diff --git a/gerrit-common/pom.xml b/gerrit-common/pom.xml
index 69370c391e..eda8e830f4 100644
--- a/gerrit-common/pom.xml
+++ b/gerrit-common/pom.xml
@@ -60,6 +60,7 @@ limitations under the License.
   <build>
     <plugins>
       <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-antrun-plugin</artifactId>
         <executions>
           <execution>
diff --git a/gerrit-gwtui/pom.xml b/gerrit-gwtui/pom.xml
index eec9d10d62..4a8917df92 100644
--- a/gerrit-gwtui/pom.xml
+++ b/gerrit-gwtui/pom.xml
@@ -221,6 +221,7 @@ limitations under the License.
       </plugin>
 
       <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-antrun-plugin</artifactId>
         <executions>
           <execution>
diff --git a/gerrit-main/pom.xml b/gerrit-main/pom.xml
index 2826a2254a..a46aa4ff8a 100644
--- a/gerrit-main/pom.xml
+++ b/gerrit-main/pom.xml
@@ -43,6 +43,7 @@ limitations under the License.
   <build>
     <plugins>
       <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-compiler-plugin</artifactId>
         <configuration>
           <source>1.2</source>
diff --git a/gerrit-war/pom.xml b/gerrit-war/pom.xml
index 34b125b8ff..f83d0a8707 100644
--- a/gerrit-war/pom.xml
+++ b/gerrit-war/pom.xml
@@ -130,6 +130,7 @@ limitations under the License.
       </plugin>
 
       <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-antrun-plugin</artifactId>
         <executions>
           <execution>
diff --git a/pom.xml b/pom.xml
index 11254b2e3d..61d3d91d75 100644
--- a/pom.xml
+++ b/pom.xml
@@ -316,6 +316,7 @@ limitations under the License.
         </plugin>
 
         <plugin>
+          <groupId>org.apache.maven.plugins</groupId>
           <artifactId>maven-compiler-plugin</artifactId>
           <version>2.0.2</version>
         </plugin>
@@ -366,6 +367,7 @@ limitations under the License.
 
     <plugins>
       <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-compiler-plugin</artifactId>
         <configuration>
           <source>1.6</source>
@@ -375,6 +377,7 @@ limitations under the License.
       </plugin>
 
       <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-source-plugin</artifactId>
         <executions>
           <execution>