[jruby-dev] [jira] (JRUBY-7013) JDK8 CHM incompatibility

[thedarkone (JIRA)]

thedarkone created JRUBY-7013 JDK8 CHM incompatibility Issue Type: Bug Assignee: Thomas E Enebo Created: 03/Dec/12 4:02 PM Description: The new CHM (named ConcurrentHashMapV8) implementation that is going to be used in JDK8 expects to be able to compareTo provided keys implementing the Comparable interface. The problematic CHMv8's code in question looks like this: https://github.com/thedarkone/thread_safe/blob/e9e51e24/ext/org/jruby/ext/thread_safe/jsr166e/ConcurrentHashMapV8.java#L836-L838 This runs into trouble with JRuby's compareTo implementation that expects <=> to be returning Numeric values, which is not the case for "incomparable" objects (a plain Object for example), that return {{nil}}s when compared. This results in {{TypeError}}s being thrown. The somewhat hairy solution is to coerce nil}}s coming from {{<=> into 0 in JRuby's compareTo. Project: JRuby Priority: Minor Reporter: thedarkone

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