Don't do parallel unit tests on travis

.travis.yml

@@ -20,6 +20,4 @@ before_script:
 
 script:
 #  - mvn -e -B clean install && cd hapi-fhir-ra && mvn -e -B -DTRAVIS_JOB_ID=$TRAVIS_JOB_ID clean test jacoco:report coveralls:report
-  - mvn -e -B clean install && cd hapi-fhir-jacoco && mvn -e -B -DTRAVIS_JOB_ID=$TRAVIS_JOB_ID jacoco:report coveralls:report 
-
-
+  - mvn -e -B -P ALLMODULES,NOPARALLEL clean install && cd hapi-fhir-jacoco && mvn -e -B -DTRAVIS_JOB_ID=$TRAVIS_JOB_ID jacoco:report coveralls:report 

pom.xml

@@ -1474,7 +1474,6 @@
 						<configuration> <attach>false</attach> <descriptors> <descriptor>${project.basedir}/src/assembly/hapi-fhir-sample-projects.xml</descriptor> </descriptors> </configuration> </execution> </executions> </plugin> -->
 				</plugins>
 			</build>
-
 		</profile>
 		<profile>
 			<id>SIGN_ARTIFACTS</id>
@@ -1569,10 +1568,18 @@
 			</modules>
 		</profile>
 		<profile>
-			<id>COBERTURA</id>
-			<modules>
-				<module>hapi-fhir-cobertura</module>
-			</modules>
+			<id>NOPARALLEL</id>
+			<build>
+				<plugins>
+					<plugin>
+						<groupId>org.apache.maven.plugins</groupId>
+						<artifactId>maven-surefire-plugin</artifactId>
+						<configuration>
+							<forkCount>1</forkCount>
+						</configuration>
+					</plugin>
+				</plugins>
+			</build>
 		</profile>
 	</profiles>