JDK-8230059 : [Graal] Initialized array might be set to null if initialized with negative size
- Type: Bug
- Component: hotspot
- Sub-Component: compiler
- Affected Version: 14
- Priority: P3
- Status: Closed
- Resolution: Other
- Submitted: 2019-08-22
- Updated: 2019-11-04
- Resolved: 2019-11-04
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Resolved: Release in which this issue/RFE has been resolved.
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| JDK 14 |
|---|
14Resolved  |
Related Reports
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Duplicate :
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Description
The attached test fails with NPE with Graal, works fine with C2/C1.
To reproduce
java -Xmx4G -Xcomp -Xbatch -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI -XX:-TieredCompilation -XX:+UseJVMCICompiler -Djvmci.Compiler=graal -XX:CompileOnly=Test -XX:JVMCIThreads=1 Test
The failed block is her. The iArr is set to null in line "114: iArr = new int[i16];"
----
FuzzerUtils.init(iArr, 48);
FuzzerUtils.init(dArr1, 97.120959);
for (int i1 : iArr) {
iArr[(i1 >>> 1) % N] = (int)((i1 + d) * (iMeth1((byte)(-26), 23003) * i1));
s1 |= (short)Test.instanceCount;
}
try {
i16 = -10;
iArr = new int[i16];
System.out.println(iArr);
}
catch (NegativeArraySizeException exc3) {
System.out.println(iArr);
---
Output:
[I@1ee807c6
[I@1ee807c6
[[D@76a4d6c
i s2 i20 = 3,-22665,308
i21 b2 i22 = 0,1,1
i23 i24 i25 = 11,13,85
i26 by1 i27 = 24354,0,1
i28 i29 i30 = 56665,2,-59409
i31 iArr1 bArr = 2,5744,52917
dArr2 = 5014282634130562625
Test.instanceCount dFld Test.fFld = -532517063,4672423618418835456,1186874932
Test.lArrFld Test.fArrFld = -1786446380397048024,4644683212426575872
vMeth_check_sum: 7032348078224458096
iMeth1_check_sum: -484578656290674832
iMeth_check_sum: -9120033907704388679
null
null
[[D@78a2da20
Exception in thread "main" java.lang.NullPointerException
at FuzzerUtils.checkSum(FuzzerUtils.java:224)
at Test.iMeth(Test.java:142)
at Test.mainTest(Test.java:160)
at Test.main(Test.java:221)
Comments
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