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Is there any way I can redefine asBoolean for core class in Groovy? I tried
Number.metaClass.asBoolean = {false}
While it works for non-Groovy classes I can’t find how to make the same trick for Number or any other predefined class.
I could reproduce your problem when executing the script in the GroovyConsole. However, when executed as a
.groovyfile on the command line, the metaClass change works as expected.