Michael McCandless created LUCENE-5844:
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             Summary: ArrayUtil.grow should not pretend you can actually 
allocate array[Integer.MAX_VALUE]
                 Key: LUCENE-5844
                 URL: https://issues.apache.org/jira/browse/LUCENE-5844
             Project: Lucene - Core
          Issue Type: Bug
          Components: core/other
            Reporter: Michael McCandless
            Assignee: Michael McCandless
             Fix For: 5.0, 4.10


Today if the growth it wants would exceed Integer.MAX_VALUE, it returns 
Integer.MAX_VALUE, but you can't actually allocate arrays this large; the 
actual limit is JVM dependent and varies across JVMs ...

It would be nice if we could somehow "introspect" the JVM to find out what its  
actual limit is and use that.  
http://stackoverflow.com/questions/3038392/do-java-arrays-have-a-maximum-size 
seems to imply that using Integer.MAX_VALUE - 8 may be "safe" (it's what 
ArrayList.java apparently uses).



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