DataTools.castValue() returns incorrect value for "false"

[joe.parks@hyperproductive.com]

1. SmartClient Version: v8.3p_2013-02-06/Enterprise Deployment (built 2013-02-06)
The same result occurs with the 4.0d build from 2013-05-30

2. N/A (Server-side), but IE 9 and Firefox 21.0

3. Logs do not indicate any error

4. no problem processing the response

5. no error

6. JUnit test cases:

/**
 * Test Functionality of the isomorphic castValue method.
 */
public class DataToolsCastValue {
    @Test
    public void castFalseValue() throws Exception {
        final String falseString = "false";
        final Boolean output = (Boolean) DataTools.castValue(falseString, Boolean.class);
        assertFalse("'false' is not cast to false.", output);  // fails
    }

    @Test
    public void castTrueValue() throws Exception {
        final String trueString = "true";
        final Boolean output = (Boolean) DataTools.castValue(trueString, Boolean.class);
        assertTrue("'true' is not cast to true.", output);  // passes
    }
}

This incorrect behavior is causing some hibernate queries to fail, when searching for objects containing an attribute of type boolean that are set to false.

[Isomorphic]

This is exactly what the method is documented to do:

If targetType is Boolean and passed value is instance of String then "true", "t", "yes" and "y" (ignoring case) converted to true; any other string converted to false

From here.

It's not clear how your code ends up relying on "false" -> false conversion in the first place; possibly that's what to correct. But if you need to rely on this conversion and prefer a different conversion behavior you'll need to add it yourself, because we won't be changing the documented behavior of this method.

[joe.parks@hyperproductive.com]

The test case shows that the behavior is not as documented. The String, "false", is not in the set {"true", "t", "yes", "y"}, so it should be converted to false.
The assertion in the test case fails: the value "false" is not converted to false; it is converted to true.

[joe.parks@hyperproductive.com]

Looking at the bytecode, it seems like the code is not converting this set to true: {"t", "y", "true", "yes"}. Instead, it's converting *this* set to true: {"t", "y", "true", "false"}.
I updated the test case to verify this:

/**
 * Test Functionality of the isomorphic castValue method.
 */
public class DataToolsCastValue {
    @Test
    public void castFalseValue() throws Exception {
        final String falseString = "false";
        final Boolean output = (Boolean) DataTools.castValue(falseString, Boolean.class);
        assertFalse("'false' is not cast to false.", output);  // fails
    }

    @Test
    public void castTrueValue() throws Exception {
        final String trueString = "true";
        final Boolean output = (Boolean) DataTools.castValue(trueString, Boolean.class);
        assertTrue("'true' is not cast to true.", output);  // passes
    }

    @Test
    public void castYesValue() throws Exception {
        final String yesString = "yes";
        final Boolean output = (Boolean) DataTools.castValue(yesString, Boolean.class);
        assertTrue("'yes' is not cast to true.", output);  // fails
    }
}

[alius]

Hi,

Thanks. Corrected.
You can test it with next nightly build.

Regards,
Alius

[joe.parks@hyperproductive.com]

Tests pass now. Thanks.