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From "Gary Gregory (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (LOG4J2-1502) CsvParameterLayout and CsvLogEventLayout insert NUL character if data starts with {, (, [ or "
Date Mon, 29 Aug 2016 19:44:20 GMT

     [ https://issues.apache.org/jira/browse/LOG4J2-1502?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Gary Gregory updated LOG4J2-1502:
---------------------------------
    Summary: CsvParameterLayout and CsvLogEventLayout insert NUL character if data starts
with {, (, [ or "  (was: CsvParameterLayout is inserting NUL character if data starts with
{, (, [ or ")

> CsvParameterLayout and CsvLogEventLayout insert NUL character if data starts with {,
(, [ or "
> ----------------------------------------------------------------------------------------------
>
>                 Key: LOG4J2-1502
>                 URL: https://issues.apache.org/jira/browse/LOG4J2-1502
>             Project: Log4j 2
>          Issue Type: Bug
>          Components: Layouts
>    Affects Versions: 2.6.2
>            Reporter: Sumit Singhal
>
> I am using CsvParameterLayout to generate a CSV file out of log4j2. One of the column
is a JSON string. Following is the logger method I am using:
> {code:java}
> logger.info("log:{}",json);
> {code}
> Following is the JSON string:
> {"id":10,"name":"sumit"}
> And following is the string which is getting printed in CSV output file:
>  NUL{"id":10,"name":"sumit"}NUL
> The NUL character is the \x00 character. When I open the file in notepad++, then only
this character appears. In notepad it shows as space. This poses a problem in CSV processing
module.
> If there is some alphabet before {, then the output in CSV is fine. It seems as if log4j
is escaping '{' with a NUL character. It is happening if the string starts with {, (, [, '
or ".
> Following are the dependencies:
> {code:xml}
>                   <dependency>
> 			<groupId>org.apache.logging.log4j</groupId>
> 			<artifactId>log4j-core</artifactId>
> 			<version>2.6.2</version>
> 		</dependency>
> 		<dependency>
> 			<groupId>org.apache.logging.log4j</groupId>
> 			<artifactId>log4j-slf4j-impl</artifactId>
> 			<version>2.6.2</version>
> 		</dependency>
> 		<dependency>
> 			<groupId>org.apache.commons</groupId>
> 			<artifactId>commons-csv</artifactId>
> 			<version>1.4</version>
> 		</dependency>
> {code}



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