[GROOVY-4841] Null BigDecimals converted to String with add operator

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.7.10
• Fix Version/s: 2.0-beta-3
• Labels: breaking
• Assignee: Jochen Theodorou
• Reporter: Mike Cantrell
• Created: 24/May/11 15:15
• Updated: 07/Feb/12 06:32
• Resolved: 07/Feb/12 06:32

Description

Using the add operator on null BigDecimal objects concatenates them as Strings

  @Test
  void testNullBigDecimalAddOperator() {
    BigDecimal a = null
    BigDecimal b = null
    assert null == a+b
  }

Assertion failed: 

assert null == a+b
            |  |||
            |  ||null
            |  |nullnull
            |  null
            false

I would expect a NullPointer would be thrown as the divide operator behaves.

  @Test(expected=NullPointerException)
  void testNullBigDecimalDivOperator() {
    BigDecimal a = null
    BigDecimal b = null
    assert null == a/b
  }

java.lang.NullPointerException: Cannot invoke method div() on null object