1.4.3 and 64bit support? out of memory??

[zzzzz shalev]

hi all,
   
  i've been trying to load a 6GB index on linux (16GB RAM) but am having no 
success.
   
  i wrote a program that allocates memory and it was able to allocate as much 
RAM as i requested (stopped at 12GB)
   
  however 
   
  i am recieving the following stack trace:
   
  JVMDUMP013I Processed Dump Event "uncaught", detail 
"java/lang/OutOfMemoryError".
Exception in thread "main" java.lang.OutOfMemoryError
        at 
org.apache.lucene.index.TermInfosReader.readIndex(TermInfosReader.java:82)
        at 
org.apache.lucene.index.TermInfosReader.<init>(TermInfosReader.java:45)
        at 
org.apache.lucene.index.SegmentReader.initialize(SegmentReader.java:112)
        at org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:89)
        at org.apache.lucene.index.IndexReader$1.doBody(IndexReader.java:118)
        at org.apache.lucene.store.Lock$With.run(Lock.java:109)
        at org.apache.lucene.index.IndexReader.open(IndexReader.java:111)
        at org.apache.lucene.index.IndexReader.open(IndexReader.java:106)
        at org.apache.lucene.search.IndexSearcher.<init>(IndexSearcher.java:43)

   
  when trying to load the indexes
   
  any ideas????
   
  thanks in advance,
   
   
   

                
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