Logging does not show anything

[Nina Binde]

I am doing the simplest kind of file logging. I modified a few things in logging.properties in the jre/lib folder like:
1. Commented out ConsoleHandler since wanted to use the FileHandler:
#handlers= java.util.logging.ConsoleHandler
handlers= java.util.logging.FileHandler, java.util.logging.ConsoleHandler

2. Modified the level of the logging like:
.level= ALL

3. Modified the level of the ConsoleHandler and added FileHandler level.
java.util.logging.ConsoleHandler.level = ALL
java.util.logging.FileHandler.level = ALL

In my code, I just use the default logging like:

1. Instantiate:
private Logger log = Logger.getLogger("suncertify.ui");

2. Use it like:
log.info("Invalid parameter passed in startup: " + args[0]);

I am puzzled as to why I am not seeing any .log file in my home directory. Am I doing something wrong here? Please advise. Thank you.

[John Stone]

I'm creating new handler for this, I didn't modify anything in logging.properties, which I think is not a good idea, because then your logging could work differently on assessor's machine.

FileHandler dbLogFileHandler = null;
dbLogFileHandler = new FileHandler("application.log");
dbLogFileHandler.setFormatter(new SimpleFormatter());
log.addHandler(dbLogFileHandler);

[rinke hoekstra]

Originally posted by Nina Binde:
I am doing the simplest kind of file logging. I modified a few things in logging.properties in the jre/lib folder like:
1. Commented out ConsoleHandler since wanted to use the FileHandler:
#handlers= java.util.logging.ConsoleHandler
handlers= java.util.logging.FileHandler, java.util.logging.ConsoleHandler

2. Modified the level of the logging like:
.level= ALL

3. Modified the level of the ConsoleHandler and added FileHandler level.
java.util.logging.ConsoleHandler.level = ALL
java.util.logging.FileHandler.level = ALL

In my code, I just use the default logging like:

1. Instantiate:
private Logger log = Logger.getLogger("suncertify.ui");

2. Use it like:
log.info("Invalid parameter passed in startup: " + args[0]);

I am puzzled as to why I am not seeing any .log file in my home directory. Am I doing something wrong here? Please advise. Thank you.

I wouldn't change anything in the properties file. You can set things up programmatically, and you aren't allowed to use a properties file for logging anyways. See John's posting.

[Nina Binde]

Thank you John and Rinke. I did as you guys told and lo and behold it worked!

[Musab Al-Rawi]

you need to add the file handler to the logger...

dbLogFileHandler = new FileHandler("application.log");
dbLogFileHandler.setFormatter(new SimpleFormatter());
log.addHandler(dbLogFileHandler);

application.log is the log file name.