--- a/langtools/src/jdk.compiler/share/classes/com/sun/tools/javac/code/Symbol.java	Fri Dec 16 12:08:46 2016 +0100
+++ b/langtools/src/jdk.compiler/share/classes/com/sun/tools/javac/code/Symbol.java	Fri Dec 16 15:27:34 2016 +0000
@@ -1549,11 +1549,7 @@
                                       final Attr attr,
                                       final JCVariableDecl variable)
         {
-            setData(new Callable<Object>() {
-                public Object call() {
-                    return attr.attribLazyConstantValue(env, variable, type);
-                }
-            });
+            setData((Callable<Object>)() -> attr.attribLazyConstantValue(env, variable, type));
         }
 
         /**
@@ -1856,12 +1852,8 @@
             return implementation(origin, types, checkResult, implementation_filter);
         }
         // where
-            public static final Filter<Symbol> implementation_filter = new Filter<Symbol>() {
-                public boolean accepts(Symbol s) {
-                    return s.kind == MTH &&
-                            (s.flags() & SYNTHETIC) == 0;
-                }
-            };
+            public static final Filter<Symbol> implementation_filter = s ->
+                    s.kind == MTH && (s.flags() & SYNTHETIC) == 0;
 
         public MethodSymbol implementation(TypeSymbol origin, Types types, boolean checkResult, Filter<Symbol> implFilter) {
             MethodSymbol res = types.implementation(this, origin, checkResult, implFilter);