Apache
/
commons-math
mirror of https://github.com/apache/commons-math.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Made use of system identity hashcode explicit in seed computation. JIRA: MATH-701. 

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@1197716 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Phil Steitz 2011-11-04 19:08:47 +00:00
parent e0385f30bf
commit 5ba1f1c695
1 changed files with 4 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
src/main/java/org/apache/commons/math/random/RandomDataImpl.java
View File

@ -828,7 +828,7 @@ public class RandomDataImpl implements RandomData, Serializable {
* Returns the RandomGenerator used to generate non-secure random data.
* <p>
* Creates and initializes a default generator if null. Uses a {@link Well19937c}
* generator with {@code System.currentTimeMillis() + hashCode()} as the default seed.
* generator with {@code System.currentTimeMillis() + System.identityHashCode(this))} as the default seed.
* </p>
*
* @return the Random used to generate random data
@ -836,7 +836,7 @@ public class RandomDataImpl implements RandomData, Serializable {
*/
private RandomGenerator getRan() {
if (rand == null) {
rand = new Well19937c(System.currentTimeMillis() + hashCode());
rand = new Well19937c(System.currentTimeMillis() + System.identityHashCode(this));
}
return rand;
}
@ -845,7 +845,7 @@ public class RandomDataImpl implements RandomData, Serializable {
* Returns the SecureRandom used to generate secure random data.
* <p>
* Creates and initializes if null. Uses
* {@code System.currentTimeMillis() + hashCode()} as the default seed.
* {@code System.currentTimeMillis() + System.identityHashCode(this)} as the default seed.
* </p>
*
* @return the SecureRandom used to generate secure random data
@ -853,7 +853,7 @@ public class RandomDataImpl implements RandomData, Serializable {
private SecureRandom getSecRan() {
if (secRand == null) {
secRand = new SecureRandom();
secRand.setSeed(System.currentTimeMillis() + hashCode());
secRand.setSeed(System.currentTimeMillis() + System.identityHashCode(this));
}
return secRand;
}