The default values for min and max pool size are confusing
"max-pool-size" => -1,
"min-pool-size" => -1,

They should either say default

"max-pool-size" => default,
"min-pool-size" => default,

or display the default JCA values which I believe are 2 and 20

"max-pool-size" => 20,
"min-pool-size" => 2,