/pom.xml
index 4b9e3ad..8ee4786 100644
--- a/gerrit-antlr/pom.xml
+++ b/gerrit-antlr/pom.xml
@@ -52,6 +52,18 @@
           </execution>
         </executions>
       </plugin>
+
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-source-plugin</artifactId>
+        <executions>
+          <execution>
+            <goals>
+              <goal>jar</goal>
+            </goals>
+          </execution>
+        </executions>
+      </plugin>
     </plugins>
   </build>
 </project>
diff --git a/gerrit-httpd/pom.xml b/gerrit-httpd/pom.xml
index 5154515..ccc9441 100644
--- a/gerrit-httpd/pom.xml
+++ b/gerrit-httpd/pom.xml
@@ -93,4 +93,20 @@
       <version>${project.version}</version>
     </dependency>
   </dependencies>
+
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-source-plugin</artifactId>
+        <executions>
+          <execution>
+            <goals>
+              <goal>jar</goal>
+            </goals>
+          </execution>
+        </executions>
+      </plugin>
+    </plugins>
+  </build>
 </project>
diff --git a/gerrit-server/pom.xml b/gerrit-server/pom.xml
index 3302e36..1c766f6 100644
--- a/gerrit-server/pom.xml
+++ b/gerrit-server/pom.xml
@@ -215,6 +215,18 @@
           </execution>
         </executions>
       </plugin>
+
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-source-plugin</artifactId>
+        <executions>
+          <execution>
+            <goals>
+              <goal>jar</goal>
+            </goals>
+          </execution>
+        </executions>
+      </plugin>
     </plugins>
   </build>
 </project>