diff --git a/pregelix/pregelix-api/pom.xml b/pregelix/pregelix-api/pom.xml
index 0643804..2d1659d 100644
--- a/pregelix/pregelix-api/pom.xml
+++ b/pregelix/pregelix-api/pom.xml
@@ -23,6 +23,7 @@
 				<configuration>
 					<source>1.6</source>
 					<target>1.6</target>
+					<fork>true</fork>
 				</configuration>
 			</plugin>
 			<plugin>
diff --git a/pregelix/pregelix-core/pom.xml b/pregelix/pregelix-core/pom.xml
index 0908829..57ae85e 100644
--- a/pregelix/pregelix-core/pom.xml
+++ b/pregelix/pregelix-core/pom.xml
@@ -67,6 +67,7 @@
 				<configuration>
 					<source>1.6</source>
 					<target>1.6</target>
+					<fork>true</fork>
 				</configuration>
 			</plugin>
 			<plugin>
diff --git a/pregelix/pregelix-dataflow-std-base/pom.xml b/pregelix/pregelix-dataflow-std-base/pom.xml
index 05a1508..63fb33e 100644
--- a/pregelix/pregelix-dataflow-std-base/pom.xml
+++ b/pregelix/pregelix-dataflow-std-base/pom.xml
@@ -24,6 +24,7 @@
 				<configuration>
 					<source>1.6</source>
 					<target>1.6</target>
+					<fork>true</fork>
 				</configuration>
 			</plugin>
 			<plugin>
diff --git a/pregelix/pregelix-dataflow-std/pom.xml b/pregelix/pregelix-dataflow-std/pom.xml
index 3f3ba00..9815cd1 100644
--- a/pregelix/pregelix-dataflow-std/pom.xml
+++ b/pregelix/pregelix-dataflow-std/pom.xml
@@ -25,6 +25,7 @@
 				<configuration>
 					<source>1.6</source>
 					<target>1.6</target>
+					<fork>true</fork>
 				</configuration>
 			</plugin>
 			<plugin>
diff --git a/pregelix/pregelix-dataflow/pom.xml b/pregelix/pregelix-dataflow/pom.xml
index 107f059..4de8290 100644
--- a/pregelix/pregelix-dataflow/pom.xml
+++ b/pregelix/pregelix-dataflow/pom.xml
@@ -25,6 +25,7 @@
 				<configuration>
 					<source>1.6</source>
 					<target>1.6</target>
+					<fork>true</fork>
 				</configuration>
 			</plugin>
 			<plugin>
diff --git a/pregelix/pregelix-example/pom.xml b/pregelix/pregelix-example/pom.xml
index ce8f985..e8e04a1 100644
--- a/pregelix/pregelix-example/pom.xml
+++ b/pregelix/pregelix-example/pom.xml
@@ -19,6 +19,7 @@
 				<configuration>
 					<source>1.6</source>
 					<target>1.6</target>
+					<fork>true</fork>
 				</configuration>
 			</plugin>
 			<plugin>
diff --git a/pregelix/pregelix-runtime/pom.xml b/pregelix/pregelix-runtime/pom.xml
index 82be6b9..22219e5 100644
--- a/pregelix/pregelix-runtime/pom.xml
+++ b/pregelix/pregelix-runtime/pom.xml
@@ -24,6 +24,7 @@
 				<configuration>
 					<source>1.6</source>
 					<target>1.6</target>
+					<fork>true</fork>
 				</configuration>
 			</plugin>
 			<plugin>