Question

some strange behavior : logger is not available in closure
What is going on here ?

Logger logger = Logger.getLogger("groovy.my.foo");

def printParameters() {
    if(logger.isDebugEnabled())
        logger.debug("print parameters")

    binding.variables.each { key, value ->
        logger.debug("Name=$key value= $value");
    }
} 

works only in case logger provided

 def printParameters(Logger logger)  

no problem with parameters ….
Thanks

Answer 1

A variable within a Groovy script is scoped. If you use a type or def it is defined as local variable and is not accessible within a method. If you declare a variable without a type or def it is added to the script’s binding and is usable in other methods.

Here’s an example:

test = 'output'

printParameters()

def printParameters() {
    binding.variables.each { key, value ->
        println "$test: key=$key, value=$value"
    }
} 

In your case defining the logger instance as logger = Logger.getLogger("groovy.my.foo") should solve your problem.