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Date: Sat, 23 Feb 2013 14:30:12 +0000 (UTC)
From: "Benedikt Ritter (JIRA)" <jira@apache.org>
To: issues@commons.apache.org
Message-ID: <JIRA.12556199.1337240044371.328266.1361629812725@arcas>
In-Reply-To: <JIRA.12556199.1337240044371@arcas>
References: <JIRA.12556199.1337240044371@arcas>
Subject: [jira] [Commented] (BEANUTILS-414) Object
 org.apache.commons.beanutils.ConvertUtilsBean.convert(String value, Class
 clazz)  nullPointException
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Content-Transfer-Encoding: quoted-printable


    [ https://issues.apache.org/jira/browse/BEANUTILS-414?page=3Dcom.atlass=
ian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=3D1=
3585126#comment-13585126 ]=20

Benedikt Ritter commented on BEANUTILS-414:
-------------------------------------------

I have added some JavaDoc in r1449325. Please review and comment if you are=
 satisfied with this solution.

TIA!
               =20
> Object org.apache.commons.beanutils.ConvertUtilsBean.convert(String value=
, Class clazz)  nullPointException
> -------------------------------------------------------------------------=
----------------------------------
>
>                 Key: BEANUTILS-414
>                 URL: https://issues.apache.org/jira/browse/BEANUTILS-414
>             Project: Commons BeanUtils
>          Issue Type: Bug
>          Components: ConvertUtils & Converters
>    Affects Versions: 1.8.3
>         Environment: Java Eclipse
> log4j.jar
>            Reporter: Ken.xu
>            Assignee: Benedikt Ritter
>             Fix For: 1.8.4
>
>
>  =E5=9C=A8=E5=B7=A5=E7=A8=8B=E5=81=9A=E5=A6=82=E4=B8=8B=E7=B1=BB=E4=BC=BC=
=E4=BD=BF=E7=94=A8=E6=97=B6=EF=BC=8C=E7=B3=BB=E7=BB=9F=E4=BC=9A=E6=8A=A5nul=
l=E6=8C=87=E9=92=88=E5=BC=82=E5=B8=B8=E3=80=82
> [java] view plaincopyprint?
> 01.import org.apache.commons.beanutils.ConvertUtils; =20
> 02. =20
> 03.public class T { =20
> 04. =20
> 05.    /**=20
> 06.     * @param args=20
> 07.     * @author Ken_xu=20
> 08.     */ =20
> 09.    public static void main(String[] args) { =20
> 10.        // TODO Auto-generated method stub  =20
> 11.        Object obj =3D ConvertUtils.convert("1", null); =20
> 12.        System.out.println(obj); =20
> 13.    } =20
> 14. =20
> 15.} =20
> import org.apache.commons.beanutils.ConvertUtils;
> public class T {
> =09/**
> =09 * @param args
> =09 * @author Ken_xu
> =09 */
> =09public static void main(String[] args) {
> =09=09// TODO Auto-generated method stub
> =09=09Object obj =3D ConvertUtils.convert("1", null);
> =09=09System.out.println(obj);
> =09}
> }
> =20
> Exception in thread "main" java.lang.NullPointerException
>  at org.apache.commons.beanutils.ConvertUtilsBean.convert(ConvertUtilsBea=
n.java:418)
>  at org.apache.commons.beanutils.ConvertUtils.convert(ConvertUtils.java:2=
17)
>  at T.main(T.java:11)
> =20
> =E7=BB=8F=E8=BF=87=E5=88=86=E6=9E=90=E6=BA=90=E4=BB=A3=E7=A0=81=E5=8F=91=
=E7=8E=B0
> Object org.apache.commons.beanutils.ConvertUtilsBean.convert(String value=
, Class clazz)
> =E8=BF=99=E4=B8=AA=E7=B1=BB=E7=9A=84=E8=BF=99=E4=B8=AA=E6=96=B9=E6=B3=95=
=E7=9A=84=E6=BA=90=E4=BB=A3=E7=A0=81=E5=A6=82=E4=B8=8B
> [java] view plaincopyprint?
> 01.public Object convert(String value, Class clazz) { =20
> 02. =20
> 03.    if (log.isDebugEnabled()) { =20
> 04.        log.debug("Convert string '" + value + "' to class '" + =20
> 05.                  clazz.getName() + "'"); =20
> 06.    } =20
> 07.    Converter converter =3D lookup(clazz); =20
> 08.    if (converter =3D=3D null) { =20
> 09.        converter =3D lookup(String.class); =20
> 10.    } =20
> 11.    if (log.isTraceEnabled()) { =20
> 12.        log.trace("  Using converter " + converter); =20
> 13.    } =20
> 14.    return (converter.convert(clazz, value)); =20
> 15. =20
> 16.} =20
>     public Object convert(String value, Class clazz) {
>         if (log.isDebugEnabled()) {
>             log.debug("Convert string '" + value + "' to class '" +
>                       clazz.getName() + "'");
>         }
>         Converter converter =3D lookup(clazz);
>         if (converter =3D=3D null) {
>             converter =3D lookup(String.class);
>         }
>         if (log.isTraceEnabled()) {
>             log.trace("  Using converter " + converter);
>         }
>         return (converter.convert(clazz, value));
>     }
> =20
> =E5=88=86=E6=9E=90=E5=90=8E=E8=AE=A4=E4=B8=BA=E6=98=AF=E7=94=B1=E4=BA=8E=
=E5=BD=93=E5=89=8D=E5=B7=A5=E7=A8=8B=E4=BD=BF=E7=94=A8=E4=BA=86log4j=E5=AE=
=9E=E7=8E=B0=EF=BC=8C=E5=B9=B6=E4=B8=94=E8=AE=BE=E7=BD=AE=E4=BA=86=E5=85=A8=
=E5=B1=80debug=E7=BA=A7=E5=88=AB=EF=BC=8C=E6=9C=80=E7=BB=88=E5=AF=BC=E8=87=
=B4=E6=8A=A5=E5=BC=82=E5=B8=B8=E3=80=82
> =E8=A7=A3=E5=86=B3=E6=96=B9=E6=B3=95=E5=A6=82=E4=B8=8B=EF=BC=9A
> =E5=9C=A8log4j.properties=E9=85=8D=E7=BD=AE=E6=96=87=E4=BB=B6=E4=B8=AD=E5=
=A2=9E=E5=8A=A0=E5=A6=82=E4=B8=8B=E4=BB=A3=E7=A0=81
> [XML] view plaincopyprint?
> 01.#=E5=B1=8F=E8=94=BDBUG org.apache.commons.beanutils.ConvertUtilsBean.c=
onvert(String value, Class clazz) =20
> 02.log4j.logger.org.apache.commons.beanutils=3DINFO =20

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