WebDSL code:

function minutes(x : Long) : Long {
  var factor : Long := 60;
  return seconds(x * factor);
}

Generated Java code:

Long minutes_factor0 = 60;

Javac error:

minutes_.java:26: incompatible types
found   : int
required: java.lang.Long
  Long minutes_factor0 = 60;

Submitted by Eelco Visser on 19 March 2010 at 10:31

Workaround: Use L postfix of constant value.

function minutes(x : Long) : Long {
var factor : Long := 60L;
return seconds(x * factor);
}

Related occurrence of the problem:

entity Counter { current :: Long (default=0) }

error:

setCurrent(java.lang.Long) in webdsl.generated.domain.Counter cannot be applied to (int)
this.setCurrent(0);

Another example:

entity Ent {
i :: Long
}
var e1 := Ent{ i := 5 }