Out of memory when first time loading a graph.

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What steps will reproduce the problem?
1. Use the latest release of hdt-java
2. Use DBPedia 3.8 dataset and load it in a Jena Model
3. Execute any SPARQL query on the model (error occurs before the actual 
execution)

What is the expected output? What do you see instead?
A SPARQL Results

What version of the product are you using? On what operating system?
1.1 Linux 64 bit

Please provide any additional information below.
This is the error message:

Predicate Bitmap in 1 ms 15 us
Count predicates in 470 us
Predicate Bitmap in 5 sec 49 ms 283 us

java.lang.OutOfMemoryError: Java heap space
    at java.util.Arrays.copyOf(Arrays.java:2343)
    at org.rdfhdt.hdt.compact.sequence.SequenceLog64.resizeArray(SequenceLog64.java:154)
    at org.rdfhdt.hdt.compact.sequence.SequenceLog64.resize(SequenceLog64.java:255)
    at org.rdfhdt.hdt.triples.impl.PredicateIndexArray.generate(PredicateIndexArray.java:103)
    at org.rdfhdt.hdt.triples.impl.BitmapTriples.generateIndex(BitmapTriples.java:630)
    at org.rdfhdt.hdt.hdt.impl.HDTImpl.loadOrCreateIndex(HDTImpl.java:402)
    at org.rdfhdt.hdt.hdt.HDTManagerImpl.doMapIndexedHDT(HDTManagerImpl.java:63)
    at org.rdfhdt.hdt.hdt.HDTManager.mapIndexedHDT(HDTManager.java:93)

Original issue reported on code.google.com by lauren...@gmail.com on 3 Mar 2014 at 1:35