because on windows 32bit at least, -client is still the default on
most jres out there.

i realize people don't care about -client, but i will police
foo[].clone() / arrays.copyOf etc to prevent problems.

There are comments about this stuff on the relevant bug reports
(oracle's site is down, sorry) linked to this issue.
https://issues.apache.org/jira/browse/LUCENE-2674

Sorry, I don't think we should use foo[].clone() / arrays.copyOf, I
think we should always use arraycopy.

On Thu, Jun 30, 2011 at 8:55 AM, Simon Willnauer
<simon.willna...@googlemail.com> wrote:
> hmm are you concerned about the extra Math.min that happens in the
> copyOf method?
> I don't how that relates to "intrinsic" and java 1.7
>
> I don't have strong feelings here just checking if you mix something
> up in the comment you put there... I am happy to keep the old and now
> current code
>
> simon
>
> On Thu, Jun 30, 2011 at 2:42 PM,  <rm...@apache.org> wrote:
>> Author: rmuir
>> Date: Thu Jun 30 12:42:17 2011
>> New Revision: 1141510
>>
>> URL: http://svn.apache.org/viewvc?rev=1141510&view=rev
>> Log:
>> LUCENE-3239: remove use of slow Arrays.copyOf
>>
>> Modified:
>>    
>> lucene/dev/trunk/modules/facet/src/java/org/apache/lucene/util/UnsafeByteArrayOutputStream.java
>>
>> Modified: 
>> lucene/dev/trunk/modules/facet/src/java/org/apache/lucene/util/UnsafeByteArrayOutputStream.java
>> URL: 
>> http://svn.apache.org/viewvc/lucene/dev/trunk/modules/facet/src/java/org/apache/lucene/util/UnsafeByteArrayOutputStream.java?rev=1141510&r1=1141509&r2=1141510&view=diff
>> ==============================================================================
>> --- 
>> lucene/dev/trunk/modules/facet/src/java/org/apache/lucene/util/UnsafeByteArrayOutputStream.java
>>  (original)
>> +++ 
>> lucene/dev/trunk/modules/facet/src/java/org/apache/lucene/util/UnsafeByteArrayOutputStream.java
>>  Thu Jun 30 12:42:17 2011
>> @@ -2,7 +2,6 @@ package org.apache.lucene.util;
>>
>>  import java.io.IOException;
>>  import java.io.OutputStream;
>> -import java.util.Arrays;
>>
>>  /**
>>  * Licensed to the Apache Software Foundation (ASF) under one or more
>> @@ -72,7 +71,11 @@ public class UnsafeByteArrayOutputStream
>>   }
>>
>>   private void grow(int newLength) {
>> -    buffer = Arrays.copyOf(buffer, newLength);
>> +    // It actually should be: (Java 1.7, when its intrinsic on all machines)
>> +    // buffer = Arrays.copyOf(buffer, newLength);
>> +    byte[] newBuffer = new byte[newLength];
>> +    System.arraycopy(buffer, 0, newBuffer, 0, buffer.length);
>> +    buffer = newBuffer;
>>   }
>>
>>   /**
>>
>>
>>
>
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