8012723: strictfp interface misses strictfp modifer on default method

Reviewed-by: mcimadamore

langtools/src/share/classes/com/sun/tools/javac/comp/Check.java

@@ -1078,7 +1078,8 @@ public class Check {
                 mask = MethodFlags;
             }
             // Imply STRICTFP if owner has STRICTFP set.
-            if (((flags|implicit) & Flags.ABSTRACT) == 0)
+            if (((flags|implicit) & Flags.ABSTRACT) == 0 ||
+                ((flags) & Flags.DEFAULT) != 0)
                 implicit |= sym.owner.flags_field & STRICTFP;
             break;
         case TYP:

langtools/test/tools/javac/defaultMethods/CheckACC_STRICTFlagOnDefaultMethodTest.java

@@ -0,0 +1,96 @@
+/*
+ * 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.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * 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 8012723
+ * @summary strictfp interface misses strictfp modifer on default method
+ * @run main CheckACC_STRICTFlagOnDefaultMethodTest
+ */
+
+import java.util.ArrayList;
+import java.util.List;
+import java.io.File;
+import java.io.IOException;
+
+import com.sun.tools.classfile.ClassFile;
+import com.sun.tools.classfile.ConstantPoolException;
+import com.sun.tools.classfile.Descriptor;
+import com.sun.tools.classfile.Descriptor.InvalidDescriptor;
+import com.sun.tools.classfile.Method;
+
+import static com.sun.tools.classfile.AccessFlags.ACC_STRICT;
+
+public class CheckACC_STRICTFlagOnDefaultMethodTest {
+    private static final String AssertionErrorMessage =
+        "All methods should have the ACC_STRICT access flag " +
+        "please check output";
+    private static final String offendingMethodErrorMessage =
+        "Method %s of class %s doesn't have the ACC_STRICT access flag";
+
+    private List<String> errors = new ArrayList<>();
+
+    public static void main(String[] args)
+            throws IOException, ConstantPoolException, InvalidDescriptor {
+        new CheckACC_STRICTFlagOnDefaultMethodTest().run();
+    }
+
+    private void run()
+            throws IOException, ConstantPoolException, InvalidDescriptor {
+        String testClasses = System.getProperty("test.classes");
+        check(testClasses,
+                "CheckACC_STRICTFlagOnDefaultMethodTest$StrictfpInterface.class");
+        if (errors.size() > 0) {
+            for (String error: errors) {
+                System.err.println(error);
+            }
+            throw new AssertionError(AssertionErrorMessage);
+        }
+    }
+
+    void check(String dir, String... fileNames)
+        throws
+            IOException,
+            ConstantPoolException,
+            Descriptor.InvalidDescriptor {
+        for (String fileName : fileNames) {
+            ClassFile classFileToCheck = ClassFile.read(new File(dir, fileName));
+
+            for (Method method : classFileToCheck.methods) {
+                if ((method.access_flags.flags & ACC_STRICT) == 0) {
+                    errors.add(String.format(offendingMethodErrorMessage,
+                            method.getName(classFileToCheck.constant_pool),
+                            classFileToCheck.getName()));
+                }
+            }
+        }
+    }
+
+    strictfp interface StrictfpInterface {
+        default void default_interface_method() {}
+        static void static_interface_method() {}
+    }
+
+}