title: Jar file gives java.lang.NoClassDefFoundError
body: <p>I have an Eclipse project that runs fine when I run it in Eclipse. I have created a Jar file in Eclipse. But when I run it using the following command:</p>
  
  <pre><code>D:\Java\projects\fetch&gt;java -Xss1000m -XX:-UseGCOverheadLimit -Xmx5048m -jar bin\fetch.jar
  </code></pre>
  
  <p>I get the following error:</p>
  
  <pre><code>Exception in thread "main" java.lang.NoClassDefFoundError: info/monitorenter/cpdetector/io/ICodepageDetector
      at java.lang.Class.getDeclaredMethods0(Native Method)
      at java.lang.Class.privateGetDeclaredMethods(Unknown Source)
      at java.lang.Class.getMethod0(Unknown Source)
      at java.lang.Class.getMethod(Unknown Source)
      at sun.launcher.LauncherHelper.getMainMethod(Unknown Source)
      at sun.launcher.LauncherHelper.checkAndLoadMain(Unknown Source)
  Caused by: java.lang.ClassNotFoundException: info.monitorenter.cpdetector.io.ICodepageDetector
      at java.net.URLClassLoader$1.run(Unknown Source)
      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)
      ... 6 more
  </code></pre>
  
  <p>The contents of the jar are:</p>
  
  <pre><code>com (folder)
  dist (folder)
  doc (folder)
  lib  (folder, contains all the jars, including the cpdetector jar)
  META-INF (folder)
  resources (folder)
  sources (folder)
  .classpath (file)
  .project (file)
  hibernate.cfg.xml (file)
  log4j.xml (file)
  </code></pre>
  
  <p>The contents of the .classpath file are:</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="UTF-8"?&gt;
  &lt;classpath&gt;
  &lt;classpathentry kind="src" path="src"/&gt;
  &lt;classpathentry kind="lib" path="D:/Java/projects/boilerpipe-master/target/boilerpipe-core-1.2.2.jar"/&gt;
  &lt;classpathentry kind="lib" path="D:/Java/projects/boilerpipe-master/target/boilerpipe-core-1.2.2-jar-with-dependencies.jar"/&gt;
  &lt;classpathentry kind="lib" path="lib/jsoup-1.7.2.jar"/&gt;
  &lt;classpathentry kind="lib" path="lib/ahocorasick-1.4-SNAPSHOT-all.jar"/&gt;
  &lt;classpathentry kind="lib" path="lib/ahocorasick-1.4-SNAPSHOT.jar"/&gt;
  &lt;classpathentry kind="lib" path="lib/antlr-3.4-complete.jar"/&gt;
  &lt;classpathentry kind="lib" path="lib/chardet.jar"/&gt;
  &lt;classpathentry kind="lib" path="lib/commons-fileupload-1.2.2.jar"/&gt;
  &lt;classpathentry kind="lib" path="lib/commons-httpclient-3.1.jar"/&gt;
  &lt;classpathentry kind="lib" path="lib/commons-io-2.4.jar"/&gt;
  &lt;classpathentry kind="lib" path="lib/commons-lang-2.6.jar"/&gt;
  &lt;classpathentry kind="lib" path="lib/commons-lang3-3.1.jar"/&gt;
  &lt;classpathentry kind="lib" path="lib/commons-validator-1.4.0.jar"/&gt;
  &lt;classpathentry kind="lib" path="lib/horrorss-2.2.0.jar"/&gt;
  &lt;classpathentry kind="lib" path="lib/jackson-core-2.1.4.jar"/&gt;
  &lt;classpathentry kind="lib" path="lib/jackson-core-asl-1.9.12.jar"/&gt;
  &lt;classpathentry kind="lib" path="lib/jackson-mapper-asl-1.9.12.jar"/&gt;
  &lt;classpathentry kind="lib" path="lib/jdom-1.1.3.jar"/&gt;
  &lt;classpathentry kind="lib" path="lib/jdom-2.0.4.jar"/&gt;
  &lt;classpathentry kind="lib" path="lib/jericho-html-3.3.jar"/&gt;
  &lt;classpathentry kind="lib" path="lib/jline.jar"/&gt;
  &lt;classpathentry kind="lib" path="lib/joda-time-2.2.jar"/&gt;
  &lt;classpathentry kind="lib" path="lib/lucene-analyzers-3.6.2.jar"/&gt;
  &lt;classpathentry kind="lib" path="lib/lucene-core-3.6.2.jar"/&gt;
  &lt;classpathentry kind="lib" path="lib/nekohtml-1.9.13.jar"/&gt;
  &lt;classpathentry kind="lib" path="lib/rome-1.0.jar"/&gt;
  &lt;classpathentry kind="lib" path="lib/tika-app-1.3.jar"/&gt;
  &lt;classpathentry kind="lib" path="lib/xerces-2.9.1.jar"/&gt;
  &lt;classpathentry kind="lib" path="lib/xstream-1.4.4.jar"/&gt;
  &lt;classpathentry kind="lib" path="lib/hibernate-release-4.2.0.Final/envers/hibernate-envers-4.2.0.Final.jar"/&gt;
  &lt;classpathentry kind="lib" path="lib/hibernate-release-4.2.0.Final/jpa/hibernate-entitymanager-4.2.0.Final.jar"/&gt;
  &lt;classpathentry kind="lib" path="lib/hibernate-release-4.2.0.Final/required/antlr-2.7.7.jar"/&gt;
  &lt;classpathentry kind="lib" path="lib/hibernate-release-4.2.0.Final/required/dom4j-1.6.1.jar"/&gt;
  &lt;classpathentry kind="lib" path="lib/hibernate-release-4.2.0.Final/required/hibernate-commons-annotations-4.0.1.Final.jar"/&gt;
  &lt;classpathentry kind="lib" path="lib/hibernate-release-4.2.0.Final/required/hibernate-core-4.2.0.Final.jar" sourcepath="C:/Users/Nick/.m2/repository/org/hibernate/hibernate-core/4.2.0.Final/hibernate-core-4.2.0.Final-sources.jar"/&gt;
  &lt;classpathentry kind="lib" path="lib/hibernate-release-4.2.0.Final/required/hibernate-jpa-2.0-api-1.0.1.Final.jar"/&gt;
  &lt;classpathentry kind="lib" path="lib/hibernate-release-4.2.0.Final/required/javassist-3.15.0-GA.jar"/&gt;
  &lt;classpathentry kind="lib" path="lib/hibernate-release-4.2.0.Final/required/jboss-logging-3.1.0.GA.jar"/&gt;
  &lt;classpathentry kind="lib" path="lib/hibernate-release-4.2.0.Final/required/jboss-transaction-api_1.1_spec-1.0.0.Final.jar"/&gt;
  &lt;classpathentry kind="lib" path="lib/hibernate-release-4.2.0.Final/optional/ehcache/ehcache-core-2.4.3.jar"/&gt;
  &lt;classpathentry kind="lib" path="lib/hibernate-release-4.2.0.Final/optional/ehcache/hibernate-ehcache-4.2.0.Final.jar"/&gt;
  &lt;classpathentry kind="lib" path="lib/hibernate-release-4.2.0.Final/optional/ehcache/slf4j-api-1.6.1.jar"/&gt;
  &lt;classpathentry kind="lib" path="C:/java/tomcat6/tomcat 6.0.35/lib/mysql-connector-java-5.1.22-bin.jar"/&gt;
  &lt;classpathentry kind="lib" path="lib/htmlcleaner-2.4.jar"/&gt;
  &lt;classpathentry kind="lib" path="lib/freebase-java-1.0.0.jar"/&gt;
  &lt;classpathentry kind="lib" path="lib/javax.mail.jar"/&gt;
  &lt;classpathentry kind="lib" path="lib/opencsv-2.3.jar"/&gt;
  &lt;classpathentry kind="lib" path="lib/google-api-client-1.14.1-beta.jar"/&gt;
  &lt;classpathentry kind="lib" path="lib/google-http-client-1.14.1-beta.jar"/&gt;
  &lt;classpathentry kind="lib" path="lib/json-simple-1.1.1.jar"/&gt;
  &lt;classpathentry kind="lib" path="lib/json-smart-1.1.jar"/&gt;
  &lt;classpathentry kind="lib" path="lib/javatuples-1.2.jar"/&gt;
  &lt;classpathentry kind="lib" path="lib/json-path-0.8.1.jar" sourcepath="C:/Users/Nick/.m2/repository/com/jayway/jsonpath/json-path/0.8.1/json-path-0.8.1-sources.jar"/&gt;
  &lt;classpathentry kind="lib" path="lib/json-20090211.jar"/&gt;
  &lt;classpathentry kind="lib" path="lib/lucene-4.3.0/core/lucene-core-4.3.0.jar"/&gt;
  &lt;classpathentry kind="lib" path="lib/lucene-4.3.0/suggest/lucene-suggest-4.3.0.jar"/&gt;
  &lt;classpathentry kind="lib" path="lib/solr-core-4.2.1.jar"/&gt;
  &lt;classpathentry kind="lib" path="lib/solr-solrj-4.2.1.jar"/&gt;
  &lt;classpathentry kind="lib" path="lib/quartz-all-2.1.7.jar"/&gt;
  &lt;classpathentry kind="lib" path="lib/simplelatlng-1.2.0.jar"/&gt;
  &lt;classpathentry kind="lib" path="lib/obsidian.jar"/&gt;
  &lt;classpathentry kind="lib" path="lib/CareerjetAPIClient.jar"/&gt;
  &lt;classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/jre6"/&gt;
  &lt;classpathentry kind="lib" path="lib/goose-2.1.22-jar-with-dependencies.jar"/&gt;
  &lt;classpathentry kind="con" path="com.ateji.bldt.ui.ATEJILIB_CONTAINER"/&gt;
  &lt;classpathentry kind="lib" path="lib/commons-lang-2.4.jar"/&gt;
  &lt;classpathentry kind="lib" path="lib/commons-logging-1.0.4.jar"/&gt;
  &lt;classpathentry kind="lib" path="lib/httpclient-4.2.3.jar"/&gt;
  &lt;classpathentry kind="lib" path="lib/httpcore-4.2.2.jar"/&gt;
  &lt;classpathentry kind="lib" path="lib/httpmime-4.2.3.jar"/&gt;
  &lt;classpathentry kind="lib" path="lib/commons-codec-1.2.jar"/&gt;
  &lt;classpathentry kind="lib" path="lib/commons-math3-3.2.jar" sourcepath="sources"/&gt;
  &lt;classpathentry kind="lib" path="lib/guava-14.0.1.jar"/&gt;
  &lt;classpathentry kind="lib" path="lib/cpdetector_1.0.10.jar"/&gt;
  &lt;classpathentry kind="output" path="bin"/&gt;
  &lt;/classpath&gt;
  </code></pre>
  
  <p>I have already googled  java.lang.NoClassDefFoundError , and have already tried a lot of stuff but none of them work. All suggestions are welcome. Thank you.</p>