Hm, beat me.
The code in question seems to be:
public RAMInputStream(RAMFile f) {
file = f;
length = file.length;
}
...which is called from:
/** Returns a stream reading an existing file. */
public final InputStream openFile(String name) {
RAMFile file = (RAMFile)files.get(name);
return new RAMInputStream(file);
}
Since 'files' is a Hashtable, neither the key nor the value (file) can
be null, even though the NPE in RAMInputStream constructor implies that
file was null.
Otis
--- petite_abeille <[EMAIL PROTECTED]> wrote:
> Hello,
>
> What could cause such weird exception?
>
> RAMInputStream.<init>: java.lang.NullPointerException
> java.lang.NullPointerException
> at
> org.apache.lucene.store.RAMInputStream.<init>(RAMDirectory.java:217)
> at
> org.apache.lucene.store.RAMDirectory.openFile(RAMDirectory.java:182)
> at org.apache.lucene.index.FieldInfos.<init>(FieldInfos.java:78)
> at
> org.apache.lucene.index.SegmentReader.<init>(SegmentReader.java:116)
> at
>
org.apache.lucene.index.IndexWriter.mergeSegments(IndexWriter.java:378)
> at org.apache.lucene.index.IndexWriter.optimize(IndexWriter.java:298)
> at
> org.apache.lucene.index.IndexWriter.addIndexes(IndexWriter.java:313)
>
> I don't know if this is a one off as I cannot reproduce this problem
> nor I have seen this before, but I thought I could as well ask.
>
> This is triggered by merging a RAMDirectory into a FSDirectory.
> Looking
> at the RAMDirectory source code, this exception seems to indicate
> that
> the file argument to the RAMInputStream constructor is null... how
> could that ever happen?
>
> Here is the code which triggers this weirdness:
>
> this.writer().addIndexes( new Directory[] { aRamDirectory } );
>
> The RAM writer is checked before invoking this code to make sure
> there
> is some content in the RAM directory:
>
> aRamWriter.docCount() > 0
>
> This has been working very reliably since the dawn of time, so I'm a
> little bit at loss as how to diagnose this weird exception...
>
> Any ideas?
>
> Thanks.
>
> Cheers,
>
> PA.
>
>
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