JDK-6286011 : (se) DevPollSelectorProvider stops being the default on Solaris 10
  • Type: Bug
  • Component: core-libs
  • Sub-Component: java.nio
  • Affected Version: 1.4.2_08,5.0u6
  • Priority: P2
  • Status: Resolved
  • Resolution: Fixed
  • OS: generic,solaris_10
  • CPU: generic
  • Submitted: 2005-06-15
  • Updated: 2010-04-03
  • Resolved: 2005-08-10
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Other JDK 6
1.4.2_10Fixed 6 b47Fixed
Description
sun/nio/ch/DefaultSelectorProvider intends, I believe, to provide a PollSelectorProvider on Solaris versions earlier than 5.7, and give DevPollSelectorProvider otherwise.

It actually performs a lexical comparison of the os.version property, and therefore fails to select appropriately when the os.version is "5.10".
###@###.### 2005-06-15 16:12:34 GMT
Comments
WORK AROUND If you want to use /dev/poll but aren't getting it by default: java -Djava.nio.channels.spi.SelectorProvider=sun.nio.ch.DevPollSelectorProvider ###@###.### 2005-06-15 16:12:34 GMT
15-06-2005
EVALUATION The submitter is correct. This should be fixed in the earliest possible 5.0 update release. ###@###.### 2005-06-16 20:46:55 GMT
15-06-2005
SUGGESTED FIX In ws/j2se/src/solaris/classes/sun/nio/ch/DefaultSelectorProvider.java , change: String[] numbers = result.split("\\.", 0); if (numbers[1].compareTo("7") < 0) return new sun.nio.ch.PollSelectorProvider(); ... ...to: String[] numbers = result.split("\\.", 0); if ( Integer.parseInt(numbers[1]) < 7) return new sun.nio.ch.PollSelectorProvider(); ... However, if Solaris version 2.6 is no longer a relevant platform, the comparison can be dropped (it's still there in an early Java 1.6), and we can simply "return new sun.nio.ch.DevPollSelectorProvider();" without checking the property. (We will never be using PollSelectorProvider unless specified by the user in the property java.nio.channels.spi.SelectorProvider) ###@###.### 2005-06-15 16:12:34 GMT
15-06-2005