diff --git a/yang-lsp/io.typefox.yang.diagram/.settings/org.eclipse.core.resources.prefs b/yang-lsp/io.typefox.yang.diagram/.settings/org.eclipse.core.resources.prefs
new file mode 100644
index 00000000..99f26c02
--- /dev/null
+++ b/yang-lsp/io.typefox.yang.diagram/.settings/org.eclipse.core.resources.prefs
@@ -0,0 +1,2 @@
+eclipse.preferences.version=1
+encoding/<project>=UTF-8
diff --git a/yang-lsp/io.typefox.yang/src/main/java/io/typefox/yang/processor/YangProcessor.java b/yang-lsp/io.typefox.yang/src/main/java/io/typefox/yang/processor/YangProcessor.java
index 26360a80..bd8bde82 100644
--- a/yang-lsp/io.typefox.yang/src/main/java/io/typefox/yang/processor/YangProcessor.java
+++ b/yang-lsp/io.typefox.yang/src/main/java/io/typefox/yang/processor/YangProcessor.java
@@ -166,9 +166,9 @@ private void processChildren(Statement statement, HasStatements parent, FeatureE
 				child = new ElementData((SchemaNode) ele, ElementKind.Grouping);
 			} else if (ele instanceof Uses) {
 				/*
-				 * The effect of a “uses” reference to a grouping is that the nodes defined by
+				 * The effect of a "uses" reference to a grouping is that the nodes defined by
 				 * the grouping are copied into the current schema tree and are then updated
-				 * according to the “refine” and “augment” statements.
+				 * according to the "refine" and "augment" statements.
 				 */
 				GroupingRef groupingRef = ((Uses) ele).getGrouping();
 				Grouping grouping = groupingRef.getNode();
diff --git a/yang-lsp/io.typefox.yang/src/test/java/io/typefox/yang/tests/serializer/Bug224Test.xtend b/yang-lsp/io.typefox.yang/src/test/java/io/typefox/yang/tests/serializer/Bug224Test.xtend
index de23c5b3..661ba99d 100644
--- a/yang-lsp/io.typefox.yang/src/test/java/io/typefox/yang/tests/serializer/Bug224Test.xtend
+++ b/yang-lsp/io.typefox.yang/src/test/java/io/typefox/yang/tests/serializer/Bug224Test.xtend
@@ -8,6 +8,7 @@ import org.eclipse.xtext.resource.SaveOptions
 import org.eclipse.xtext.resource.XtextResource
 import org.eclipse.xtext.util.EmfFormatter
 import org.junit.Test
+import static extension org.eclipse.xtext.util.Strings.toPlatformLineSeparator
 
 import static org.junit.Assert.assertEquals
 
@@ -101,7 +102,7 @@ class Bug224Test extends AbstractYangTest {
 		    }
 		}'''
 		assertEquals(expectedResolvedPath,
-			EmfFormatter.objToStr((augmentsLeafType.substatements.head as Path).reference))
+			EmfFormatter.objToStr((augmentsLeafType.substatements.head as Path).reference).toPlatformLineSeparator)
 
 		val serializer = (sub2Res as XtextResource).getSerializer();
 		val result = serializer.serialize(submodule2, SaveOptions.newBuilder().format().getOptions())
diff --git a/yang-lsp/io.typefox.yang/src/test/java/io/typefox/yang/tests/serializer/Bug225Test.xtend b/yang-lsp/io.typefox.yang/src/test/java/io/typefox/yang/tests/serializer/Bug225Test.xtend
index bc0dd702..d48f0a7b 100644
--- a/yang-lsp/io.typefox.yang/src/test/java/io/typefox/yang/tests/serializer/Bug225Test.xtend
+++ b/yang-lsp/io.typefox.yang/src/test/java/io/typefox/yang/tests/serializer/Bug225Test.xtend
@@ -8,7 +8,7 @@ import org.eclipse.xtext.resource.SaveOptions
 import org.eclipse.xtext.resource.XtextResource
 import org.eclipse.xtext.util.EmfFormatter
 import org.junit.Test
-
+import static extension org.eclipse.xtext.util.Strings.toPlatformLineSeparator
 import static org.junit.Assert.assertEquals
 
 class Bug225Test extends AbstractYangTest {
@@ -129,7 +129,7 @@ class Bug225Test extends AbstractYangTest {
 		    }
 		}'''
 		assertEquals(expectedResolvedPath,
-			EmfFormatter.objToStr((augmentsLeafType.substatements.head as Path).reference))
+			EmfFormatter.objToStr((augmentsLeafType.substatements.head as Path).reference).toPlatformLineSeparator)
 
 		val result = serializer.serialize(submodule2, SaveOptions.newBuilder().format().getOptions())
 		assertEquals('''
diff --git a/yang-lsp/io.typefox.yang/src/test/java/io/typefox/yang/tests/serializer/SerializationTest.xtend b/yang-lsp/io.typefox.yang/src/test/java/io/typefox/yang/tests/serializer/SerializationTest.xtend
index 14beace6..349accd1 100644
--- a/yang-lsp/io.typefox.yang/src/test/java/io/typefox/yang/tests/serializer/SerializationTest.xtend
+++ b/yang-lsp/io.typefox.yang/src/test/java/io/typefox/yang/tests/serializer/SerializationTest.xtend
@@ -4,7 +4,6 @@ import io.typefox.yang.tests.AbstractYangTest
 import io.typefox.yang.yang.Contact
 import io.typefox.yang.yang.Container
 import io.typefox.yang.yang.Description
-import io.typefox.yang.yang.Grouping
 import io.typefox.yang.yang.KeyReference
 import io.typefox.yang.yang.Leaf
 import io.typefox.yang.yang.List
@@ -414,7 +413,7 @@ class SerializationTest extends AbstractYangTest {
 		resource.assertNoErrors()
 		val module = resource.contents.head as Module
 		val uses = module.substatements.get(4).substatements.get(2).substatements.get(1) as Uses
-		assertTrue(uses.grouping.node instanceof Grouping)
+		assertNotNull(uses.grouping.node)
 		assertFalse((uses.grouping.node as InternalEObject).eIsProxy)
 		
 		val serialized = resource.serializer.serialize(resource.contents.head)