JDK-8027230 : Overflow in java.lang.instrument.Instrumentation.getObjectSize() method
- Type: Bug
- Component: core-svc
- Sub-Component: java.lang.instrument
- Affected Version: 7u25,emb-8u6,emb-8u26,8
- Priority: P3
- Status: Resolved
- Resolution: Fixed
- OS: windows_7
- Submitted: 2013-08-19
- Updated: 2014-07-29
- Resolved: 2014-05-26
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Unresolved : Release in which this issue/RFE will be addressed.
Resolved: Release in which this issue/RFE has been resolved.
Fixed : Release in which this issue/RFE has been fixed. The release containing this fix may be available for download as an Early Access Release or a General Availability Release.
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Unresolved : Release in which this issue/RFE will be addressed.
Resolved: Release in which this issue/RFE has been resolved.
Fixed : Release in which this issue/RFE has been fixed. The release containing this fix may be available for download as an Early Access Release or a General Availability Release.
To download the current JDK release, click here.
| JDK 8 | JDK 9 |
|---|---|
8u20 b17Fixed  |
9Fixed |
Description
FULL PRODUCT VERSION :
java version " 1.7.0_25 "
Java(TM) SE Runtime Environment (build 1.7.0_25-b17)
Java HotSpot(TM) 64-Bit Server VM (build 23.25-b01, mixed mode)
ADDITIONAL OS VERSION INFORMATION :
Windows 7 64-bit
A DESCRIPTION OF THE PROBLEM :
Overflow in method long getObjectSize(Object objectToSize) from java.lang.instrument.Instrumentation
instrumentation.getObjectSize(new int[600_000_000]) returns -1894967280 (negative value)
STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
java.exe -Xmx4000m -javaagent:object_size_test.jar -jar object_size_test.jar
EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
2400000016
ACTUAL -
-1894967280
REPRODUCIBILITY :
This bug can be reproduced always.
---------- BEGIN SOURCE ----------
import java.lang.instrument.Instrumentation;
public class ObjectSizeTest {
private static Instrumentation instrumentation;
public static void premain(String options, Instrumentation instrumentation) {
ObjectSizeTest.instrumentation = instrumentation;
}
public static void main(String[] args) {
int[] a = new int[1000_000_000];
System.out.println(instrumentation.getObjectSize(a));
}
}
---------- END SOURCE ----------
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