...
| Code Block | ||
|---|---|---|
| ||
public static int cardinality(Object obj, final Collection col) {
int count = 0;
Iterator it = col.iterator();
while(it.hasNext()) {
Object elt = it.next();
if((null == obj && null == elt) || obj.equals(elt)) { // null pointer dereference
count++;
}
}
return count;
}
|
...
| Code Block | ||
|---|---|---|
| ||
public static int cardinality(Object obj, final Collection col) {
int count = 0;
Iterator it = col.iterator();
while(it.hasNext()) {
Object elt = it.next();
if ((null == obj && null == elt) ||
(null != obj && obj.equals(elt))) {
count++;
}
}
return count;
}
|
...
Search for vulnerabilities resulting from the violation of this rule on the CERT website.
References
| Wiki Markup |
|---|
\[[API 06|AA. Java References#API 06]\] [method doPrivileged()|http://java.sun.com/javase/6/docs/api/java/security/AccessController.html#doPrivileged(java.security.PrivilegedAction)] \[[Reasoning 03|AA. Java References#Reasoning 03]\] Defect ID 00-0001, Null Pointer Dereference \[[SDN 08|AA. Java References#SDN 08]\] [Bug ID 6514454|http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6514454] \[[Hovemeyer 07|AA. Java References#Hovemeyer 07]\] \[[MITRE 09|AA. Java References#MITRE 09]\] [CWE ID 479|http://cwe.mitre.org/data/definitions/476.html] |
...
EXP00-J. Use the same type for the second and third operands in conditional expressions 04. Expressions (EXP) EXP02-J. Do not ignore values returned by methods