I have always been coding from NetBeans interface, but I would like to learn to do it from ubuntu terminal, which I can hardly use.
The file I want to run is TabRemover.java. I reach its directory from the terminal and write:
simone#Pargolo:~/NetBeansProjects/TabRemover/src/tabremover$ java TabRemover
But I get the following error:
Exception in thread "main" java.lang.NoClassDefFoundError: TabRemover (wrong name: tabremover/TabRemover)
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:787)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:447)
at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:423)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:480)
What should I do to run a Java program from Ubuntu terminal? I saw there are different threads on the topic in the web, but they do not look like helping...
Any suggestion?
You need set classpath -cp option in comandline
and off course you need compile it before with javac
$cd ~/NetBeansProjects/TabRemover/src
$java -classpath . org.tabremover.TabRemover
-classpath and -cp — give save effect.
Please check that TabRemover.java located in ~/NetBeansProjects/TabRemover/src/org/tabremover/TabRemover.java
org/tabremover should be equivalent package name org.tabremover
Related
I'm trying to build this project from github:
https://github.com/tomakehurst/wiremock
The thing is, when I download it and run gradle build, I don't think all the required jar files are being loaded onto the class path. I get this error when I actually try to run the thing:
Exception in thread "main" java.lang.NoClassDefFoundError: joptsimple/OptionParser
at com.github.tomakehurst.wiremock.standalone.CommandLineOptions.<init>(CommandLineOptions.java:75)
at com.github.tomakehurst.wiremock.standalone.WireMockServerRunner.run(WireMockServerRunner.java:49)
at com.github.tomakehurst.wiremock.standalone.WireMockServerRunner.main(WireMockServerRunner.java:110)
Caused by: java.lang.ClassNotFoundException: joptsimple.OptionParser
at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
... 3 more
What gives? Isn't grade supposed to have downloaded this dependency by itself?
Try to execute gradle clean build jarAll
See this github issue for reference
From what I see in the build code, the task jarAll handles the joptsimple classes (and various others)
I got pre-built Spark 1.4.1 and I'm running HDP 2.6. when I try to run spark-shell it gives me an error message as follows.
Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/hadoop/fs/FSDataInputStream
at org.apache.spark.deploy.SparkSubmitArguments$$anonfun$mergeDefaultSparkProperties$1.apply(SparkSubmitArguments.scala:111)
at org.apache.spark.deploy.SparkSubmitArguments$$anonfun$mergeDefaultSparkProperties$1.apply(SparkSubmitArguments.scala:111)
at scala.Option.getOrElse(Option.scala:120)
at org.apache.spark.deploy.SparkSubmitArguments.mergeDefaultSparkProperties(SparkSubmitArguments.scala:111)
at org.apache.spark.deploy.SparkSubmitArguments.<init>(SparkSubmitArguments.scala:97)
at org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:107)
at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala)
Caused by: java.lang.ClassNotFoundException: org.apache.hadoop.fs.FSDataInputStream
at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
What is the issue?
ClassNotFoundException occurs when class loader could not find the
required class in class path . So , basically you should check your
class path and add the class in the classpath.
Check whether hadoop-common-0.21.0.jar is added to your classpath.
Is it possible that your Hadoop home is not set, as in here?
Cannot find hadoop installation: $HADOOP_HOME must be set or hadoop must be in the path
I am new to Hadoop and I have just setup Hadoop 1.2.1 on my Mac laptop (Mavericks). I then created a simple WordCount project in IntelliJ IDEA and was able to run the code on a dummy text file. I am having trouble with successfully creating a jar file which will replicate my execution through the IDE. I get the following error:
java -jar ./out/artifacts/WordCount_jar/WordCount.jar test.txt out [19:35:21]
Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/commons/logging/LogFactory
at org.apache.hadoop.conf.Configuration.<clinit>(Configuration.java:146)
at neu.cs.parallelprogramming.WordCount.main(WordCount.java:48)
Caused by: java.lang.ClassNotFoundException: org.apache.commons.logging.LogFactory
at java.net.URLClassLoader$1.run(URLClassLoader.java:372)
at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:360)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 2 more
FAIL: 1
Could anyone let me know what I am missing?
I guess you have to specify your class (which implements the Map/Reduce function).
E.g., $ java -jar ./WordCount.jar classWordCount input.txt output
or $ hadoop jar yourprogram.jar **yourclass** inputpath outputpath
The question is: if I type
hadoop jar MY.jar name_my_class /user/user/input /user/user/output
And all the class which I need are inside MY.jar, why I still get the error
java.lang.NoClassDefFoundError ??
I know that it is very general question, so if you think is better, I 'll provide all the details and the code :)
Thanks in advance
13/11/22 17:24:27 WARN mapred.LocalJobRunner: job_local1970405879_0001
java.lang.NoClassDefFoundError: org/jocl/CLException
at jocl.MaxTemperatureReducer.setup(MaxTemperatureReducer.java:33)
at org.apache.hadoop.mapreduce.Reducer.run(Reducer.java:174)
at org.apache.hadoop.mapred.ReduceTask.runNewReducer(ReduceTask.java:649)
at org.apache.hadoop.mapred.ReduceTask.run(ReduceTask.java:418)
at org.apache.hadoop.mapred.LocalJobRunner$Job.run(LocalJobRunner.java:398)
Caused by: java.lang.ClassNotFoundException: org.jocl.CLException
at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
... 5 more
It Looks like you are missing CLException class in your class path.
Copy the jar file containing the class org.jocl.CLException and put it in the lib folder of your hadoop installation.
I am trying to create the concordion-extensions-demo (located at http://concordion.org/Download.html) project with Maven.
When I run the command mvn test I receive errors ...
Caused by: java.lang.ClassNotFoundException: org.w3c.dom.ElementTraversal
at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:423)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
In the POM there are variables for ..
concordion.version, concordion-extensions.version and slf4j.version.
Do I need to update these tags with actual version numbers?
As is probably obvious I am not an experienced software devoloper or have much experience with Maven. Does anyone have an idea as to what the problem could be and how I could resolve this?
Thanks.
Tam.