[jira] [Created] (OFBIZ-9562) [FB] Package org.apache.ofbiz.base.concurrent

[Nicolas Malin (Jira)]

Dennis Balkir created OFBIZ-9562:
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             Summary: [FB] Package org.apache.ofbiz.base.concurrent
                 Key: OFBIZ-9562
                 URL: https://issues.apache.org/jira/browse/OFBIZ-9562
             Project: OFBiz
          Issue Type: Sub-task
          Components: base
    Affects Versions: Trunk
            Reporter: Dennis Balkir
            Priority: Minor


ExecutionPool.java:122, EQ_COMPARETO_USE_OBJECT_EQUALS
Eq: org.apache.ofbiz.base.concurrent.ExecutionPool$Pulse defines compareTo(Object) and uses Object.equals()

This class defines a compareTo(...) method but inherits its equals() method from java.lang.Object. Generally, the value of compareTo should return zero if and only if equals returns true. If this is violated, weird and unpredictable failures will occur in classes such as PriorityQueue. In Java 5 the PriorityQueue.remove method uses the compareTo method, while in Java 6 it uses the equals method.

From the JavaDoc for the compareTo method in the Comparable interface:

It is strongly recommended, but not strictly required that (x.compareTo(y)==0) == (x.equals(y)). Generally speaking, any class that implements the Comparable interface and violates this condition should clearly indicate this fact. The recommended language is "Note: this class has a natural ordering that is inconsistent with equals."



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