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  • Matina
    Junior Member
    • Jun 2012
    • 6

    #1

    fastQC bzip2 error

    Hi everyone,

    I'm trying to run fastqc on my samples and for some samples I get the error below. From what I understand there is a problem with the jbzip2 library. I downloaded the library separately and added it to my CLASSPATH (export CLASSPATH=$CLASSPATH://path/to/jbzip2-0.9.1.jar ) but it still doesn't work.

    The strange thing here is that even though i get this error message the program keeps running and gives me results at the end.

    This is the command i run

    fastqc /path/to/data/*fastq.bz2 -o QC/ -t 4 -q &

    Any ideas??

    java.io.IOException: Unexpected end of stream
    at org.itadaki.bzip2.BitInputStream.readBits(BitInputStream.java:133)
    at org.itadaki.bzip2.BZip2HuffmanStageDecoder.nextSymbol(BZip2HuffmanStageDecoder.java:159)
    at org.itadaki.bzip2.BZip2BlockDecompressor.decodeHuffmanData(BZip2BlockDecompressor.java:268)
    at org.itadaki.bzip2.BZip2BlockDecompressor.<init>(BZip2BlockDecompressor.java:474)
    at org.itadaki.bzip2.BZip2InputStream.initialiseNextBlock(BZip2InputStream.java:231)
    at org.itadaki.bzip2.BZip2InputStream.read(BZip2InputStream.java:129)
    at sun.nio.cs.StreamDecoder.readBytes(StreamDecoder.java:282)
    at sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:324)
    at sun.nio.cs.StreamDecoder.read(StreamDecoder.java:176)
    at java.io.InputStreamReader.read(InputStreamReader.java:184)
    at java.io.BufferedReader.fill(BufferedReader.java:153)
    at java.io.BufferedReader.readLine(BufferedReader.java:316)
    at java.io.BufferedReader.readLine(BufferedReader.java:379)
    at uk.ac.babraham.FastQC.Sequence.FastQFile.readNext(FastQFile.java:145)
    at uk.ac.babraham.FastQC.Sequence.FastQFile.next(FastQFile.java:105)
    at uk.ac.babraham.FastQC.Analysis.AnalysisRunner.run(AnalysisRunner.java:76)
    at java.lang.Thread.run(Thread.java:701)
  • TiborNagy
    Senior Member
    • Mar 2010
    • 329

    #2
    Adding jar files to the CLASSPATH won't help, because the launch script (fastqc) overwrite it. You can edit it inside fastqc. But my guess is the problem not this library, but the input file. Can you decompress it with command line utilities?

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