Funky number parsing surprises in Commons-Lang NumberUtils (used by json-lib)

NumberFunkyTest.java

import static org.hamcrest.Matchers.equalTo;
import static org.hamcrest.Matchers.is;
import static org.hamcrest.Matchers.not;
import static org.junit.Assert.assertThat;

import org.apache.commons.lang.math.NumberUtils;
import org.junit.Test;

public class NumberFunkyTest {
    @Test public void testingSomeOddParsingBehaviourFoundEarlier() {
        assertThat(0.99962887, is(equalTo(Double.valueOf("0.99962887"))));
        assertThat(0.99962887, is(not(equalTo(NumberUtils.createNumber("0.99962887")))));
        assertThat(0.99962884f, is(equalTo(NumberUtils.createNumber("0.99962887"))));
        assertThat(0.99962887, is(equalTo(NumberUtils.createNumber("0.99962887d"))));
    }
}