diff --git a/.ci/dev/regression/Jenkinsfile b/.ci/dev/regression/Jenkinsfile
index 77aad30eeb..9af46eba66 100644
--- a/.ci/dev/regression/Jenkinsfile
+++ b/.ci/dev/regression/Jenkinsfile
@@ -18,6 +18,7 @@ killAllExistingBuildsForJob(env.JOB_NAME, env.BUILD_NUMBER.toInteger())
  * Sense environment
  */
 boolean isReleaseTag = (env.TAG_NAME =~ /^release-.*(?<!_JDK11)$/)
+boolean isInternalRelease = (env.TAG_NAME =~ /^internal-release-.*$/)
 /*
 ** calculate the stage for NexusIQ evaluation
 **  * build for snapshots
@@ -159,7 +160,7 @@ pipeline {
 
         stage('Publish Release to Docker Hub') {
             when {
-                expression { isReleaseTag }
+                expression { !isInternalRelease && isReleaseTag }
             }
             steps {
                 withCredentials([
diff --git a/testing/node-driver/src/main/java/net/corda/testing/driver/SharedMemoryIncremental.java b/testing/node-driver/src/main/java/net/corda/testing/driver/SharedMemoryIncremental.java
index a3ca4e8aef..7d97f33140 100644
--- a/testing/node-driver/src/main/java/net/corda/testing/driver/SharedMemoryIncremental.java
+++ b/testing/node-driver/src/main/java/net/corda/testing/driver/SharedMemoryIncremental.java
@@ -17,7 +17,7 @@ import java.nio.channels.FileChannel;
  * import sun.misc.Unsafe;
  * import sun.nio.ch.DirectBuffer;
  */
-class SharedMemoryIncremental extends PortAllocation {
+public class SharedMemoryIncremental extends PortAllocation {
 
     static private final int DEFAULT_START_PORT = 10_000;
     static private final int FIRST_EPHEMERAL_PORT = 30_000;