Add OSGi headers to pom files.

This addresses https://github.com/protocolbuffers/protobuf/issues/12017.

PiperOrigin-RevId: 511587640

java/core/pom_template.xml

@@ -18,4 +18,24 @@
   <dependencies>
     {dependencies}
   </dependencies>
+
+  <build>
+    <plugins>
+      <!-- OSGI bundle configuration -->
+      <plugin>
+        <groupId>org.apache.felix</groupId>
+        <artifactId>maven-bundle-plugin</artifactId>
+        <extensions>true</extensions>
+        <configuration>
+          <instructions>
+            <Automatic-Module-Name>com.google.protobuf</Automatic-Module-Name> <!-- Java9+ Jigsaw module name -->
+            <Bundle-DocURL>https://developers.google.com/protocol-buffers/</Bundle-DocURL>
+            <Bundle-SymbolicName>com.google.protobuf</Bundle-SymbolicName>
+            <Export-Package>com.google.protobuf;version=${project.version}</Export-Package>
+            <Import-Package>sun.misc;resolution:=optional,*</Import-Package>
+          </instructions>
+        </configuration>
+      </plugin>
+    </plugins>
+  </build>
 </project>

java/lite/pom_template.xml

@@ -19,4 +19,23 @@
     {dependencies}
   </dependencies>
 
+  <build>
+    <plugins>
+      <!-- OSGI bundle configuration -->
+      <plugin>
+        <groupId>org.apache.felix</groupId>
+        <artifactId>maven-bundle-plugin</artifactId>
+        <extensions>true</extensions>
+        <configuration>
+          <instructions>
+            <Automatic-Module-Name>com.google.protobuf</Automatic-Module-Name> <!-- Java9+ Jigsaw module name -->
+            <Bundle-DocURL>https://developers.google.com/protocol-buffers/</Bundle-DocURL>
+            <Bundle-SymbolicName>com.google.protobuf</Bundle-SymbolicName>
+            <Export-Package>com.google.protobuf;version=${project.version}</Export-Package>
+            <Import-Package>sun.misc;resolution:=optional,*</Import-Package>
+          </instructions>
+        </configuration>
+      </plugin>
+    </plugins>
+  </build>
 </project>

java/util/pom_template.xml

@@ -20,4 +20,23 @@
     {dependencies}
   </dependencies>
 
+  <build>
+    <plugins>
+      <!-- OSGI bundle configuration -->
+      <plugin>
+        <groupId>org.apache.felix</groupId>
+        <artifactId>maven-bundle-plugin</artifactId>
+        <extensions>true</extensions>
+        <configuration>
+          <instructions>
+            <Automatic-Module-Name>com.google.protobuf.util</Automatic-Module-Name> <!-- Java9+ Jigsaw module name -->
+            <Bundle-DocURL>https://developers.google.com/protocol-buffers/</Bundle-DocURL>
+            <Bundle-SymbolicName>com.google.protobuf.util</Bundle-SymbolicName>
+            <Export-Package>com.google.protobuf.util;version=${project.version}</Export-Package>
+          </instructions>
+        </configuration>
+      </plugin>
+    </plugins>
+  </build>
+
 </project>