removes integer overflow on AbstractList.hashCode()

hansonr · hansonr · commit 396fe1f10865 · 2021-03-27T17:00:25.000-05:00
diff --git a/sources/net.sf.j2s.java.core/src/java/util/AbstractList.java b/sources/net.sf.j2s.java.core/src/java/util/AbstractList.java
@@ -538,7 +538,7 @@ public boolean equals(Object o) {
     public int hashCode() {
         int hashCode = 1;
         for (E e : this)
-            hashCode = 31*hashCode + (e==null ? 0 : e.hashCode());
+            hashCode = (31*hashCode + (e==null ? 0 : e.hashCode()))& 0xFFFFFFFF;
         return hashCode;
     }
 

Original file line number	Diff line number	Diff line change
`@@ -538,7 +538,7 @@ public boolean equals(Object o) {`
`538`	`538`	`public int hashCode() {`
`539`	`539`	`int hashCode = 1;`
`540`	`540`	`for (E e : this)`
`541`		`- hashCode = 31*hashCode + (e==null ? 0 : e.hashCode());`
	`541`	`+ hashCode = (31*hashCode + (e==null ? 0 : e.hashCode()))& 0xFFFFFFFF;`
`542`	`542`	`return hashCode;`
`543`	`543`	`}`
`544`	`544`