diff --git a/org.eclipse.xtend.core.tests/src/org/eclipse/xtend/core/tests/validation/ValidationBug435020Test.xtend b/org.eclipse.xtend.core.tests/src/org/eclipse/xtend/core/tests/validation/ValidationBug435020Test.xtend
index 71775e544be..198bc87de0c 100644
--- a/org.eclipse.xtend.core.tests/src/org/eclipse/xtend/core/tests/validation/ValidationBug435020Test.xtend
+++ b/org.eclipse.xtend.core.tests/src/org/eclipse/xtend/core/tests/validation/ValidationBug435020Test.xtend
@@ -42,7 +42,7 @@ class ValidationBug435020Test extends AbstractXtendTestCase {
 	}
 	
 	@Test def void test_02() {
-		val c = parser.parse('''
+		val source = '''
 			class Foo {
 				def void foo() {
 					new Object {
@@ -50,12 +50,16 @@ class ValidationBug435020Test extends AbstractXtendTestCase {
 					}
 				}
 			}
-		''')
-		c.assertError(XtendPackage.Literals.XTEND_FIELD, IssueCodes.ANONYMOUS_CLASS_STATIC_FIELD)
+		'''
+		val c = parser.parse(source)
+		c.assertError(XtendPackage.Literals.XTEND_FIELD, IssueCodes.ANONYMOUS_CLASS_STATIC_FIELD,
+			source.indexOf("static"), "static".length,
+			"A static field of an anonymous class must be final"
+		)
 	}
 	
 	@Test def void test_03() {
-		val c = parser.parse('''
+		val source = '''
 			class Foo {
 				def void foo() {
 					new Object {
@@ -63,12 +67,16 @@ class ValidationBug435020Test extends AbstractXtendTestCase {
 					}
 				}
 			}
-		''')
-		c.assertError(XtendPackage.Literals.XTEND_FIELD, IssueCodes.ANONYMOUS_CLASS_STATIC_FIELD)
+		'''
+		val c = parser.parse(source)
+		c.assertError(XtendPackage.Literals.XTEND_FIELD, IssueCodes.ANONYMOUS_CLASS_STATIC_FIELD,
+			source.indexOf("Math.max(1, 2)"), "Math.max(1, 2)".length,
+			"must be initialized with a constant expression"
+		)
 	}
 	
 	@Test def void test_04() {
-		val c = parser.parse('''
+		val source = '''
 			class Foo {
 				def void foo() {
 					new Object {
@@ -77,8 +85,12 @@ class ValidationBug435020Test extends AbstractXtendTestCase {
 					}
 				}
 			}
-		''')
-		c.assertError(XtendPackage.Literals.XTEND_FUNCTION, IssueCodes.ANONYMOUS_CLASS_STATIC_METHOD)
+		'''
+		val c = parser.parse(source)
+		c.assertError(XtendPackage.Literals.XTEND_FUNCTION, IssueCodes.ANONYMOUS_CLASS_STATIC_METHOD,
+			source.indexOf("static"), "static".length,
+			"A method of an anonymous class cannot be static"
+		)
 	}
 	
 }
\ No newline at end of file
diff --git a/org.eclipse.xtend.core.tests/xtend-gen/org/eclipse/xtend/core/tests/validation/ValidationBug435020Test.java b/org.eclipse.xtend.core.tests/xtend-gen/org/eclipse/xtend/core/tests/validation/ValidationBug435020Test.java
index daedd3de1cc..9051b87f11a 100644
--- a/org.eclipse.xtend.core.tests/xtend-gen/org/eclipse/xtend/core/tests/validation/ValidationBug435020Test.java
+++ b/org.eclipse.xtend.core.tests/xtend-gen/org/eclipse/xtend/core/tests/validation/ValidationBug435020Test.java
@@ -94,8 +94,11 @@ public void test_02() {
       _builder.newLine();
       _builder.append("}");
       _builder.newLine();
-      final XtendFile c = this.parser.parse(_builder);
-      this.helper.assertError(c, XtendPackage.Literals.XTEND_FIELD, IssueCodes.ANONYMOUS_CLASS_STATIC_FIELD);
+      final String source = _builder.toString();
+      final XtendFile c = this.parser.parse(source);
+      this.helper.assertError(c, XtendPackage.Literals.XTEND_FIELD, IssueCodes.ANONYMOUS_CLASS_STATIC_FIELD, 
+        source.indexOf("static"), "static".length(), 
+        "A static field of an anonymous class must be final");
     } catch (Throwable _e) {
       throw Exceptions.sneakyThrow(_e);
     }
@@ -124,8 +127,11 @@ public void test_03() {
       _builder.newLine();
       _builder.append("}");
       _builder.newLine();
-      final XtendFile c = this.parser.parse(_builder);
-      this.helper.assertError(c, XtendPackage.Literals.XTEND_FIELD, IssueCodes.ANONYMOUS_CLASS_STATIC_FIELD);
+      final String source = _builder.toString();
+      final XtendFile c = this.parser.parse(source);
+      this.helper.assertError(c, XtendPackage.Literals.XTEND_FIELD, IssueCodes.ANONYMOUS_CLASS_STATIC_FIELD, 
+        source.indexOf("Math.max(1, 2)"), "Math.max(1, 2)".length(), 
+        "must be initialized with a constant expression");
     } catch (Throwable _e) {
       throw Exceptions.sneakyThrow(_e);
     }
@@ -157,8 +163,11 @@ public void test_04() {
       _builder.newLine();
       _builder.append("}");
       _builder.newLine();
-      final XtendFile c = this.parser.parse(_builder);
-      this.helper.assertError(c, XtendPackage.Literals.XTEND_FUNCTION, IssueCodes.ANONYMOUS_CLASS_STATIC_METHOD);
+      final String source = _builder.toString();
+      final XtendFile c = this.parser.parse(source);
+      this.helper.assertError(c, XtendPackage.Literals.XTEND_FUNCTION, IssueCodes.ANONYMOUS_CLASS_STATIC_METHOD, 
+        source.indexOf("static"), "static".length(), 
+        "A method of an anonymous class cannot be static");
     } catch (Throwable _e) {
       throw Exceptions.sneakyThrow(_e);
     }