/*
* Copyright ( c ) 2014 , 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
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*
* 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 .
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*/
/*
* @ test
* @ bug 8031195
* @ summary JDB allows evaluation of calls to static interface methods
* @ comment converted from test / jdk / com / sun / jdi / EvalInterfaceStatic . sh
*
* @ library / test / lib
* @ build EvalInterfaceStatic
* @ run main / othervm EvalInterfaceStatic
*/
import lib.jdb.JdbCommand;
import lib.jdb.JdbTest;
/*
* The test exercises the ability to invoke static methods on interfaces .
* Static interface methods are a new feature added in JDK8 .
*
* The test makes sure that it is possible to invoke an interface
* static method and that the static methods are not inherited by extending
* interfaces .
*/
interface EvalStaticInterfaces {
static String staticMethod1() {
return "base:staticMethod1" ;
}
static String staticMethod2() {
return "base:staticMethod2" ;
}
public static void main(String[] args) {
// prove that these work
System.out.println("base staticMethod1(): " + EvalStaticInterfaces.staticMethod1());
System.out.println("base staticMethod2(): " + EvalStaticInterfaces.staticMethod2());
System.out.println("overridden staticMethod2(): " + ExtendedEvalStaticInterfaces.staticMethod2());
System.out.println("base staticMethod3(): " + ExtendedEvalStaticInterfaces.staticMethod3());
gus();
}
static void gus() {
int x = 0 ; // @1 breakpoint
}
}
interface ExtendedEvalStaticInterfaces extends EvalStaticInterfaces {
static String staticMethod2() {
return "extended:staticMethod2" ;
}
static String staticMethod3() {
return "extended:staticMethod3" ;
}
}
public class EvalInterfaceStatic extends JdbTest {
public static void main(String argv[]) {
new EvalInterfaceStatic().run();
}
private EvalInterfaceStatic() {
super (DEBUGGEE_CLASS);
}
private static final String DEBUGGEE_CLASS = EvalStaticInterfaces.class .getName();
@Override
protected void runCases() {
setBreakpointsFromTestSource("EvalInterfaceStatic.java" , 1 );
// Run to breakpoint #1
jdb.command(JdbCommand.run());
evalShouldContain("EvalStaticInterfaces.staticMethod1()" , "base:staticMethod1" );
evalShouldContain("EvalStaticInterfaces.staticMethod2()" , "base:staticMethod2" );
evalShouldNotContain("ExtendedEvalStaticInterfaces.staticMethod1()" , "base:staticMethod1" );
evalShouldContain("ExtendedEvalStaticInterfaces.staticMethod2()" , "extended:staticMethod2" );
evalShouldContain("ExtendedEvalStaticInterfaces.staticMethod3()" , "extended:staticMethod3" );
jdb.contToExit(1 );
}
}
Messung V0.5 in Prozent C=88 H=92 G=89
¤ Dauer der Verarbeitung: 0.13 Sekunden
(vorverarbeitet am 2026-06-10)
¤
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