[UIMA-5853] Java version for integration tests should match main target version

- Set the target level for integration tests to 1.7
diff --git a/uimafit-maven-plugin/src/it/default/pom.xml b/uimafit-maven-plugin/src/it/default/pom.xml
index e951989..fd396ac 100644
--- a/uimafit-maven-plugin/src/it/default/pom.xml
+++ b/uimafit-maven-plugin/src/it/default/pom.xml
@@ -29,6 +29,8 @@
 	<name>Test for default configuration</name>
 
 	<properties>
+    <maven.compiler.source>1.7</maven.compiler.source>
+    <maven.compiler.target>1.7</maven.compiler.target>
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 	</properties>
 
diff --git a/uimafit-maven-plugin/src/it/with-typesystem-in-descriptors/pom.xml b/uimafit-maven-plugin/src/it/with-typesystem-in-descriptors/pom.xml
index 1e4ce74..ad4408d 100644
--- a/uimafit-maven-plugin/src/it/with-typesystem-in-descriptors/pom.xml
+++ b/uimafit-maven-plugin/src/it/with-typesystem-in-descriptors/pom.xml
@@ -29,6 +29,8 @@
   <name>Test for default configuration</name>
 
   <properties>
+    <maven.compiler.source>1.7</maven.compiler.source>
+    <maven.compiler.target>1.7</maven.compiler.target>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
   </properties>