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There is no good reason why array equality should work differently from list equality:
groovy> def list1 = [1,2,3,4]
groovy> def list2 = [1,2,3,4]
groovy> assert list1 == list2
groovy> int[] arr1 = [1,2,3,4]
groovy> int[] arr2 = [1,2,3,4]
groovy> assert arr1 == arr2
Exception thrown: java.lang.AssertionError: Expression: (arr1 == arr2). Values: arr1 = [I@bc608f, arr2 = [I@677b56
Equality for lists compares the values, equality for arrays does identity. This seems very counter-intuitive, especially if you are writing code that does not mind whether it gets arrays or lists, and is not "Groovy".
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Description
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There is no good reason why array equality should work differently from list equality:
groovy> def list1 = [1,2,3,4]
groovy> def list2 = [1,2,3,4]
groovy> assert list1 == list2
groovy> int[] arr1 = [1,2,3,4]
groovy> int[] arr2 = [1,2,3,4]
groovy> assert arr1 == arr2
Exception thrown: java.lang.AssertionError: Expression: (arr1 == arr2). Values: arr1 = [I@bc608f, arr2 = [I@677b56
Equality for lists compares the values, equality for arrays does identity. This seems very counter-intuitive, especially if you are writing code that does not mind whether it gets arrays or lists, and is not "Groovy".
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made changes - 20/Jan/07 03:27 PM
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Original Value |
New Value |
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Assignee
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Guillaume Laforge
[ guillaume
]
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made changes - 22/Jan/07 01:57 AM
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Assignee
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Paul King
[ paulk
]
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made changes - 09/Oct/07 09:08 AM
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Resolution
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Fixed
[ 1
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Fix Version/s
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1.1-rc-1
[ 13165
]
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Status
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Open
[ 1
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Resolved
[ 5
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made changes - 22/Nov/07 05:24 AM
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Status
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Resolved
[ 5
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Closed
[ 6
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Bug
Closed
Major
Array equality is not treated same as List equality
I have a patch for this which works for Object types but primitive arrays are stored by Groovy in their primitive form and I need to make the patch work with that before submitting.