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From Eric Fixler <...@smete.org>
Subject Re: NullPointerException on writer.close()
Date Tue, 26 Feb 2002 20:13:26 GMT
I was hoping this mail didn't go the list -- the bug was totally mine 
and it was really stupid!  I had high hopes that since I sent it from 
the wrong e-mail account, it would get spam filtered and  I wouldn't be 
exposed; oh well.

There was an extra index.close() in a finally block that should've been 
in a catch block.  I've been  a bit overworked and was staring at this 
for about 2 hours without seeing it -- I doscovered i about 2 seconds 
after sending the mail.

Anyway, thanks and sorry...

eric




On Tuesday, February 26, 2002, at 11:47  AM, Otis Gospodnetic wrote:

> Eric,
>
> Please send the exception stack trace with line numbers, it would help
> a great deal.
>
> Otis
>
>
> --- Eric Fixler <fix@idiom.com> wrote:
>> Hello.  I'm pretty new to Lucene.  I've had good luck so far, but o
>> bug
>> just cropped up in the code I use to make indexes.  I'm using rc4 and
>>
>> (sorry) did not change the code; I just noticed my indexes failing...
>>
>> anyway, here's the relevant segment...I know that the file path is
>> valid, and files _are_ getting created updated there -- I checked the
>>
>> timestamps.
>>
>> Also, I'm confused about the create boolean in the IndexWriter
>> constructor -- should it be true for false when updating existing
>> entries in an
>> existing index.
>>
>> public void makeIndex() throws IOException, NestedException {
>> 		this.logDebug("Creating index in " + this.getIndexFileName());
>> 		IndexWriter writer = new
>> IndexWriter(this.getIndexFileName(),new StandardAnalyzer(), false);
>> //I
>> was using 'true' changed to false
>> 		//for debugging, to no effect
>> 		// <cut>full text below, for those interested</cut>
>> 				
>> 		try {
>> 			for (int i=0; i < projects.length; i++) {
>> 				this.logDebug("Adding project " +
>> projects[i].getId() + " [" +  projects[i].getDisplayName() + "] to
>> index");
>> 				Document d = this.makeProjectDocument(projects[i]);
>> 				writer.addDocument(d);
>> 				this.logDebug("Done adding project " +
>> projects[i].getId() + " to index.");
>> 			
>> 			}
>> 			this.logDebug("Done processing vsp information for lucene
>> search index, about to finalize index.");
>> 		} catch (RuntimeException re) {
>> 			this.logError("Unexpected error writing index!", re);
>> 			throw(re);
>> 		} finally {
>> 			writer.optimize();
>> 			this.logDebug("index optimized...closing");
>> 			writer.close(); //*** THIS IS WHERE THE EXCEPTION GETS THROWN
>> 			this.logDebug("Index closed; done writing lucene index.");
>> 		}
>> 	}
>>
>>
>> I looked at the the IndexWriter.close() method, and it seems like
>> ramDirectory, directory or writeLock need to be null o make this
>> happen.
>>
>> Anyway, any advice would be greatly appreciated.
>>
>> best
>> eric
>>
>>
>> -- full method listing
>> public void makeIndex() throws IOException, NestedException {
>> 		this.logDebug("Creating index in " + this.getIndexFileName());
>> 		IndexWriter writer = new
>> IndexWriter(this.getIndexFileName(),new StandardAnalyzer(), false);
>> 		//get projects/activities, make docs for each...
>> 		Project[] projects = null;
>> 		try {
>> 			projects = this.getProjectService().getProjectsById(null);
>> 		} catch (Exception e) {
>> 			String msg = "Can't get projects for indexing, aborting";
>> 			this.logError(msg,e);
>> 			throw new NestedException(msg,e);
>> 		} finally {
>> 			writer.close();
>> 		}
>> 		
>> 		try {
>> 			for (int i=0; i < projects.length; i++) {
>> 				//Project project = projects[i];
>> 				this.logDebug("Adding project " +
>> projects[i].getId() + " [" +  projects[i].getDisplayName() + "] to
>> index");
>> 				Document d = this.makeProjectDocument(projects[i]);
>> 				writer.addDocument(d);
>> 				this.logDebug("Done adding project " +
>> projects[i].getId() + " to index.");
>> 			
>> 			}
>> 			this.logDebug("Done processing vsp information for lucene
>> search index, about to finalize index.");
>> 		} catch (RuntimeException re) {
>> 			this.logError("Unexpected error writing index!", re);
>> 			throw(re);
>> 		} finally {
>> 			writer.optimize();
>> 			this.logDebug("index optimized...closing");
>> 			writer.close();
>> 			this.logDebug("Index closed; done writing lucene index.");
>> 		}
>> 	}
>>
>>
>> --
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>
>
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