Xtext requires java 8

Change-Id: I1c63443ff057b20308a4a2d2b6db136f3dc4eace
diff --git a/tests/org.eclipse.emf.test.codegen.ecore.xtext/Test EMF Xtext.launch b/tests/org.eclipse.emf.test.codegen.ecore.xtext/Test EMF Xtext.launch
index e43c241..d0febc9 100644
--- a/tests/org.eclipse.emf.test.codegen.ecore.xtext/Test EMF Xtext.launch
+++ b/tests/org.eclipse.emf.test.codegen.ecore.xtext/Test EMF Xtext.launch
@@ -14,6 +14,8 @@
 <booleanAttribute key="org.eclipse.jdt.junit.KEEPRUNNING_ATTR" value="false"/>
 <stringAttribute key="org.eclipse.jdt.junit.TESTNAME" value=""/>
 <stringAttribute key="org.eclipse.jdt.junit.TEST_KIND" value="org.eclipse.jdt.junit.loader.junit4"/>
+<booleanAttribute key="org.eclipse.jdt.launching.ATTR_USE_START_ON_FIRST_THREAD" value="true"/>
+<stringAttribute key="org.eclipse.jdt.launching.JRE_CONTAINER" value="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
 <stringAttribute key="org.eclipse.jdt.launching.MAIN_TYPE" value="org.eclipse.emf.test.codegen.ecore.xtext.GenModelResourceDescriptionManagerTest"/>
 <stringAttribute key="org.eclipse.jdt.launching.PROJECT_ATTR" value="org.eclipse.emf.test.codegen.ecore.xtext"/>
 </launchConfiguration>
diff --git a/tests/org.eclipse.emf.test.ecore.xcore/Test EMF Xcore.launch b/tests/org.eclipse.emf.test.ecore.xcore/Test EMF Xcore.launch
index 3e29750..4c6a239 100644
--- a/tests/org.eclipse.emf.test.ecore.xcore/Test EMF Xcore.launch
+++ b/tests/org.eclipse.emf.test.ecore.xcore/Test EMF Xcore.launch
@@ -15,6 +15,7 @@
 <stringAttribute key="org.eclipse.jdt.junit.TESTNAME" value=""/>
 <stringAttribute key="org.eclipse.jdt.junit.TEST_KIND" value="org.eclipse.jdt.junit.loader.junit4"/>
 <booleanAttribute key="org.eclipse.jdt.launching.ATTR_USE_START_ON_FIRST_THREAD" value="true"/>
+<stringAttribute key="org.eclipse.jdt.launching.JRE_CONTAINER" value="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
 <stringAttribute key="org.eclipse.jdt.launching.MAIN_TYPE" value=""/>
 <stringAttribute key="org.eclipse.jdt.launching.PROJECT_ATTR" value="org.eclipse.emf.test.ecore.xcore"/>
 <stringAttribute key="org.eclipse.jdt.launching.VM_ARGUMENTS" value="-ea -Xmx700m -XX:MaxPermSize=200m"/>