Loic Guibert created LANG-1147:
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Summary: EnumUtils *BitVector issue with more than 32 values Enum
Key: LANG-1147
URL: https://issues.apache.org/jira/browse/LANG-1147
Project: Commons Lang
Issue Type: Bug
Components: lang.*
Affects Versions: 3.4
Reporter: Loic Guibert
Priority: Critical
In *EnumUtils* all _BitVector_ related methods fail in handling Enums with more
than 32 values.
This is due to a implicit _int_ -> _long_ conversion in generating the Enum
value _long_ mask.
*Bad code :* here *1* is an _int_ value so the *<<* operation is done into an
_int_ context and then, the result is converted to a _long_ value
{code}
long mask = 1 << 32; // -> mask = 1 and not 4294967296 (0x100000000)
{code}
*Good code :* here *1L* is a _long_ value so the *<<* operation is done into an
_long_ context
{code}
long mask = 1L << 32; // -> mask = 4294967296 (0x100000000)
{code}
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