8013179: assertion failure in javac when compiling with -source 1.6 -target 1.6

Reviewed-by: jjg

src/share/classes/com/sun/tools/javac/comp/TransTypes.java

@@ -674,7 +674,11 @@ public class TransTypes extends TreeTranslator {
         if (tree.varargsElement != null)
             tree.varargsElement = types.erasure(tree.varargsElement);
         else
-            Assert.check(tree.args.length() == argtypes.length());
+            if (tree.args.length() != argtypes.length()) {
+                log.error(tree.pos(),
+                              "method.invoked.with.incorrect.number.arguments",
+                              tree.args.length(), argtypes.length());
+            }
         tree.args = translateArgs(tree.args, argtypes, tree.varargsElement);
 
         tree.type = types.erasure(tree.type);

src/share/classes/com/sun/tools/javac/resources/compiler.properties

@@ -918,6 +918,10 @@ compiler.err.signature.doesnt.match.supertype=\
 compiler.err.signature.doesnt.match.intf=\
     signature does not match {0}; incompatible interfaces
 
+# 0: number, 1: number
+compiler.err.method.invoked.with.incorrect.number.arguments=\
+    method invoked with incorrect number of arguments; expected {0}, found {1}
+
 # 0: symbol, 1: symbol, 2: symbol
 compiler.err.does.not.override.abstract=\
     {0} is not abstract and does not override abstract method {1} in {2}

test/tools/javac/diags/examples/MethodInvokedWithWrongNumberOfArgs.java

+/*
+ * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+// key: compiler.err.method.invoked.with.incorrect.number.arguments
+// options: -Xlint:-options -source 6 -target 6
+
+class MethodInvokedWithWrongNumberOfArgs {
+    static java.lang.invoke.MethodHandle getNamedMember;
+    public static Object getMember(String name, Object rec) throws Throwable {
+        return getNamedMember.invoke(rec, name);
+    }
+}