diff --git a/pom.xml b/pom.xml
index 7417cea..1364510 100644
--- a/pom.xml
+++ b/pom.xml
@@ -182,7 +182,10 @@
 				<artifactId>maven-surefire-plugin</artifactId>
 				<version>2.22.1</version>
 				<configuration>
-          <useSystemClassLoader>false</useSystemClassLoader>
+                    <useSystemClassLoader>false</useSystemClassLoader>
+					<excludes>
+						<exclude>**/OPINTest.java</exclude>
+					</excludes>
 				</configuration>
 			</plugin>
 			<plugin>
@@ -196,6 +199,7 @@
 					<compilerVersion>2.0</compilerVersion>
 					<source>${java.version}</source>
 					<target>${java.version}</target>
+					<argLine>-Xms512m</argLine>
 				</configuration>
 			</plugin>
 			<!-- <plugin>