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List:       openjdk-serviceability-dev
Subject:    hg: jdk8/tl/jdk: 6910473: java.math.BigInteger.bitLength() may return negative "int" on large number
From:       brian.burkhalter () oracle ! com
Date:       2013-10-31 0:47:15
Message-ID: 20131031004802.2EF9262857 () hg ! openjdk ! java ! net
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Changeset: 0734e1584d9d
Author:    bpb
Date:      2013-10-30 17:45 -0700
URL:       http://hg.openjdk.java.net/jdk8/tl/jdk/rev/0734e1584d9d

6910473: java.math.BigInteger.bitLength() may return negative "int" on large numbers
8021203: BigInteger.doubleValue/floatValue returns 0.0 instead of Infinity
8021204: Constructor BigInteger(String val, int radix) doesn't detect overflow
8022780: Incorrect BigInteger division because of MutableBigInteger.bitLength() overflow
Summary: Prevent construction of overflowed BigIntegers.
Reviewed-by: bpb, darcy, psandoz
Contributed-by: Dmitry Nadezhin <dmitry.nadezhin@oracle.com>

! src/share/classes/java/math/BigInteger.java
! src/share/classes/java/math/MutableBigInteger.java
+ test/java/math/BigInteger/BitLengthOverflow.java
+ test/java/math/BigInteger/DivisionOverflow.java
+ test/java/math/BigInteger/DoubleValueOverflow.java
! test/java/math/BigInteger/ExtremeShiftingTests.java
+ test/java/math/BigInteger/StringConstructorOverflow.java
+ test/java/math/BigInteger/SymmetricRangeTests.java

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