C:\Work\paramcheck>javac dk\vajhoej\aop\paramcheck\*.java dk\vajhoej\aop\paramcheck\test\*.java

C:\Work\paramcheck>java  dk.vajhoej.aop.paramcheck.test.TestMain
X is OK
null is OK
5 is OK
50 is OK
A123 is OK
XXXXXXXXXXXXXXX is OK
ABCD is OK

C:\Work\paramcheck>call ajc -source 1.8 dk\vajhoej\aop\paramcheck\*.java dk\vajhoej\aop\paramcheck\test\*.java

C:\Work\paramcheck>java  dk.vajhoej.aop.paramcheck.test.TestMain
X is OK
value is null
5 is OK
50 not in interval
A123 is OK
XXXXXXXXXXXXXXX has invalid length
ABCD does not match pattern