Bug 851112 - Invalid conversion of java Boolean type to javascript Boolean type
Invalid conversion of java Boolean type to javascript Boolean type
Product: RHQ Project
Classification: Other
Component: CLI (Show other bugs)
Unspecified Unspecified
unspecified Severity unspecified (vote)
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Assigned To: Lukas Krejci
Mike Foley
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Reported: 2012-08-23 05:36 EDT by Libor Zoubek
Modified: 2015-11-01 19:43 EST (History)
2 users (show)

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Doc Type: Bug Fix
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Last Closed: 2012-08-24 04:00:03 EDT
Type: Bug
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Description Libor Zoubek 2012-08-23 05:36:59 EDT
Description of problem: If I try to convert instance of java.lang.Boolean class to javascript Boolean type I am getting invalid value, see example:

var my = java.lang.Boolean.FALSE;

var myjs = Boolean(my);
myjs; // is TRUE!!!

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Comment 1 Lukas Krejci 2012-08-24 04:00:03 EDT
This is a consequence of javascript's rules of Boolean conversion - http://www.w3schools.com/js/js_obj_boolean.asp.

Because the variable "my" is an object (not a raw boolean value) and it is not null, javascript initializes the myjs variable to true, just as it should according to the rules outlined in the above link.

I think this works as expected, even though it is confusing.

If you had:

var my = java.lang.Boolean.FALSE.booleanValue();

the rest of the code would have worked as expected.

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