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/*
* @ test
* @ bug 8001071
* @ summary Add simple range check into VM implemenation of Unsafe access methods
* @ requires vm . debug
* @ library / test / lib
* @ modules java . base / jdk . internal . misc
* java . management
* @ run driver RangeCheck
*/
import jdk.test.lib.process.ProcessTools;
import jdk.test.lib.process.OutputAnalyzer;
import jdk.internal.misc.Unsafe;
public class RangeCheck {
public static void main(String args[]) throws Exception {
ProcessBuilder pb = ProcessTools.createTestJvm(
"-Xmx128m" ,
"--add-exports=java.base/jdk.internal.misc=ALL-UNNAMED" ,
"-XX:-CreateCoredumpOnCrash" ,
"-XX:-InlineUnsafeOps" , // The compiler intrinsics doesn't have the assert
DummyClassWithMainRangeCheck.class .getName());
OutputAnalyzer output = new OutputAnalyzer(pb.start());
output.shouldMatch("assert\\(byte_offset < p_size\\) failed: Unsafe access: offset \\d+ > object's size \\d+" );
output.shouldNotHaveExitValue(0 );
}
public static class DummyClassWithMainRangeCheck {
public static void main(String args[]) throws Exception {
Unsafe unsafe = Unsafe.getUnsafe();
unsafe.getReference(new DummyClassWithMainRangeCheck(), Short .MAX_VALUE);
}
}
}
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