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Thread: Problems in setting classpath

  1. #1
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    Default Problems in setting classpath

    Hello,

    I am a newbie here. I have a problem and have no idea how to solve it. I am trying to run a code for extracting text from PDF document. In order to compile and run the code, I need to add PDFBox-0.7.3.jar to the classpath. I really hope anyone can help me how to solve this problem. Thanks in advance.

    The compilation is successfully done using command as below:

    >javac -classpath PDFBox-0.7.3.jar PDFTextParser.java

    Then, unfortunately, when I tried to run the code, it ended up to give me these errors. The command used as below:

    >java -classpath PDFBox-0.7.3.jar PDFTextParser testing.pdf testOut.txt

    Errors displayed
    Exception in thread "main" java.lang.NoClassDefFoundError: PDFTextParser
    Caused by: java.lang.ClassNotFoundException: PDFTextParser
    at java.net.URLClassLoader$1.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClassInternal(Unknown Source)
    Could not find the main class: PDFTextParser. Program will exit.

    I have tried another way by using the command as below without setting the classpath and the different type of errors appear.

    >java PDFTextParser testing.pdf testOut.txt

    Errors Displayed

    Parsing text from PDF file testing.pdf....
    Exception in thread "main" java.lang.NoClassDefFoundError: org/pdfbox/pdfparser/PDFParser
    at PDFTextParser.pdftoText(PDFTextParser.java:50)
    at PDFTextParser.main(PDFTextParser.java:107)
    Caused by: java.lang.ClassNotFoundException: org.pdfbox.pdfparser.PDFParser
    at java.net.URLClassLoader$1.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClassInternal(Unknown Source)
    ... 2 more
    Last edited by missyati; June 29th, 2009 at 03:43 AM.


  2. #2
    Member Truffy's Avatar
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    Default Re: Problems in setting classpath

    Quote Originally Posted by missyati View Post
    Hello,

    I am a newbie here. I have a problem and have no idea how to solve it. I am trying to run a code for extracting text from PDF document. In order to compile and run the code, I need to add PDFBox-0.7.3.jar to the classpath. I really hope anyone can help me how to solve this problem. Thanks in advance.

    The compilation is successfully done using command as below:

    >javac -classpath PDFBox-0.7.3.jar PDFTextParser.java

    Then, unfortunately, when I tried to run the code, it ended up to give me these errors. The command used as below:

    >java -classpath PDFBox-0.7.3.jar PDFTextParser testing.pdf testOut.txt

    Errors displayed
    Exception in thread "main" java.lang.NoClassDefFoundError: PDFTextParser
    Caused by: java.lang.ClassNotFoundException: PDFTextParser
    at java.net.URLClassLoader$1.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClassInternal(Unknown Source)
    Could not find the main class: PDFTextParser. Program will exit.

    I have tried another way by using the command as below without setting the classpath and the different type of errors appear.

    >java PDFTextParser testing.pdf testOut.txt

    Errors Displayed

    Parsing text from PDF file testing.pdf....
    Exception in thread "main" java.lang.NoClassDefFoundError: org/pdfbox/pdfparser/PDFParser
    at PDFTextParser.pdftoText(PDFTextParser.java:50)
    at PDFTextParser.main(PDFTextParser.java:107)
    Caused by: java.lang.ClassNotFoundException: org.pdfbox.pdfparser.PDFParser
    at java.net.URLClassLoader$1.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClassInternal(Unknown Source)
    ... 2 more
    hi missyati,

    welcome to the java programming forums.

    here's some site about setting the classpath:

    How to set the Java classpath
    Java How To ...: 6 Ways of Setting Java Classpath


    hope it can help you.

  3. #3
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    Default Re: Problems in setting classpath

    Thank you so much for the information. Actually, I have solved the problem. On the run command I've missed to put ; after .jar. Simple mistake

  4. #4
    Member Truffy's Avatar
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    Default Re: Problems in setting classpath

    Quote Originally Posted by missyati View Post
    Thank you so much for the information. Actually, I have solved the problem. On the run command I've missed to put ; after .jar. Simple mistake
    okay. Please mark as solved.

    Cheers,
    Truffy

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