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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER .
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*
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* 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 ) .
*
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* 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 8141564
* @ summary vtables = trace should have logging from each of the statements in the code
* @ library / test / lib
* @ requires vm . debug
* @ requires vm . flagless
* @ compile ClassB . java
* p1 / A . java
* p2 / B . jcod
* p1 / C . java
* p2 / D . java
* @ modules java . base / jdk . internal . misc
* java . management
* @ run driver VtablesTest
*/
import jdk.test.lib.Platform;
import jdk.test.lib.process.ProcessTools;
import jdk.test.lib.process.OutputAnalyzer;
public class VtablesTest {
public static void main(String[] args) throws Exception {
ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-Xlog:vtables=trace" , "ClassB" );
OutputAnalyzer output = new OutputAnalyzer(pb.start());
output.shouldContain("copy vtable from ClassA to ClassB" );
output.shouldContain("Initializing: ClassB" );
output.shouldContain("adding ClassB.Method1()V" );
output.shouldContain("] overriding with ClassB.Method2()V" );
output.shouldContain("invokevirtual resolved method: caller-class:ClassB" );
output.shouldContain("invokevirtual selected method: receiver-class:ClassB" );
output.shouldContain("NOT overriding with p2.D.nooverride()V" );
output.shouldHaveExitValue(0 );
pb = ProcessTools.createJavaProcessBuilder("-Xlog:vtables=trace" , "p1/C" );
output = new OutputAnalyzer(pb.start());
output.shouldContain("transitive overriding superclass " );
output.shouldHaveExitValue(0 );
}
}
Messung V0.5 in Prozent C=97 H=80 G=88
¤ Dauer der Verarbeitung: 0.10 Sekunden
(vorverarbeitet am 2026-06-10)
¤
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