--- a/langtools/src/jdk.compiler/share/classes/com/sun/tools/javac/jvm/ClassReader.java	Tue Mar 07 18:57:19 2017 -0800
+++ b/langtools/src/jdk.compiler/share/classes/com/sun/tools/javac/jvm/ClassReader.java	Wed Mar 08 13:17:07 2017 +0530
@@ -2354,7 +2354,7 @@
                 (flags & ABSTRACT) == 0 && !name.equals(names.clinit)) {
             if (majorVersion > Version.V52.major ||
                     (majorVersion == Version.V52.major && minorVersion >= Version.V52.minor)) {
-                if ((flags & STATIC) == 0) {
+                if ((flags & (STATIC | PRIVATE)) == 0) {
                     currentOwner.flags_field |= DEFAULT;
                     flags |= DEFAULT | ABSTRACT;
                 }

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/langtools/test/tools/javac/defaultMethods/private/PrivateInterfaceMethodProcessorTest.java	Wed Mar 08 13:17:07 2017 +0530
@@ -0,0 +1,58 @@
+/*
+ * Copyright (c) 2017, 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.
+ */
+
+/*
+ * @test
+ * @bug 8175184
+ * @summary Annotation processor observes interface private methods as default methods
+ * @library /tools/javac/lib
+ * @modules java.compiler
+ *          jdk.compiler
+ * @build   JavacTestingAbstractProcessor PrivateInterfaceMethodProcessorTest
+ * @compile/process -processor PrivateInterfaceMethodProcessorTest -proc:only PrivateInterfaceMethodProcessorTest_I
+ */
+
+import java.util.Set;
+import javax.annotation.processing.*;
+import javax.lang.model.element.*;
+import static javax.lang.model.util.ElementFilter.*;
+
+interface PrivateInterfaceMethodProcessorTest_I {
+    private void foo() {}
+}
+
+public class PrivateInterfaceMethodProcessorTest extends JavacTestingAbstractProcessor {
+    public boolean process(Set<? extends TypeElement> annotations,
+                           RoundEnvironment roundEnv) {
+        if (!roundEnv.processingOver()) {
+            for (Element element : roundEnv.getRootElements()) {
+                for (ExecutableElement method : methodsIn(element.getEnclosedElements())) {
+                    if (method.isDefault()) {
+                        throw new AssertionError("Unexpected default method seen");
+                    }
+                }
+            }
+        }
+        return true;
+    }
+}
\ No newline at end of file