1 /* 2 * Copyright (c) 2014, 2018, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 /* 25 * @test 26 * @bug 8031195 27 * @summary JDB allows evaluation of calls to static interface methods 28 * @comment converted from test/jdk/com/sun/jdi/EvalInterfaceStatic.sh 29 * 30 * @library /test/lib 31 * @build EvalInterfaceStatic 32 * @run main/othervm EvalInterfaceStatic 33 */ 34 35 import lib.jdb.JdbCommand; 36 import lib.jdb.JdbTest; 37 38 /* 39 * The test exercises the ability to invoke static methods on interfaces. 40 * Static interface methods are a new feature added in JDK8. 41 * 42 * The test makes sure that it is possible to invoke an interface 43 * static method and that the static methods are not inherited by extending 44 * interfaces. 45 */ 46 interface EvalStaticInterfaces { staticMethod1()47 static String staticMethod1() { 48 return "base:staticMethod1"; 49 } 50 staticMethod2()51 static String staticMethod2() { 52 return "base:staticMethod2"; 53 } 54 main(String[] args)55 public static void main(String[] args) { 56 // prove that these work 57 System.out.println("base staticMethod1(): " + EvalStaticInterfaces.staticMethod1()); 58 System.out.println("base staticMethod2(): " + EvalStaticInterfaces.staticMethod2()); 59 System.out.println("overridden staticMethod2(): " + ExtendedEvalStaticInterfaces.staticMethod2()); 60 System.out.println("base staticMethod3(): " + ExtendedEvalStaticInterfaces.staticMethod3()); 61 62 gus(); 63 } 64 gus()65 static void gus() { 66 int x = 0; // @1 breakpoint 67 } 68 } 69 70 interface ExtendedEvalStaticInterfaces extends EvalStaticInterfaces { staticMethod2()71 static String staticMethod2() { 72 return "extended:staticMethod2"; 73 } 74 staticMethod3()75 static String staticMethod3() { 76 return "extended:staticMethod3"; 77 } 78 } 79 80 81 public class EvalInterfaceStatic extends JdbTest { main(String argv[])82 public static void main(String argv[]) { 83 new EvalInterfaceStatic().run(); 84 } 85 EvalInterfaceStatic()86 private EvalInterfaceStatic() { 87 super(DEBUGGEE_CLASS); 88 } 89 90 private static final String DEBUGGEE_CLASS = EvalStaticInterfaces.class.getName(); 91 92 @Override runCases()93 protected void runCases() { 94 setBreakpointsFromTestSource("EvalInterfaceStatic.java", 1); 95 // Run to breakpoint #1 96 jdb.command(JdbCommand.run()); 97 98 evalShouldContain("EvalStaticInterfaces.staticMethod1()", "base:staticMethod1"); 99 100 evalShouldContain("EvalStaticInterfaces.staticMethod2()", "base:staticMethod2"); 101 102 evalShouldNotContain("ExtendedEvalStaticInterfaces.staticMethod1()", "base:staticMethod1"); 103 104 evalShouldContain("ExtendedEvalStaticInterfaces.staticMethod2()", "extended:staticMethod2"); 105 106 evalShouldContain("ExtendedEvalStaticInterfaces.staticMethod3()", "extended:staticMethod3"); 107 108 jdb.contToExit(1); 109 } 110 111 } 112