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Type: Bug
Resolution: Fixed
Priority: P3
Fix Version/s: 1.4.2_10
Affects Version/s: 1.4.2_05
Component/s: core-libs
Labels:
- 5.0-na
- 6-na
- 7-na
- licbug

Subcomponent:
java.nio.charsets
Resolved In Build:
b02
CPU:

x86
OS:

windows_xp
Verification:
Verified

We have found worse performance of isSupported with "JISAutoDetect".

REPRODUCE :
   1) Compile the attached test program
   2) Launch "java isSupportedTest1"

  We can see the result of execution(elapse) time as follows.

  case5:24626
  case6:24545

  This is done in 1.4.2_05.

CONFIGURATION :
   OS : Windows XP (SP, Japanese)
   JRE : 1.4.2_05
   Mem: 384 [MB]
   MPU : Pentium IV 1.4[GHz]

==========================================================================

relates to

JDK-6348343 REGRESSION: ClassCastException in JISAutoDetect.java on 1.4.2_10

Resolved

JDK-5002890 (cs) Charset.isSupported is slow when invoked for different charsets

Resolved

JDK-4831163 Need NIO implementation for JISAutoDetect autodetecting charset

Resolved

Assignee:: Sathianantha Thilagar (Inactive)

Reporter:: Tadayuki Baba (Inactive)

Votes:: 0 Vote for this issue

Watchers:: 0 Start watching this issue

Created:: 2004-09-26 18:22

Updated:: 2010-02-16 21:49

Resolved:: 2005-09-02 12:02

Imported:: 15/Sep/12 1:27 PM

Indexed:: 17/Jul/12 10:59 AM

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