test/hotspot/jtreg/vmTestbase/vm/runtime/defmeth/StaticMethodsTest.java
changeset 50243 4fac3c99487d
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/hotspot/jtreg/vmTestbase/vm/runtime/defmeth/StaticMethodsTest.java	Wed May 23 17:09:49 2018 -0700
@@ -0,0 +1,838 @@
+/*
+ * Copyright (c) 2013, 2018, 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.
+ */
+
+package vm.runtime.defmeth;
+
+import nsk.share.test.TestBase;
+import vm.runtime.defmeth.shared.DefMethTest;
+import vm.runtime.defmeth.shared.annotation.Crash;
+import vm.runtime.defmeth.shared.data.*;
+import vm.runtime.defmeth.shared.builder.TestBuilder;
+import vm.runtime.defmeth.shared.annotation.NotApplicableFor;
+import static vm.runtime.defmeth.shared.data.method.body.CallMethod.Invoke.*;
+import static vm.runtime.defmeth.shared.data.method.body.CallMethod.IndexbyteOp.*;
+import static vm.runtime.defmeth.shared.ExecutionMode.*;
+
+/*
+ * Scenarios on static methods in interfaces.
+ */
+public class StaticMethodsTest extends DefMethTest {
+
+    public static void main(String[] args) {
+        TestBase.runTest(new StaticMethodsTest(), args);
+    }
+
+    // static method in interface
+    /*
+     * testStaticMethod
+     *
+     * interface I {
+     *  default static public int m() { return 1; }
+     * }
+     *
+     * class C implements I {}
+     */
+    public void testStaticMethod() {
+        TestBuilder b = factory.getBuilder();
+
+        Interface I = b.intf("I")
+                .defaultMethod("m", "()I")
+                    .static_().public_().returns(1).build()
+            .build();
+
+        ConcreteClass C = b.clazz("C").implement(I).build();
+
+        b.test().staticCallSite(I, "m", "()I").returns(1).done()
+
+        .run();
+    }
+
+    // invoke[virtual|interface|special] from same/subintf
+    /*
+     * testInvokeVirtual
+     *
+     * interface I {
+     *  default static public int staticM() { return 1; }
+     *  default public int m() { return ((I)this).staticM(); }
+     * }
+     *
+     * class C implements I {}
+     */
+    public void testInvokeVirtual() {
+        TestBuilder b = factory.getBuilder();
+
+        Interface I = b.intf("I")
+                .defaultMethod("staticM", "()I")
+                    .static_().public_().returns(1).build()
+
+                // force an invokevirtual MR of staticM()
+                .defaultMethod("m", "()I")
+                    .invoke(VIRTUAL, b.intfByName("I"), null, "staticM", "()I", METHODREF).build()
+            .build();
+
+        ConcreteClass C = b.clazz("C").implement(I).build();
+
+        b.test().staticCallSite(I, "staticM", "()I").returns(1).done()
+
+         .test().callSite(I, C, "m", "()I").throws_(IncompatibleClassChangeError.class).done()
+         .test().callSite(C, C, "m", "()I").throws_(IncompatibleClassChangeError.class).done()
+
+        .run();
+    }
+
+    /*
+     * testInvokeIntf
+     *
+     * interface I {
+     *  default static public int staticM() { return 1; }
+     *  default public int m() { return ((I)this).staticM(); }
+     * }
+     *
+     * class C implements I {}
+     */
+    public void testInvokeIntf() {
+        TestBuilder b = factory.getBuilder();
+
+        Interface I = b.intf("I")
+                .defaultMethod("staticM", "()I")
+                    .static_().public_().returns(1).build()
+
+                .defaultMethod("m", "()I")
+                    .invoke(INTERFACE, b.intfByName("I"), null, "staticM", "()I", CALLSITE).build()
+            .build();
+
+        ConcreteClass C = b.clazz("C").implement(I).build();
+
+        b.test().staticCallSite(I, "staticM", "()I").returns(1).done()
+
+         .test().callSite(I, C, "m", "()I").throws_(IncompatibleClassChangeError.class).done()
+         .test().callSite(C, C, "m", "()I").throws_(IncompatibleClassChangeError.class).done()
+
+        .run();
+    }
+
+    /*
+     * testInvokeSpecial
+     *
+     * interface I {
+     *  default static public int staticM() { return 1; }
+     *  default public int m() { return I.super.staticM(); }
+     * }
+     *
+     * class C implements I {}
+     */
+    public void testInvokeSpecial() {
+        TestBuilder b = factory.getBuilder();
+
+        Interface I = b.intf("I")
+                .defaultMethod("staticM", "()I")
+                    .static_().public_().returns(1).build()
+
+                .defaultMethod("m", "()I")
+                    .invoke(SPECIAL, b.intfByName("I"), null, "staticM", "()I", CALLSITE).build()
+            .build();
+
+        ConcreteClass C = b.clazz("C").implement(I).build();
+
+        b.test().staticCallSite(I, "staticM", "()I").returns(1).done()
+
+         .test().callSite(I, C, "m", "()I").throws_(IncompatibleClassChangeError.class).done()
+         .test().callSite(C, C, "m", "()I").throws_(IncompatibleClassChangeError.class).done()
+
+        .run();
+    }
+
+    /*
+     * testStaticVsDefault
+     *
+     * interface I {
+     *  default static public int m() { return 1; }
+     *  default public int m() { return 2; }
+     * }
+     *
+     * class C implements I {}
+     */
+    public void testStaticVsDefault() {
+        TestBuilder b = factory.getBuilder();
+
+        Interface I = b.intf("I")
+                .defaultMethod("m", "()I")
+                    .static_().public_().returns(1).build()
+                .defaultMethod("m", "()I")
+                    .public_().returns(2).build()
+            .build();
+
+        ConcreteClass C = b.clazz("C").implement(I).build();
+
+        b.test().staticCallSite(I, "m", "()I").throws_(ClassFormatError.class).done()
+
+         // FIXME: throws exception during an attempt to lookup Test2.test() method
+
+         // Invalid test. ClassFormatError is thrown at verification time, rather
+         // than execution time.
+         // .test().callSite(I, C, "m", "()I").throws_(ClassFormatError.class).done()
+         .test().callSite(C, C, "m", "()I").throws_(ClassFormatError.class).done()
+
+        .run();
+    }
+
+    // call static method from default method
+    /*
+     * testInvokeFromDefaultMethod
+     *
+     * interface I {
+     *  default static public int staticPublicM() { return 1; }
+     *  default public int invokePublic() { return I.staticPublicM(); }
+     *  default static private int staticPrivateM() { return 1; }
+     *  default public int invokePrivate() { return I.staticPrivateM(); }
+     * }
+     *
+     * class C implements I {}
+     */
+    public void testInvokeFromDefaultMethod() throws Exception {
+        TestBuilder b = factory.getBuilder();
+
+        Interface I = b.intf("I")
+                .defaultMethod("staticPublicM", "()I")
+                    .static_().public_().returns(1).build()
+                .defaultMethod("invokePublic", "()I")
+                    .invokeStatic(b.intfByName("I"), "staticPublicM", "()I").build()
+
+                .defaultMethod("staticPrivateM", "()I")
+                    .static_().private_().returns(1).build()
+                .defaultMethod("invokePrivate", "()I")
+                    .invokeStatic(b.intfByName("I"), "staticPrivateM", "()I").build()
+            .build();
+
+        ConcreteClass C = b.clazz("C").implement(I).build();
+
+        Class expectedClass;
+        if (factory.getExecutionMode().equals("REFLECTION")) {
+            expectedClass = NoSuchMethodException.class;
+        } else {
+            expectedClass = IllegalAccessError.class;
+        }
+
+        // call static method from another class
+        b.test().staticCallSite(I, "staticPublicM", "()I").returns(1).done()
+         .test().staticCallSite(I, "staticPrivateM", "()I").throws_(expectedClass).done()
+
+         // call public static method from default method
+         .test().callSite(I, C, "invokePublic", "()I").returns(1).done()
+         .test().callSite(C, C, "invokePublic", "()I").returns(1).done()
+
+         // call private static method from default method
+         .test().callSite(I, C, "invokePrivate", "()I").returns(1).done()
+         .test().callSite(C, C, "invokePrivate", "()I").returns(1).done()
+
+        .run();
+    }
+
+    // call static method from implementing subclass
+    /*
+     * testInvokeFromSubclass
+     *
+     * interface I {
+     *  default static public int staticPublicM() { return 1; }
+     *  default static private int staticPrivateM() { return 1; }
+     * }
+     *
+     * class C implements I {
+     *  public int invokePublic() { return I.staticPublicM(); }
+     *  public int invokePrivate() { return I.staticPublicM(); }
+     *
+     * I.staticPublicM();  ==> returns 1;
+     * I.staticPrivateM(); ==> Either NSME or IAE depending on execution mode
+     * C c = new C(); c.invokePublic(); ==> returns 1 or if -ver < 52 IAE or VerifyError
+     * C c = new C(); c.invokePrivate() ==> IAE or if -ver < 52, IAE or VerifyError
+     * }
+     */
+
+    @NotApplicableFor(modes = { REDEFINITION }) // Can't redefine a class that gets error during loading
+    public void testInvokeFromSubclass() throws Exception {
+        TestBuilder b = factory.getBuilder();
+
+        Interface I = b.intf("I")
+                .defaultMethod("staticPublicM", "()I")
+                    .static_().public_().returns(1).build()
+
+                .defaultMethod("staticPrivateM", "()I")
+                    .static_().private_().returns(1).build()
+            .build();
+
+        ConcreteClass C = b.clazz("C").implement(I)
+                .concreteMethod("invokePublic", "()I")
+                    .invokeStatic(b.intfByName("I"), "staticPublicM", "()I").build()
+                .concreteMethod("invokePrivate", "()I")
+                    .invokeStatic(b.intfByName("I"), "staticPrivateM", "()I").build()
+            .build();
+
+        Class expectedError1;
+        if (factory.getExecutionMode().equals("REFLECTION")) {
+            expectedError1 = NoSuchMethodException.class;
+        } else {
+            expectedError1 = IllegalAccessError.class;
+        }
+
+        // Adjust for -ver < 52
+        if (factory.getVer() >=52) {
+            // call static method from another class
+            b.test().staticCallSite(I, "staticPublicM", "()I").returns(1).done()
+             .test().staticCallSite(I, "staticPrivateM", "()I").throws_(expectedError1).done()
+
+            // call static method from implementing subclass
+             .test().callSite(C, C, "invokePublic", "()I").returns(1).done()
+             .test().callSite(C, C, "invokePrivate", "()I").throws_(IllegalAccessError.class).done()
+
+            .run();
+        } else {
+            // call static method from another class
+            b.test().staticCallSite(I, "staticPublicM", "()I").returns(1).done()
+             .test().staticCallSite(I, "staticPrivateM", "()I").throws_(expectedError1).done()
+
+            // call static method from implementing subclass
+            // invokestatic IMR - not supported for ver < 52
+             .test().callSite(C, C, "invokePublic",  "()I").throws_(VerifyError.class).done()
+             .test().callSite(C, C, "invokePrivate", "()I").throws_(VerifyError.class).done()
+
+            .run();
+        }
+    }
+
+    // static method doesn't participate in default method analysis:
+    //   method overriding
+    /*
+     * testNotInherited
+     *
+     * interface I {
+     *  default static public int m() { return 1; }
+     * }
+     *
+     * class C implements I {}
+     */
+    public void testNotInherited() {
+        TestBuilder b = factory.getBuilder();
+
+        Interface I = b.intf("I")
+                .defaultMethod("m", "()I")
+                    .static_().public_().returns(1).build()
+            .build();
+
+        ConcreteClass C = b.clazz("C").implement(I).build();
+
+        if (!factory.getExecutionMode().equals("REFLECTION")) {
+            b.test().staticCallSite(I, "m", "()I").returns(1).done()
+              // invokeinterface to static method ==> ICCE
+              .test().callSite(I, C, "m", "()I").throws_(IncompatibleClassChangeError.class).done()
+             .test().callSite(C, C, "m", "()I").throws_(NoSuchMethodError.class).done()
+            .run();
+        } else {
+            b.test().staticCallSite(I, "m", "()I").returns(1).done()
+             .test().callSite(I, C, "m", "()I").returns(1).done()
+             .test().callSite(C, C, "m", "()I").throws_(NoSuchMethodError.class).done()
+            .run();
+        }
+    }
+
+    /*
+     * testDefaultVsConcrete
+     *
+     * interface I {
+     *  default static public int m() { return 1; }
+     * }
+     *
+     * class C implements I {
+     *  public int m() { return 2; }
+     * }
+     * TEST: I o = new C(); o.m()I throws ICCE
+     * TEST: C o = new C(); o.m()I == 2
+     */
+    public void testDefaultVsConcrete() {
+        TestBuilder b = factory.getBuilder();
+
+        Interface I = b.intf("I")
+                .defaultMethod("m", "()I")
+                    .static_().public_().returns(1).build()
+            .build();
+
+        ConcreteClass C = b.clazz("C").implement(I)
+                .concreteMethod("m", "()I").returns(2).build()
+            .build();
+
+        if (!factory.getExecutionMode().equals("REFLECTION")) {
+            // invokeinterface to static method ==> ICCE
+            b.test().callSite(I, C, "m", "()I").throws_(IncompatibleClassChangeError.class).done()
+             .test().callSite(C, C, "m", "()I").returns(2).done().run();
+        } else {
+            b.test().callSite(I, C, "m", "()I").returns(1).done()
+             .test().callSite(C, C, "m", "()I").returns(2).done().run();
+        }
+
+    }
+
+    /*
+     * TEST: StaticMethodsTest.testOverrideStatic
+     *
+     * interface I {
+     *  default static public int m() { return 1; }
+     * }
+     *
+     * interface J extends I {
+     *  default public int m() { return 2; }
+     * }
+     *
+     * class C implements J {
+     * }
+     */
+    public void testOverrideStatic() {
+        TestBuilder b = factory.getBuilder();
+
+        Interface I = b.intf("I")
+                .defaultMethod("m", "()I")
+                    .static_().public_().returns(1).build()
+            .build();
+
+        Interface J = b.intf("J").extend(I)
+                .defaultMethod("m", "()I")
+                    .returns(2).build()
+            .build();
+
+        ConcreteClass C = b.clazz("C").implement(J).build();
+
+        if (!factory.getExecutionMode().equals("REFLECTION")) {
+            b.test().staticCallSite(I, "m", "()I").returns(1).done()
+             .test().callSite(I, C, "m", "()I").throws_(IncompatibleClassChangeError.class).done()
+             .test().callSite(J, C, "m", "()I").returns(2).done()
+             .test().callSite(C, C, "m", "()I").returns(2).done()
+            .run();
+        } else {
+            b.test().staticCallSite(I, "m", "()I").returns(1).done()
+             .test().callSite(I, C, "m", "()I").returns(1).done()
+             .test().callSite(J, C, "m", "()I").returns(2).done()
+             .test().callSite(C, C, "m", "()I").returns(2).done()
+            .run();
+        }
+
+    }
+
+    /*
+     * testOverrideDefault
+     *
+     * interface I {
+     *  default public int m() { return 1; }
+     * }
+     *
+     * interface J extends I {
+     *  default static public int m() { return 2; }
+     * }
+     *
+     * class C implements J {}
+     *
+     * TEST: I o = new C(); o.m()I == 1
+     * TEST: J o = new C(); o.m()I == ICCE
+     * TEST: C o = new C(); o.m()I == 1
+     */
+    public void testOverrideDefault() {
+        TestBuilder b = factory.getBuilder();
+
+        Interface I = b.intf("I")
+                .defaultMethod("m", "()I")
+                    .returns(1).build()
+            .build();
+
+        Interface J = b.intf("J").extend(I)
+                .defaultMethod("m", "()I")
+                    .static_().public_().returns(2).build()
+            .build();
+
+        ConcreteClass C = b.clazz("C").implement(J).build();
+
+        if (!factory.getExecutionMode().equals("REFLECTION")) {
+            b.test().callSite(I, C, "m", "()I").returns(1).done()
+             .test().callSite(J, C, "m", "()I").throws_(IncompatibleClassChangeError.class).done()
+             .test().callSite(C, C, "m", "()I").returns(1).done()
+
+            .run();
+
+        } else {
+            // Reflection correctly finds the static method defined in J and
+            // calls it with invokestatic.
+
+            b.test().callSite(I, C, "m", "()I").returns(1).done()
+             .test().callSite(J, C, "m", "()I").returns(2).done()
+             .test().callSite(C, C, "m", "()I").returns(1).done()
+
+            .run();
+        }
+    }
+
+    /*
+     * testReabstract
+     *
+     * interface I {
+     *  default static public int m() { return 1; }
+     * }
+     *
+     * interface J extends I {
+     *  abstract public int m();
+     * }
+     *
+     * class C implements J {}
+     *
+     * TEST: I o = new C(); o.m()I throws ICCE
+     *                             -mode reflect returns 1
+     * TEST: J o = new C(); o.m()I throws AME
+     * TEST: C o = new C(); o.m()I throws AME
+     */
+    public void testReabstract() {
+        TestBuilder b = factory.getBuilder();
+
+        Interface I = b.intf("I")
+                .defaultMethod("m", "()I")
+                    .static_().public_().returns(1).build()
+            .build();
+
+        Interface J = b.intf("J").extend(I)
+                .abstractMethod("m", "()I").build()
+            .build();
+
+        ConcreteClass C = b.clazz("C").implement(J).build();
+
+        if (!factory.getExecutionMode().equals("REFLECTION")) {
+            b.test().callSite(I, C, "m", "()I").throws_(IncompatibleClassChangeError.class).done()
+             .test().callSite(J, C, "m", "()I").throws_(AbstractMethodError.class).done()
+             .test().callSite(C, C, "m", "()I").throws_(AbstractMethodError.class).done()
+            .run();
+        } else {
+            b.test().callSite(I, C, "m", "()I").returns(1).done()
+             .test().callSite(J, C, "m", "()I").throws_(AbstractMethodError.class).done()
+             .test().callSite(C, C, "m", "()I").throws_(AbstractMethodError.class).done()
+            .run();
+        }
+    }
+
+    /*
+     * testOverrideAbstract
+     *
+     * interface I {
+     *  abstract public int m();
+     * }
+     *
+     * interface J extends I {
+     *  default static public int m() { return 1; }
+     * }
+     *
+     * class C implements J {}
+     *
+     * TEST: I o = new C(); o.m()I throws AME
+     * TEST: J o = new C(); o.m()I throws ICCE
+     *                             -mode reflect returns 1
+     * TEST: C o = new C(); o.m()I throws AME
+     */
+    public void testOverrideAbstract() {
+        TestBuilder b = factory.getBuilder();
+
+        Interface I = b.intf("I")
+                .abstractMethod("m", "()I").build()
+            .build();
+
+        Interface J = b.intf("J").extend(I)
+                .defaultMethod("m", "()I")
+                    .static_().public_().returns(1).build()
+            .build();
+
+        ConcreteClass C = b.clazz("C").implement(J).build();
+
+        if (!factory.getExecutionMode().equals("REFLECTION")) {
+            b.test().callSite(I, C, "m", "()I").throws_(AbstractMethodError.class).done()
+             .test().callSite(J, C, "m", "()I").throws_(IncompatibleClassChangeError.class).done()
+             .test().callSite(C, C, "m", "()I").throws_(AbstractMethodError.class).done()
+
+            .run();
+        } else {
+            b.test().callSite(I, C, "m", "()I").throws_(AbstractMethodError.class).done()
+             .test().callSite(J, C, "m", "()I").returns(1).done()
+             .test().callSite(C, C, "m", "()I").throws_(AbstractMethodError.class).done()
+
+            .run();
+        }
+    }
+
+    /*
+     * testInheritedDefault
+     *
+     * interface I {
+     *  default static public int m() { return 1; }
+     * }
+     *
+     * class B implements I {}
+     *
+     * class C extends B {}
+     *
+     * TEST: I o = new C(); o.m()I throws IncompatibleClassChangeError
+     *                             -mode reflect returns 1
+     * TEST: B o = new C(); o.m()I throws NoSuchMethodError
+     * TEST: C o = new C(); o.m()I throws NoSuchMethodError
+     */
+    public void testInheritedDefault() {
+        TestBuilder b = factory.getBuilder();
+
+        Interface I = b.intf("I")
+                .defaultMethod("m", "()I")
+                    .static_().public_().returns(1).build()
+            .build();
+
+        ConcreteClass B = b.clazz("B").implement(I).build();
+        ConcreteClass C = b.clazz("C").extend(B).build();
+
+        if (!factory.getExecutionMode().equals("REFLECTION")) {
+            b.test().callSite(I, C, "m","()I").throws_(IncompatibleClassChangeError.class).done()
+             .test().callSite(B, C, "m","()I").throws_(NoSuchMethodError.class).done()
+             .test().callSite(C, C, "m","()I").throws_(NoSuchMethodError.class).done()
+            .run();
+        } else {
+            b.test().callSite(I, C, "m","()I").returns(1).done()
+             .test().callSite(B, C, "m","()I").throws_(NoSuchMethodError.class).done()
+             .test().callSite(C, C, "m","()I").throws_(NoSuchMethodError.class).done()
+            .run();
+        }
+
+    }
+
+    /*
+     * testDefaultVsConcreteInherited
+     *
+     * interface I {
+     *  default static public int m() { return 1; }
+     * }
+     *
+     * class B {
+     *  public int m() { return 2; }
+     * }
+     *
+     * class C extends B implements I {}
+     *
+     */
+    public void testDefaultVsConcreteInherited() {
+        TestBuilder b = factory.getBuilder();
+
+        Interface I = b.intf("I")
+                .defaultMethod("m", "()I")
+                    .static_().public_().returns(1).build()
+            .build();
+
+        ConcreteClass B = b.clazz("B")
+                .concreteMethod("m", "()I").returns(2).build()
+                .build();
+
+        ConcreteClass C = b.clazz("C").extend(B).implement(I).build();
+
+        if (!factory.getExecutionMode().equals("REFLECTION")) {
+            b.test().staticCallSite(I, "m","()I").returns(1).done()
+             .test().callSite(I, C, "m","()I").throws_(IncompatibleClassChangeError.class).done()
+             .test().callSite(B, C, "m","()I").returns(2).done()
+             .test().callSite(C, C, "m","()I").returns(2).done()
+            .run();
+        } else {
+            b.test().staticCallSite(I, "m","()I").returns(1).done()
+             .test().callSite(I, C, "m","()I").returns(1).done()
+             .test().callSite(B, C, "m","()I").returns(2).done()
+             .test().callSite(C, C, "m","()I").returns(2).done()
+            .run();
+        }
+
+    }
+
+    /*
+     * testDefaultVsStaticConflict
+     *
+     * interface I {
+     *  default static public int m() { return 1; }
+     * }
+     *
+     * interface J {
+     *  default public int m() { return 2; }
+     * }
+     *
+     * class C implements I, J {}
+     *
+     * TEST: I o = new C(); o.m()I throws ICCE
+     *                             -mode reflect returns 1
+     * TEST: J o = new C(); o.m()I == 2
+     * TEST: C o = new C(); o.m()I == 2
+     */
+    public void testDefaultVsStaticConflict() {
+        TestBuilder b = factory.getBuilder();
+
+        Interface I = b.intf("I")
+                .defaultMethod("m", "()I")
+                    .static_().public_().returns(1).build()
+            .build();
+
+        Interface J = b.intf("J")
+                .defaultMethod("m", "()I").returns(2).build()
+            .build();
+
+        ConcreteClass C = b.clazz("C").implement(I,J).build();
+
+        if (!factory.getExecutionMode().equals("REFLECTION")) {
+            b.test().callSite(I, C, "m", "()I").throws_(IncompatibleClassChangeError.class).done()
+             .test().callSite(J, C, "m", "()I").returns(2).done()
+             .test().callSite(C, C, "m", "()I").returns(2).done()
+            .run();
+        } else {
+            b.test().callSite(I, C, "m", "()I").returns(1).done()
+             .test().callSite(J, C, "m", "()I").returns(2).done()
+             .test().callSite(C, C, "m", "()I").returns(2).done()
+            .run();
+        }
+
+    }
+    /*
+     * testStaticSuperClassVsDefaultSuperInterface
+     *
+     * interface I {
+     *  default public int m() { return 1; }
+     * }
+     *
+     * class A {
+     *  public static int m() { return 2; }
+     * }
+     *
+     * class C extends A implements I {}
+     *
+     * TEST: C o = new C(); o.m()I throws ICCE
+     *                             -mode reflect returns 2
+     * TEST: I o = new C(); o.m()I == 1
+     */
+    public void testStaticSuperClassVsDefaultSuperInterface() {
+        TestBuilder b = factory.getBuilder();
+
+        Interface I = b.intf("I")
+                .defaultMethod("m", "()I")
+                    .public_().returns(1).build()
+            .build();
+
+        ConcreteClass A = b.clazz("A")
+                .concreteMethod("m", "()I")
+                    .static_().public_().returns(2).build()
+            .build();
+
+        ConcreteClass C = b.clazz("C").extend(A).implement(I).build();
+
+        if (!factory.getExecutionMode().equals("REFLECTION")) {
+            b.test().callSite(C, C, "m", "()I").throws_(IncompatibleClassChangeError.class).done()
+             .test().callSite(I, C, "m", "()I").returns(1).done()
+            .run();
+        } else {
+            b.test().callSite(C, C, "m", "()I").returns(2).done()
+             .test().callSite(I, C, "m", "()I").returns(1).done()
+            .run();
+        }
+    }
+    /*
+     * testStaticLocalVsDefaultSuperInterface
+     *
+     * interface I {
+     *  default public int m() { return 1; }
+     * }
+     *
+     * class A implements I {
+     *  public static int m() { return 2; }
+     * }
+     *
+     * class C extends A implements I {}
+     *
+     * TEST: A o = new A(); o.m()I throws ICCE
+     *                             -mode reflect returns 2
+     * TEST: I o = new A(); o.m()I == 1
+     */
+    public void testStaticLocalVsDefaultSuperInterface() {
+        TestBuilder b = factory.getBuilder();
+
+        Interface I = b.intf("I")
+                .defaultMethod("m", "()I")
+                    .public_().returns(1).build()
+            .build();
+
+        ConcreteClass A = b.clazz("A").implement(I)
+                .concreteMethod("m", "()I")
+                    .static_().public_().returns(2).build()
+            .build();
+
+        ConcreteClass C = b.clazz("C").extend(A).implement(I).build();
+
+        if (!factory.getExecutionMode().equals("REFLECTION")) {
+            b.test().callSite(A, A, "m", "()I").throws_(IncompatibleClassChangeError.class).done()
+             .test().callSite(I, A, "m", "()I").returns(1).done()
+            .run();
+        } else {
+            b.test().callSite(A, A, "m", "()I").returns(2).done()
+             .test().callSite(I, A, "m", "()I").returns(1).done()
+            .run();
+        }
+    }
+    /*
+     * testConflictingDefaultsandStaticMethod
+     * @bug 8033150
+     *
+     * interface I {
+     *  default public int m() { return 1; }
+     * }
+     *
+     * interface J {
+     *  default public int m() { return 2; }
+     * }
+     *
+     * class A implements I, J {
+     *  public static int m() { return 3; }
+     * }
+     *
+     * class C extends A {}
+     *
+     * TEST: C.m(); should call A.m, return value = 3
+     */
+    public void testConflictingDefaultsandStaticMethod() {
+        TestBuilder b = factory.getBuilder();
+
+        Interface I = b.intf("I")
+                .defaultMethod("m", "()I")
+                    .public_().returns(1).build()
+            .build();
+
+        Interface J = b.intf("J")
+                .defaultMethod("m", "()I")
+                    .public_().returns(2).build()
+            .build();
+
+        ConcreteClass A = b.clazz("A").implement(I,J)
+                .concreteMethod("m", "()I")
+                    .static_().public_().returns(3).build()
+            .build();
+
+        ConcreteClass C = b.clazz("C").extend(A).build();
+
+        b.test().staticCallSite(C, "m", "()I").returns(3).done()
+         .run();
+    }
+}