--- a/langtools/src/share/classes/com/sun/tools/javac/comp/Attr.java	Thu Aug 05 09:44:54 2010 +0100
+++ b/langtools/src/share/classes/com/sun/tools/javac/comp/Attr.java	Thu Aug 05 09:45:25 2010 +0100
@@ -1594,13 +1594,15 @@
                 localEnv.info.varArgs = false;
                 tree.constructor = rs.resolveConstructor(
                     tree.pos(), localEnv, clazztype, argtypes, typeargtypes);
-                tree.constructorType = checkMethod(clazztype,
-                                                tree.constructor,
-                                                localEnv,
-                                                tree.args,
-                                                argtypes,
-                                                typeargtypes,
-                                                localEnv.info.varArgs);
+                tree.constructorType = tree.constructor.type.isErroneous() ?
+                    syms.errType :
+                    checkMethod(clazztype,
+                        tree.constructor,
+                        localEnv,
+                        tree.args,
+                        argtypes,
+                        typeargtypes,
+                        localEnv.info.varArgs);
                 if (localEnv.info.varArgs)
                     assert tree.constructorType.isErroneous() || tree.varargsElement != null;
             }

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/langtools/test/tools/javac/6857948/T6857948.java	Thu Aug 05 09:45:25 2010 +0100
@@ -0,0 +1,18 @@
+/*
+ * @test /nodynamiccopyright/
+ * @bug 6857948
+ * @summary 6857948: Calling a constructor with a doubly bogus argument causes an internal error
+ * @author Maurizio Cimadamore
+ *
+ * @compile/fail/ref=T6857948.out -XDrawDiagnostics T6857948.java
+ */
+
+class Foo {
+   Foo(String v) {}
+};
+
+class Test {
+   public static void main() {
+      Foo f = new Foo("Hello!",nosuchfunction()) {};
+   }
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/langtools/test/tools/javac/6857948/T6857948.out	Thu Aug 05 09:45:25 2010 +0100
@@ -0,0 +1,3 @@
+T6857948.java:16:32: compiler.err.cant.resolve.location.args: kindname.method, nosuchfunction, , , kindname.class, Test
+T6857948.java:16:50: compiler.err.cant.apply.symbol: kindname.constructor, Foo, java.lang.String, compiler.misc.no.args, kindname.class, Foo, null
+2 errors