diff --git a/gcloud-java-bigquery/src/main/java/com/google/cloud/bigquery/BigQueryException.java b/gcloud-java-bigquery/src/main/java/com/google/cloud/bigquery/BigQueryException.java
index 501ec1e809e2..0b0c7d3152e3 100644
--- a/gcloud-java-bigquery/src/main/java/com/google/cloud/bigquery/BigQueryException.java
+++ b/gcloud-java-bigquery/src/main/java/com/google/cloud/bigquery/BigQueryException.java
@@ -31,7 +31,7 @@
  * @see <a href="https://cloud.google.com/bigquery/troubleshooting-errors">Google Cloud
  *      BigQuery error codes</a>
  */
-public class BigQueryException extends BaseServiceException {
+public final class BigQueryException extends BaseServiceException {
 
   // see: https://cloud.google.com/bigquery/troubleshooting-errors
   private static final Set<Error> RETRYABLE_ERRORS = ImmutableSet.of(
@@ -47,12 +47,12 @@ public BigQueryException(int code, String message) {
     this(code, message, (Throwable) null);
   }
 
-  BigQueryException(int code, String message, Throwable cause) {
+  public BigQueryException(int code, String message, Throwable cause) {
     super(code, message, null, true, cause);
     this.error = null;
   }
 
-  BigQueryException(int code, String message, BigQueryError error) {
+  public BigQueryException(int code, String message, BigQueryError error) {
     super(code, message, error != null ? error.reason() : null, true);
     this.error = error;
   }
diff --git a/gcloud-java-datastore/src/main/java/com/google/cloud/datastore/DatastoreException.java b/gcloud-java-datastore/src/main/java/com/google/cloud/datastore/DatastoreException.java
index de04a0a563f2..42c0079e0a77 100644
--- a/gcloud-java-datastore/src/main/java/com/google/cloud/datastore/DatastoreException.java
+++ b/gcloud-java-datastore/src/main/java/com/google/cloud/datastore/DatastoreException.java
@@ -30,14 +30,14 @@
  * @see <a href="https://cloud.google.com/datastore/docs/concepts/errors#Error_Codes">Google Cloud
  *      Datastore error codes</a>
  */
-public class DatastoreException extends BaseServiceException {
+public final class DatastoreException extends BaseServiceException {
 
   // see https://cloud.google.com/datastore/docs/concepts/errors#Error_Codes"
   private static final Set<Error> RETRYABLE_ERRORS = ImmutableSet.of(
       new Error(10, "ABORTED"), new Error(4, "DEADLINE_EXCEEDED"), new Error(14, "UNAVAILABLE"));
   private static final long serialVersionUID = 2663750991205874435L;
 
-  DatastoreException(int code, String message, String reason) {
+  public DatastoreException(int code, String message, String reason) {
     this(code, message, reason, null);
   }
 
diff --git a/gcloud-java-dns/src/main/java/com/google/cloud/dns/DnsException.java b/gcloud-java-dns/src/main/java/com/google/cloud/dns/DnsException.java
index ef183aa39d0c..90c32aee1681 100644
--- a/gcloud-java-dns/src/main/java/com/google/cloud/dns/DnsException.java
+++ b/gcloud-java-dns/src/main/java/com/google/cloud/dns/DnsException.java
@@ -28,7 +28,7 @@
 /**
  * DNS service exception.
  */
-public class DnsException extends BaseServiceException {
+public final class DnsException extends BaseServiceException {
 
   // see: https://cloud.google.com/dns/troubleshooting
   private static final Set<Error> RETRYABLE_ERRORS = ImmutableSet.of(
@@ -48,7 +48,7 @@ public DnsException(GoogleJsonError error, boolean idempotent) {
     super(error, idempotent);
   }
 
-  DnsException(int code, String message, Throwable cause) {
+  public DnsException(int code, String message, Throwable cause) {
     super(code, message, null, true, cause);
   }
 
diff --git a/gcloud-java-resourcemanager/src/main/java/com/google/cloud/resourcemanager/ResourceManagerException.java b/gcloud-java-resourcemanager/src/main/java/com/google/cloud/resourcemanager/ResourceManagerException.java
index a916eefd86a4..2a6906fc0090 100644
--- a/gcloud-java-resourcemanager/src/main/java/com/google/cloud/resourcemanager/ResourceManagerException.java
+++ b/gcloud-java-resourcemanager/src/main/java/com/google/cloud/resourcemanager/ResourceManagerException.java
@@ -30,7 +30,7 @@
  * @see <a href="https://cloud.google.com/resource-manager/v1/errors/core_errors">Google Cloud
  *      Resource Manager error codes</a>
  */
-public class ResourceManagerException extends BaseServiceException {
+public final class ResourceManagerException extends BaseServiceException {
 
   // see https://cloud.google.com/resource-manager/v1/errors/core_errors
   private static final Set<Error> RETRYABLE_ERRORS = ImmutableSet.of(
@@ -47,11 +47,11 @@ public class ResourceManagerException extends BaseServiceException {
       new Error(403, "variableTermLimitExceeded"));
   private static final long serialVersionUID = -9207194488966554136L;
 
-  ResourceManagerException(int code, String message) {
+  public ResourceManagerException(int code, String message) {
     this(code, message, null);
   }
 
-  ResourceManagerException(int code, String message, Throwable cause) {
+  public ResourceManagerException(int code, String message, Throwable cause) {
     super(code, message, null, true, cause);
   }
 
diff --git a/gcloud-java-storage/src/main/java/com/google/cloud/storage/StorageException.java b/gcloud-java-storage/src/main/java/com/google/cloud/storage/StorageException.java
index 89690090369d..e0dcd8df0946 100644
--- a/gcloud-java-storage/src/main/java/com/google/cloud/storage/StorageException.java
+++ b/gcloud-java-storage/src/main/java/com/google/cloud/storage/StorageException.java
@@ -31,7 +31,7 @@
  * @see <a href="https://cloud.google.com/storage/docs/json_api/v1/status-codes">Google Cloud
  *      Storage error codes</a>
  */
-public class StorageException extends BaseServiceException {
+public final class StorageException extends BaseServiceException {
 
   // see: https://cloud.google.com/storage/docs/resumable-uploads-xml#practices
   private static final Set<Error> RETRYABLE_ERRORS = ImmutableSet.of(
@@ -49,7 +49,7 @@ public StorageException(int code, String message) {
     this(code, message, null);
   }
 
-  StorageException(int code, String message, Throwable cause) {
+  public StorageException(int code, String message, Throwable cause) {
     super(code, message, null, true, cause);
   }