From fa15b29dfc3976b7d141875726e1d5c827a016d7 Mon Sep 17 00:00:00 2001
From: Clebert Suconic <clebertsuconic@apache.org>
Date: Tue, 1 Sep 2015 23:26:54 -0400
Subject: [PATCH] Fixing clustered examples on MacOS (and possibly other envs)

---
 examples/README.md                                   |  7 +++++++
 .../clustered/client-side-load-balancing/pom.xml     |  8 ++++++++
 .../clustered/clustered-durable-subscription/pom.xml |  4 ++++
 .../features/clustered/clustered-grouping/pom.xml    |  6 ++++++
 .../features/clustered/clustered-jgroups/pom.xml     |  4 ++++
 examples/features/clustered/clustered-queue/pom.xml  |  4 ++++
 .../clustered/clustered-static-discovery/pom.xml     |  6 ++++++
 .../clustered/clustered-static-oneway/pom.xml        |  6 ++++++
 examples/features/clustered/clustered-topic/pom.xml  |  4 ++++
 .../clustered/queue-message-redistribution/pom.xml   |  4 ++++
 .../features/clustered/symmetric-cluster/pom.xml     | 12 ++++++------
 11 files changed, 59 insertions(+), 6 deletions(-)

diff --git a/examples/README.md b/examples/README.md
index e9d9e36112..3d0fdd9131 100644
--- a/examples/README.md
+++ b/examples/README.md
@@ -22,6 +22,13 @@ directory but before you do you will need to up the memory used by running:
 ```
 export MAVEN_OPTS="-Xmx1024m -XX:MaxPermSize=256m"
 ```
+
+if you are running a Mac OS, you may want to add this to run the clustered examples:
+
+```
+export MAVEN_OPTS="-Xmx1024m -XX:MaxPermSize=256m -Djava.net.preferIPv4Stack=true"
+```
+
 ### Recreating the examples
 
 If you are trying to copy the examples somewhere else and modifying them. Consider asking Maven to explicitly list all the dependencies:
diff --git a/examples/features/clustered/client-side-load-balancing/pom.xml b/examples/features/clustered/client-side-load-balancing/pom.xml
index c2993b22e1..a9b092c759 100644
--- a/examples/features/clustered/client-side-load-balancing/pom.xml
+++ b/examples/features/clustered/client-side-load-balancing/pom.xml
@@ -59,6 +59,8 @@ under the License.
                      <ignore>${noServer}</ignore>
                      <instance>${basedir}/target/server0</instance>
                      <clustered>true</clustered>
+                     <!-- this makes it easier in certain envs -->
+                     <javaOptions>-Djava.net.preferIPv4Stack=true</javaOptions>
                   </configuration>
                </execution>
                <execution>
@@ -71,6 +73,8 @@ under the License.
                      <instance>${basedir}/target/server1</instance>
                      <clustered>true</clustered>
                      <portOffset>1</portOffset>
+                     <!-- this makes it easier in certain envs -->
+                     <javaOptions>-Djava.net.preferIPv4Stack=true</javaOptions>
                   </configuration>
                </execution>
                <execution>
@@ -83,6 +87,8 @@ under the License.
                      <instance>${basedir}/target/server2</instance>
                      <clustered>true</clustered>
                      <portOffset>2</portOffset>
+                     <!-- this makes it easier in certain envs -->
+                     <javaOptions>-Djava.net.preferIPv4Stack=true</javaOptions>
                   </configuration>
                </execution>
                <execution>
@@ -139,6 +145,8 @@ under the License.
                      <goal>runClient</goal>
                   </goals>
                   <configuration>
+                     <!-- you may have to set export MAVEN_OPTS="-Djava.net.preferIPv4Stack=true"
+                          if you are on MacOS for instance -->
                      <clientClass>org.apache.activemq.artemis.jms.example.ClientSideLoadBalancingExample</clientClass>
                   </configuration>
                </execution>
diff --git a/examples/features/clustered/clustered-durable-subscription/pom.xml b/examples/features/clustered/clustered-durable-subscription/pom.xml
index 8f28710808..d6fbb98ab6 100644
--- a/examples/features/clustered/clustered-durable-subscription/pom.xml
+++ b/examples/features/clustered/clustered-durable-subscription/pom.xml
@@ -60,6 +60,8 @@ under the License.
                      <clustered>true</clustered>
                      <instance>${basedir}/target/server0</instance>
                      <configuration>${basedir}/target/classes/activemq/server0</configuration>
+                     <!-- this makes it easier in certain envs -->
+                     <javaOptions>-Djava.net.preferIPv4Stack=true</javaOptions>
                   </configuration>
                </execution>
                <execution>
@@ -73,6 +75,8 @@ under the License.
                      <instance>${basedir}/target/server1</instance>
                      <configuration>${basedir}/target/classes/activemq/server1</configuration>
                      <portOffset>1</portOffset>
+                     <!-- this makes it easier in certain envs -->
+                     <javaOptions>-Djava.net.preferIPv4Stack=true</javaOptions>
                   </configuration>
                </execution>
                <execution>
diff --git a/examples/features/clustered/clustered-grouping/pom.xml b/examples/features/clustered/clustered-grouping/pom.xml
index b41a2ad0c8..a62589462d 100644
--- a/examples/features/clustered/clustered-grouping/pom.xml
+++ b/examples/features/clustered/clustered-grouping/pom.xml
@@ -59,6 +59,8 @@ under the License.
                      <ignore>${noServer}</ignore>
                      <instance>${basedir}/target/server0</instance>
                      <configuration>${basedir}/target/classes/activemq/server0</configuration>
+                     <!-- this makes it easier in certain envs -->
+                     <javaOptions>-Djava.net.preferIPv4Stack=true</javaOptions>
                   </configuration>
                </execution>
                <execution>
@@ -70,6 +72,8 @@ under the License.
                      <ignore>${noServer}</ignore>
                      <instance>${basedir}/target/server1</instance>
                      <configuration>${basedir}/target/classes/activemq/server1</configuration>
+                     <!-- this makes it easier in certain envs -->
+                     <javaOptions>-Djava.net.preferIPv4Stack=true</javaOptions>
                   </configuration>
                </execution>
                <execution>
@@ -81,6 +85,8 @@ under the License.
                      <ignore>${noServer}</ignore>
                      <instance>${basedir}/target/server2</instance>
                      <configuration>${basedir}/target/classes/activemq/server2</configuration>
+                     <!-- this makes it easier in certain envs -->
+                     <javaOptions>-Djava.net.preferIPv4Stack=true</javaOptions>
                   </configuration>
                </execution>
                <execution>
diff --git a/examples/features/clustered/clustered-jgroups/pom.xml b/examples/features/clustered/clustered-jgroups/pom.xml
index 30f6a2049f..5e22e0ccef 100644
--- a/examples/features/clustered/clustered-jgroups/pom.xml
+++ b/examples/features/clustered/clustered-jgroups/pom.xml
@@ -63,6 +63,8 @@ under the License.
                      <ignore>${noServer}</ignore>
                      <instance>${basedir}/target/server0</instance>
                      <configuration>${basedir}/target/classes/activemq/server0</configuration>
+                     <!-- this makes it easier in certain envs -->
+                     <javaOptions>-Djava.net.preferIPv4Stack=true</javaOptions>
                   </configuration>
                </execution>
                <execution>
@@ -78,6 +80,8 @@ under the License.
                      <ignore>${noServer}</ignore>
                      <instance>${basedir}/target/server1</instance>
                      <configuration>${basedir}/target/classes/activemq/server1</configuration>
+                     <!-- this makes it easier in certain envs -->
+                     <javaOptions>-Djava.net.preferIPv4Stack=true</javaOptions>
                   </configuration>
                </execution>
                <execution>
diff --git a/examples/features/clustered/clustered-queue/pom.xml b/examples/features/clustered/clustered-queue/pom.xml
index 78a8c8ba1c..2f876bedc5 100644
--- a/examples/features/clustered/clustered-queue/pom.xml
+++ b/examples/features/clustered/clustered-queue/pom.xml
@@ -59,6 +59,8 @@ under the License.
                      <ignore>${noServer}</ignore>
                      <instance>${basedir}/target/server0</instance>
                      <configuration>${basedir}/target/classes/activemq/server0</configuration>
+                     <!-- this makes it easier in certain envs -->
+                     <javaOptions>-Djava.net.preferIPv4Stack=true</javaOptions>
                   </configuration>
                </execution>
                <execution>
@@ -70,6 +72,8 @@ under the License.
                      <ignore>${noServer}</ignore>
                      <instance>${basedir}/target/server1</instance>
                      <configuration>${basedir}/target/classes/activemq/server1</configuration>
+                     <!-- this makes it easier in certain envs -->
+                     <javaOptions>-Djava.net.preferIPv4Stack=true</javaOptions>
                   </configuration>
                </execution>
                <execution>
diff --git a/examples/features/clustered/clustered-static-discovery/pom.xml b/examples/features/clustered/clustered-static-discovery/pom.xml
index b3ce3c14e2..860a717390 100644
--- a/examples/features/clustered/clustered-static-discovery/pom.xml
+++ b/examples/features/clustered/clustered-static-discovery/pom.xml
@@ -64,6 +64,8 @@ under the License.
                      <ignore>${noServer}</ignore>
                      <instance>${basedir}/target/server0</instance>
                      <configuration>${basedir}/target/classes/activemq/server0</configuration>
+                     <!-- this makes it easier in certain envs -->
+                     <javaOptions>-Djava.net.preferIPv4Stack=true</javaOptions>
                   </configuration>
                </execution>
                <execution>
@@ -75,6 +77,8 @@ under the License.
                      <ignore>${noServer}</ignore>
                      <instance>${basedir}/target/server1</instance>
                      <configuration>${basedir}/target/classes/activemq/server1</configuration>
+                     <!-- this makes it easier in certain envs -->
+                     <javaOptions>-Djava.net.preferIPv4Stack=true</javaOptions>
                   </configuration>
                </execution>
                <execution>
@@ -86,6 +90,8 @@ under the License.
                      <ignore>${noServer}</ignore>
                      <instance>${basedir}/target/server2</instance>
                      <configuration>${basedir}/target/classes/activemq/server2</configuration>
+                     <!-- this makes it easier in certain envs -->
+                     <javaOptions>-Djava.net.preferIPv4Stack=true</javaOptions>
                   </configuration>
                </execution>
                <execution>
diff --git a/examples/features/clustered/clustered-static-oneway/pom.xml b/examples/features/clustered/clustered-static-oneway/pom.xml
index 18a303cfb5..a787b0a189 100644
--- a/examples/features/clustered/clustered-static-oneway/pom.xml
+++ b/examples/features/clustered/clustered-static-oneway/pom.xml
@@ -64,6 +64,8 @@ under the License.
                      <ignore>${noServer}</ignore>
                      <instance>${basedir}/target/server0</instance>
                      <configuration>${basedir}/target/classes/activemq/server0</configuration>
+                     <!-- this makes it easier in certain envs -->
+                     <javaOptions>-Djava.net.preferIPv4Stack=true</javaOptions>
                   </configuration>
                </execution>
                <execution>
@@ -75,6 +77,8 @@ under the License.
                      <ignore>${noServer}</ignore>
                      <instance>${basedir}/target/server1</instance>
                      <configuration>${basedir}/target/classes/activemq/server1</configuration>
+                     <!-- this makes it easier in certain envs -->
+                     <javaOptions>-Djava.net.preferIPv4Stack=true</javaOptions>
                   </configuration>
                </execution>
                <execution>
@@ -86,6 +90,8 @@ under the License.
                      <ignore>${noServer}</ignore>
                      <instance>${basedir}/target/server2</instance>
                      <configuration>${basedir}/target/classes/activemq/server2</configuration>
+                     <!-- this makes it easier in certain envs -->
+                     <javaOptions>-Djava.net.preferIPv4Stack=true</javaOptions>
                   </configuration>
                </execution>
                <execution>
diff --git a/examples/features/clustered/clustered-topic/pom.xml b/examples/features/clustered/clustered-topic/pom.xml
index bff7c70b3e..e2bc358209 100644
--- a/examples/features/clustered/clustered-topic/pom.xml
+++ b/examples/features/clustered/clustered-topic/pom.xml
@@ -59,6 +59,8 @@ under the License.
                      <ignore>${noServer}</ignore>
                      <instance>${basedir}/target/server0</instance>
                      <configuration>${basedir}/target/classes/activemq/server0</configuration>
+                     <!-- this makes it easier in certain envs -->
+                     <javaOptions>-Djava.net.preferIPv4Stack=true</javaOptions>
                   </configuration>
                </execution>
                <execution>
@@ -70,6 +72,8 @@ under the License.
                      <ignore>${noServer}</ignore>
                      <instance>${basedir}/target/server1</instance>
                      <configuration>${basedir}/target/classes/activemq/server1</configuration>
+                     <!-- this makes it easier in certain envs -->
+                     <javaOptions>-Djava.net.preferIPv4Stack=true</javaOptions>
                   </configuration>
                </execution>
                <execution>
diff --git a/examples/features/clustered/queue-message-redistribution/pom.xml b/examples/features/clustered/queue-message-redistribution/pom.xml
index 4816ad0e98..4f01f073e3 100644
--- a/examples/features/clustered/queue-message-redistribution/pom.xml
+++ b/examples/features/clustered/queue-message-redistribution/pom.xml
@@ -59,6 +59,8 @@ under the License.
                      <ignore>${noServer}</ignore>
                      <instance>${basedir}/target/server0</instance>
                      <configuration>${basedir}/target/classes/activemq/server0</configuration>
+                     <!-- this makes it easier in certain envs -->
+                     <javaOptions>-Djava.net.preferIPv4Stack=true</javaOptions>
                   </configuration>
                </execution>
                <execution>
@@ -70,6 +72,8 @@ under the License.
                      <ignore>${noServer}</ignore>
                      <instance>${basedir}/target/server1</instance>
                      <configuration>${basedir}/target/classes/activemq/server1</configuration>
+                     <!-- this makes it easier in certain envs -->
+                     <javaOptions>-Djava.net.preferIPv4Stack=true</javaOptions>
                   </configuration>
                </execution>
                <execution>
diff --git a/examples/features/clustered/symmetric-cluster/pom.xml b/examples/features/clustered/symmetric-cluster/pom.xml
index 5be9c1de77..e0b8c20e36 100644
--- a/examples/features/clustered/symmetric-cluster/pom.xml
+++ b/examples/features/clustered/symmetric-cluster/pom.xml
@@ -59,7 +59,7 @@ under the License.
                      <ignore>${noSever}</ignore>
                      <instance>${basedir}/target/server0</instance>
                      <configuration>${basedir}/target/classes/activemq/server0</configuration>
-                     <javaOptions>-Dudp-address=${udp-address}</javaOptions>
+                     <javaOptions>-Dudp-address=${udp-address} -Djava.net.preferIPv4Stack=true</javaOptions>
                   </configuration>
                </execution>
                <execution>
@@ -71,7 +71,7 @@ under the License.
                      <ignore>${noSever}</ignore>
                      <instance>${basedir}/target/server1</instance>
                      <configuration>${basedir}/target/classes/activemq/server1</configuration>
-                     <javaOptions>-Dudp-address=${udp-address}</javaOptions>
+                     <javaOptions>-Dudp-address=${udp-address} -Djava.net.preferIPv4Stack=true</javaOptions>
                   </configuration>
                </execution>
                <execution>
@@ -83,7 +83,7 @@ under the License.
                      <ignore>${noSever}</ignore>
                      <instance>${basedir}/target/server2</instance>
                      <configuration>${basedir}/target/classes/activemq/server2</configuration>
-                     <javaOptions>-Dudp-address=${udp-address}</javaOptions>
+                     <javaOptions>-Dudp-address=${udp-address} -Djava.net.preferIPv4Stack=true</javaOptions>
                   </configuration>
                </execution>
                <execution>
@@ -95,7 +95,7 @@ under the License.
                      <ignore>${noSever}</ignore>
                      <instance>${basedir}/target/server3</instance>
                      <configuration>${basedir}/target/classes/activemq/server3</configuration>
-                     <javaOptions>-Dudp-address=${udp-address}</javaOptions>
+                     <javaOptions>-Dudp-address=${udp-address} -Djava.net.preferIPv4Stack=true</javaOptions>
                   </configuration>
                </execution>
                <execution>
@@ -107,7 +107,7 @@ under the License.
                      <ignore>${noSever}</ignore>
                      <instance>${basedir}/target/server4</instance>
                      <configuration>${basedir}/target/classes/activemq/server4</configuration>
-                     <javaOptions>-Dudp-address=${udp-address}</javaOptions>
+                     <javaOptions>-Dudp-address=${udp-address} -Djava.net.preferIPv4Stack=true</javaOptions>
                   </configuration>
                </execution>
                <execution>
@@ -119,7 +119,7 @@ under the License.
                      <ignore>${noSever}</ignore>
                      <instance>${basedir}/target/server5</instance>
                      <configuration>${basedir}/target/classes/activemq/server5</configuration>
-                     <javaOptions>-Dudp-address=${udp-address}</javaOptions>
+                     <javaOptions>-Dudp-address=${udp-address} -Djava.net.preferIPv4Stack=true</javaOptions>
                   </configuration>
                </execution>
                <execution>