NPE crash in case of out of memory
----------------------------------
Key: LUCENE-1144
URL: https://issues.apache.org/jira/browse/LUCENE-1144
Project: Lucene - Java
Issue Type: Bug
Components: Index
Affects Versions: 2.3
Reporter: Daniel Naber
The attached class makes Lucene crash with an NPE when starting it with
-Xmx10M, although there's probably an OutOfMemory problem. The stacktrace:
Exception in thread "main" java.lang.NullPointerException
at java.util.Arrays.fill(Unknown Source)
at
org.apache.lucene.index.DocumentsWriter$ByteBlockPool.reset(DocumentsWriter.java:2873)
at
org.apache.lucene.index.DocumentsWriter$ThreadState.resetPostings(DocumentsWriter.java:637)
at
org.apache.lucene.index.DocumentsWriter.resetPostingsData(DocumentsWriter.java:458)
at
org.apache.lucene.index.DocumentsWriter.abort(DocumentsWriter.java:423)
at
org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:2433)
at
org.apache.lucene.index.DocumentsWriter.addDocument(DocumentsWriter.java:2397)
at
org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1445)
at
org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:1424)
at LuceneCrash.myrun(LuceneCrash.java:32)
at LuceneCrash.main(LuceneCrash.java:19)
The documents are quite big (some hundred KB each), I cannot attach them but I
can send them via private mail if needed. The crash happens the first time
reset() is called, after indexing 10 documents. I assume the bug is just that
the error is misleading, there maybe should be an OOM error.
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