Test Results

Write 1000 charactersWrite 0.567 microseconds5.12 1.332 microseconds14.884

Parser	Read 40 characters	Write 40 characters	Read 100 characters	100 characters	Read	1000 characters
Jackson Read	7.488 microseconds0.296 microseconds	10.984 microseconds	microseconds	50.49	microseconds
GSON Read	0.509 microseconds0.531 microseconds	0.818 microseconds	microseconds	8.212	microseconds	GSON parses all numerical values to Doubles and as such it unable to dynamically allocate the object type that it is parsing
Jackson Write	0.296 microseconds	0.567 microseconds	5.12 microseconds
GSON Write	0.531 microseconds	1.332 microseconds	14.884 microseconds

Parser	Pros	Cons
Jackson	Consistent conversion of numerics More widely used Faster writes **** Built into Spring Framework Has annotation support	Slower Read
GSON	Faster Reads	Converts numerics to Doubles Less Popular

...

Versions Compared