Menu

Java IO Exception which running GAJET

Help
nitrousfiz
2007-07-05
2013-04-17
  • nitrousfiz

    nitrousfiz - 2007-07-05

    Dear Mikhail Vladimirov,

    My name is Fayezin, I am currently studying MSc Advanced Software Engineering at King's College London. My project involves Testing Aspect Oriented Software using OO Testing Tools.

    I want to use GAJET for this purpose in my project. I have downladed it from the website, but cant seem to get it to work. I can successfully instrument the test classes with Emma, but when I run GAJET, it throws an exception while reading the Metadata file. The exception is given below-

    java.io.EOFException
            at java.io.DataInputStream.readFully(DataInputStream.java:178)
            at java.io.DataInputStream.readUTF(DataInputStream.java:565)
            at java.io.DataInputStream.readUTF(DataInputStream.java :522)
            at com.vladium.emma.data.MetaData.readExternal(MetaData.java:240)
            at com.vladium.emma.data.DataFactory.readEntry(DataFactory.java:770)
            at com.vladium.emma.data.DataFactory.mergeload( DataFactory.java:461)
            at com.vladium.emma.data.DataFactory.load(DataFactory.java:56)
            at net.sf.gajet.Gajet.loadMetadata(Gajet.java:318)
            at net.sf.gajet.Gajet.work(Gajet.java:69)
            at net.sf.gajet.cli.Main.<init>(Main.java:44)
            at net.sf.gajet.cli.Main.main(Main.java:53)
    Exception in thread "main" java.io.EOFException
            at java.io.DataInputStream.readFully(DataInputStream.java :178)
            at java.io.DataInputStream.readUTF(DataInputStream.java:565)
            at java.io.DataInputStream.readUTF(DataInputStream.java:522)
            at com.vladium.emma.data.MetaData.readExternal(MetaData.java :240)
            at com.vladium.emma.data.DataFactory.readEntry(DataFactory.java:770)
            at com.vladium.emma.data.DataFactory.mergeload(DataFactory.java:461)
            at com.vladium.emma.data.DataFactory.load(DataFactory.java :56)
            at net.sf.gajet.Gajet.loadMetadata(Gajet.java:318)
            at net.sf.gajet.Gajet.work(Gajet.java:69)
            at net.sf.gajet.cli.Main.<init>(Main.java:44)
            at net.sf.gajet.cli.Main.main (Main.java:53)

    Kindly direct me how to get past this problem so that I can get the program up and running.

    Looking forward to your reply.

    Regards,

    Fayezin Islam
    MSc Advanced Software Engineering
    King's College London
    Email: nitrousfiz@googlemail.com

     
    • Mikhail Vladimirov

      This is because GAJET is trying to load metadata file created with original (non-modified) version of EMMA.  You should use modified EMMA to instrument sour class files.  Modified EMMA is contained inside GAJET distribution as gajet-emma-<version>.jar file.  Under MS Windows you can use gajet-emma-<version>.bat file to run it conveniently.

      Metadata file create with modified EMMA starts with "GAMA" magic string, while original EMMA uses "EMMA" magic string, so you can always determine whether your metadata was created with modified EMMA or not.

       

Log in to post a comment.