diff --git a/pregelix-api/pom.xml b/pregelix-api/pom.xml
index fe98b92..8212e1c 100644
--- a/pregelix-api/pom.xml
+++ b/pregelix-api/pom.xml
@@ -23,6 +23,7 @@
 				<configuration>
 					<source>1.7</source>
 					<target>1.7</target>
+					<fork>true</fork>
 				</configuration>
 			</plugin>
 			<plugin>
diff --git a/pregelix-core/pom.xml b/pregelix-core/pom.xml
index ab163cb..5238068 100644
--- a/pregelix-core/pom.xml
+++ b/pregelix-core/pom.xml
@@ -67,6 +67,7 @@
 				<configuration>
 					<source>1.7</source>
 					<target>1.7</target>
+					<fork>true</fork>
 				</configuration>
 			</plugin>
 			<plugin>
diff --git a/pregelix-dataflow-std-base/pom.xml b/pregelix-dataflow-std-base/pom.xml
index d12f4be..caa3222 100644
--- a/pregelix-dataflow-std-base/pom.xml
+++ b/pregelix-dataflow-std-base/pom.xml
@@ -24,6 +24,7 @@
 				<configuration>
 					<source>1.7</source>
 					<target>1.7</target>
+					<fork>true</fork>
 				</configuration>
 			</plugin>
 			<plugin>
diff --git a/pregelix-dataflow-std/pom.xml b/pregelix-dataflow-std/pom.xml
index f4dadc6..c5a0913 100644
--- a/pregelix-dataflow-std/pom.xml
+++ b/pregelix-dataflow-std/pom.xml
@@ -25,6 +25,7 @@
 				<configuration>
 					<source>1.7</source>
 					<target>1.7</target>
+					<fork>true</fork>
 				</configuration>
 			</plugin>
 			<plugin>
diff --git a/pregelix-dataflow/pom.xml b/pregelix-dataflow/pom.xml
index c4ed479..d3f396e 100644
--- a/pregelix-dataflow/pom.xml
+++ b/pregelix-dataflow/pom.xml
@@ -25,6 +25,7 @@
 				<configuration>
 					<source>1.7</source>
 					<target>1.7</target>
+					<fork>true</fork>
 				</configuration>
 			</plugin>
 			<plugin>
diff --git a/pregelix-example/pom.xml b/pregelix-example/pom.xml
index 01c0d77..b3f78e1 100644
--- a/pregelix-example/pom.xml
+++ b/pregelix-example/pom.xml
@@ -19,6 +19,7 @@
 				<configuration>
 					<source>1.7</source>
 					<target>1.7</target>
+					<fork>true</fork>
 				</configuration>
 			</plugin>
 			<plugin>
diff --git a/pregelix-runtime/pom.xml b/pregelix-runtime/pom.xml
index e352cf4..e75f98b 100644
--- a/pregelix-runtime/pom.xml
+++ b/pregelix-runtime/pom.xml
@@ -24,6 +24,7 @@
 				<configuration>
 					<source>1.7</source>
 					<target>1.7</target>
+					<fork>true</fork>
 				</configuration>
 			</plugin>
 			<plugin>