How to validate all element from an array are less than a value?

Hi,

say we have an array like this

def my_array = [ [45.26], [44.6],[47.25] ] 

def expected = 50 as Float

how do you validate that each element are less than 50

i tried this:

assert my_array .every {it < expected }

It throws: 

groovy.lang.GroovyRuntimeException: Cannot compare java.util.ArrayList with value '[45.26]' and java.lang.Float with value '50' error at line: ...

It's comparing this value [45.26] instead of this 45.26

i tried this:

assert my_array.max() < expected