[QPID-2766] string to double conversion results in questionable precision

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 0.6
• Fix Version/s: 0.7
• Component/s: JMS AMQP 0-x
• Assignee: Rajith Muditha Attapattu
• Reporter: Rajith Muditha Attapattu
• Created: 28/Jul/10 02:15
• Updated: 14/Mar/17 20:07
• Resolved: 18/Oct/10 22:08

Description

The following test:

public void testString2Double_1() {
try

{ Message message = senderSession.createMessage(); message.setStringProperty("pi", "3.14159"); assertEquals(3.14159, message.getDoubleProperty("pi"),0); }

catch (JMSException e)

{ fail(e); }

}

Fails with:

junit.framework.AssertionFailedError: expected:<3.14159> but
was:<3.141590118408203>

This appears to be because the client ends up doing the equivalent of
Double.valueOf(Float.valueOf(value)) when doing string to double conversion
rather than the more direct Double.valueOf(value).