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Loic Guibert updated LANG-1147: ------------------------------- Description: 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} See PR#97 : https://github.com/apache/commons-lang/pull/97 was: 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} > 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} > See PR#97 : https://github.com/apache/commons-lang/pull/97 -- This message was sent by Atlassian JIRA (v6.3.4#6332)