diff --git oak-api/pom.xml oak-api/pom.xml
index 2893523..601c3ff 100644
--- oak-api/pom.xml
+++ oak-api/pom.xml
@@ -34,6 +34,18 @@
       <plugin>
         <groupId>org.apache.felix</groupId>
         <artifactId>maven-bundle-plugin</artifactId>
+        <executions>
+          <execution>
+            <id>baseline</id>
+            <goals>
+              <goal>baseline</goal>
+            </goals>
+            <phase>pre-integration-test</phase>
+            <configuration>
+              <comparisonArtifactId>oak-core</comparisonArtifactId>
+            </configuration>
+          </execution>
+        </executions>
       </plugin>
       <plugin>
         <groupId>org.apache.felix</groupId>
diff --git oak-api/src/main/java/org/apache/jackrabbit/oak/api/jmx/CheckpointMBean.java oak-api/src/main/java/org/apache/jackrabbit/oak/api/jmx/CheckpointMBean.java
index c4c4450..d331b0c 100644
--- oak-api/src/main/java/org/apache/jackrabbit/oak/api/jmx/CheckpointMBean.java
+++ oak-api/src/main/java/org/apache/jackrabbit/oak/api/jmx/CheckpointMBean.java
@@ -51,12 +51,6 @@ public interface CheckpointMBean {
     Date getOldestCheckpointCreationDate();
 
     /**
-     * @return creation information about oldest checkpoint.
-     */
-    @Deprecated
-    CompositeData getOldestCheckpointCreationTime();
-
-    /**
      * Create a new checkpoint with the given {@code lifetime}.
      * See {@code org.apache.jackrabbit.oak.spi.state.NodeStore#checkpoint}
      * @param lifetime
diff --git oak-core-spi/src/main/java/org/apache/jackrabbit/oak/commons/jmx/AbstractCheckpointMBean.java oak-core-spi/src/main/java/org/apache/jackrabbit/oak/commons/jmx/AbstractCheckpointMBean.java
index 198ebbf..4449286 100644
--- oak-core-spi/src/main/java/org/apache/jackrabbit/oak/commons/jmx/AbstractCheckpointMBean.java
+++ oak-core-spi/src/main/java/org/apache/jackrabbit/oak/commons/jmx/AbstractCheckpointMBean.java
@@ -102,7 +102,7 @@ public abstract class AbstractCheckpointMBean implements CheckpointMBean {
         return new Date(getOldestCheckpointCreationTimestamp());
     }
 
-    @Override
+
     public CompositeData getOldestCheckpointCreationTime() {
         try {
             Map<String, Object> values = Maps.newHashMap();
diff --git oak-parent/pom.xml oak-parent/pom.xml
index f5ff748..9c0ea05 100644
--- oak-parent/pom.xml
+++ oak-parent/pom.xml
@@ -167,6 +167,7 @@
                 <logResults>false</logResults>
                 <failOnWarning>false</failOnWarning>
                 <failOnError>true</failOnError>
+                <comparisonVersion>1.6.0</comparisonVersion>
                 <filters>
                   <!-- Disable baseline for explicitly NOT managed packages. See OAK-3842 -->
                   <filter>!org.apache.jackrabbit.oak.cache</filter>