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Posted to issues@commons.apache.org by "Xu Pengcheng (Jira)" <ji...@apache.org> on 2022/11/02 10:47:00 UTC
[jira] [Updated] (JEXL-383) Inconsistent behavior after overriding toBoolean method in JexlArithmetic
[ https://issues.apache.org/jira/browse/JEXL-383?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Xu Pengcheng updated JEXL-383:
------------------------------
Description:
I tried to overriding "toBoolean" method of JexlArithmetic for 'strict' mode.
{code:java}
@Override
public boolean toBoolean(final Object val) {
if (val == null) {
return false;
} else {
return super.toBoolean(val);
}
} {code}
while executing code:
parameters:
{code:java}
a: null
{code}
but while executing scripts, the behavior is inconsistent
{code:java}
if (a) return 1 else return 2; // returns 2
if (!a) return 1 else return 2; // expects return 1 but throws exception: variable 'a' is null{code}
what should I do to fix it? thanks!
-Pengcheng
was:
I tried to overriding "toBoolean" method of JexlArithmetic for 'strict' mode.
{code:java}
@Override
public boolean toBoolean(final Object val) {
if (val == null) {
return false;
} else {
return super.toBoolean(val);
}
} {code}
while executing code:
parameters:
{code:java}
a: null
{code}
but while executing scripts, the behavior is inconsistent
{code:java}
if (a) return 1 else return 2; // returns 2
if (!a) return 1 else return 2; // expect returns 1 but throws exception: variable 'a' is null{code}
what should I do to fix it? thanks!
-Pengcheng
> Inconsistent behavior after overriding toBoolean method in JexlArithmetic
> -------------------------------------------------------------------------
>
> Key: JEXL-383
> URL: https://issues.apache.org/jira/browse/JEXL-383
> Project: Commons JEXL
> Issue Type: Bug
> Affects Versions: 3.2.1
> Reporter: Xu Pengcheng
> Priority: Major
>
> I tried to overriding "toBoolean" method of JexlArithmetic for 'strict' mode.
> {code:java}
> @Override
> public boolean toBoolean(final Object val) {
> if (val == null) {
> return false;
> } else {
> return super.toBoolean(val);
> }
> } {code}
> while executing code:
> parameters:
> {code:java}
> a: null
> {code}
> but while executing scripts, the behavior is inconsistent
> {code:java}
> if (a) return 1 else return 2; // returns 2
> if (!a) return 1 else return 2; // expects return 1 but throws exception: variable 'a' is null{code}
>
> what should I do to fix it? thanks!
> -Pengcheng
>
>
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