I have this problem when I run my program in java.However I have main method ,I have saved My file with the name of MyClass and run it in a right path.thanks in advance..
Exception in thread "main" java.lang.NoClassDefFoundError:MyClass
caused by:java.lang.classNotFoundException:MyClass
at java.net.URLClassLoader$1.run(Unknown sourse)
at java.security.AccessCountroller.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown sourse)
at java.lang.ClassLoader.loadClass(Unknown sourse)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown sourse)
at java.lang.ClassLoader.loadClass(Unknown sourse)
could not find the main class:Myclass.program will exit
I wonder about this:
main class:Myclass.program
Myclass is not the same as MyClass. Java is case sensitive.
Related
I have a simple hibernate in java for create table. It is Exception when execute.
public class TestEmployee {
public static void main(String[] args) {
AnnotationConfiguration config = new AnnotationConfiguration();
config.addAnnotatedClass(Employee.class);
config.configure();
new SchemaExport(config).create(true, true);
}
}
The Exception is :
Exception in thread "main" java.lang.NoClassDefFoundError: javax/persistence/Cacheable
at org.hibernate.cfg.AnnotationBinder.determineCacheSettings(AnnotationBinder.java: 988)
at org.hibernate.cfg.AnnotationBinder.bindClass(AnnotationBinder.java:579)
at org.hibernate.cfg.Configuration$MetadataSourceQueue.processAnnotatedClassesQueue(Configuration.java:4035)
at org.hibernate.cfg.Configuration$MetadataSourceQueue.processMetadata(Configuration.java:3989)
at org.hibernate.cfg.Configuration.secondPassCompile(Configuration.java:1398)
at org.hibernate.cfg.Configuration.generateDropSchemaScript(Configuration.java:1002 )
at org.hibernate.tool.hbm2ddl.SchemaExport.<init>(SchemaExport.java:130)
at org.hibernate.tool.hbm2ddl.SchemaExport.<init>(SchemaExport.java:92)
at com.Hibernate.chapter1.TestEmployee.main(TestEmployee.java:15)
Caused by: java.lang.ClassNotFoundException: javax.persistence.Cacheable
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)
Add hibernate-jpa-2.0-api-1.0.0.Final library in project build path. Download it from Maven Repo. Other versions are available here.
This error may get solved by including hibernate-jpa-2.0-api-1.0.0. in your classpath which can be found at hibernate-distribution-3.5.3-Final\lib\jpa.
Im trying to run code use protege-owl. So I added the protege.jar and protege-owl.jar to library to import edu.stanford.smi.protegex.owl.* and edu.stanford.smi.protege.*.
I also added jena jar files to use in next steps.
First i wrote simple code to see how it works :
import java.lang.Object;
import edu.stanford.smi.protege.*;
import edu.stanford.smi.protegex.owl.*;
import edu.stanford.smi.protegex.owl.jena.JenaOWLModel;
import edu.stanford.smi.protegex.owl.model.OWLNamedClass;
public class Main {
public static void main(String[] args) {
// TODO code application logic here
JenaOWLModel model=ProtegeOWL.createJenaOWLModel();
OWLNamedClass c= model.createOWLNamedClass("A");
System.out.print(c.getName());
}
}
But it gives me this error :
CONFIG: Protege 3.0 Build 141, JVM 1.6.0_20-b02, memory=259M, Windows 7, encoding=UTF-8, language=fa, country=IR
WARNING: Look and feel not found: com.jgoodies.plaf.plastic.PlasticLookAndFeel -- SystemUtilities.loadLookAndFeel()
WARNING: Plugins directory not found: C:\Users\mona\Documents\NetBeansProjects\JavaApplication3\plugins -- PluginUtilities.getPluginsDir()
WARNING: Exception Caught -- java.lang.NoClassDefFoundError: com/toedter/calendar/JDateChooser
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:247)
at edu.stanford.smi.protege.plugin.PluginUtilities.isLoadableClass(Unknown Source)
at edu.stanford.smi.protege.plugin.PluginUtilities.checkPlugin(Unknown Source)
at edu.stanford.smi.protege.plugin.PluginUtilities.checkPlugins(Unknown Source)
at edu.stanford.smi.protege.plugin.PluginUtilities.processManifest(Unknown Source)
at edu.stanford.smi.protege.plugin.PluginUtilities.loadPluginsWithClassLoader(Unknown Source)
at edu.stanford.smi.protege.plugin.PluginUtilities.createClassLoaderAndLoadPlugins(Unknown Source)
at edu.stanford.smi.protege.plugin.PluginUtilities.loadPlugins(Unknown Source)
at edu.stanford.smi.protege.plugin.PluginUtilities.loadSystemPlugins(Unknown Source)
at edu.stanford.smi.protege.plugin.PluginUtilities.loadPlugins(Unknown Source)
at edu.stanford.smi.protege.plugin.PluginUtilities.init(Unknown Source)
at edu.stanford.smi.protege.plugin.PluginUtilities.<clinit>(Unknown Source)
at edu.stanford.smi.protege.util.SystemUtilities.init(Unknown Source)
at edu.stanford.smi.protege.util.SystemUtilities.<clinit>(Unknown Source)
at edu.stanford.smi.protege.model.Project.<clinit>(Unknown Source)
at edu.stanford.smi.protegex.owl.ProtegeOWL.createJenaOWLModel(ProtegeOWL.java:32)
at javaapplication3.Main.main(Main.java:25)
Caused by: java.lang.ClassNotFoundException: com.toedter.calendar.JDateChooser
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method) . . . .
What can I do ?
Update:
I replace protege.jar with protege-3.5.jar and now it gives :
Exception in thread "main" java.lang.NoSuchMethodError: edu.stanford.smi.protege.model.SystemFrames.replaceFrame(Ledu/stanford/smi/protege/model/Frame;)V
at edu.stanford.smi.protegex.owl.model.impl.AbstractOWLModel.createSystemFrames(AbstractOWLModel.java:544)
at edu.stanford.smi.protege.model.DefaultKnowledgeBase.<init>(DefaultKnowledgeBase.java:79)
at edu.stanford.smi.protegex.owl.model.impl.AbstractOWLModel.<init>(AbstractOWLModel.java:318)
at edu.stanford.smi.protegex.owl.jena.JenaOWLModel.<init>(JenaOWLModel.java:62)
at edu.stanford.smi.protegex.owl.jena.JenaKnowledgeBaseFactory.createKnowledgeBase(JenaKnowledgeBaseFactory.java:55)
at edu.stanford.smi.protege.model.Project.createDomainKB(Project.java:429)
at edu.stanford.smi.protege.model.Project.createDomainKnowledgeBase(Project.java:447)
at edu.stanford.smi.protege.model.Project.<init>(Project.java:359)
at edu.stanford.smi.protege.model.Project.<init>(Project.java:341)
at edu.stanford.smi.protege.model.Project.createNewProject(Project.java:545)
at edu.stanford.smi.protegex.owl.ProtegeOWL.createJenaOWLModel(ProtegeOWL.java:32)
at javaapplication3.Main.main(Main.java:24)
Java Result: 1
Where is the problem?
I downloaded protege-owl.jar which is 3.24MB from different link and now it works.
I have used opening pdf using following code.
try
{
File file = new File("Sample.pdf");
java.awt.Desktop.getDeskTop().open(file);
System.out.println("File opened successfully");
}catch(Exception ex)
{
System.out.println("Error occurred: "+ex);
}
Now i want disable save,save as,print option in the pdf file before opening.I have tried this link.but it wont work.
It throws following error occur.
Exception in thread "main" java.lang.NoClassDefFoundError: org/bouncycastle/cms/Recipient
Caused by: java.lang.ClassNotFoundException: org.bouncycastle.cms.Recipient
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)
... 1 more
How to disable save,save as,print option for given pdf file?
You missd the most importnat part of the link you attached, you need to use the PdfWriter static fileds, i am not sure it support all your needs but at least some of them like ALLOW_PRINTING.
I have an applet that references 2 signed jars:
myapplet.jar
jackson-all-1.9.9.jar
When starting the applet the second time (first time is without errors), I get this:
Exception in thread "thread applet-main.MyApplet-1"
java.lang.ExceptionInInitializerError
at org.codehaus.jackson.map.deser.StdDeserializerProvider.<init>(StdDeserializerProvider.java:81)
at org.codehaus.jackson.map.ObjectMapper.<init>(ObjectMapper.java:398)
at org.codehaus.jackson.map.ObjectMapper.<init>(ObjectMapper.java:358)
at org.codehaus.jackson.map.ObjectMapper.<init>(ObjectMapper.java:328)
at net.Remote.<init>(Remote.java:50)
at main.Env.init(Env.java:44)
at main.MyApplet.init(MyApplet.java:25)
at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.SecurityException: Prohibited package name: java.util
at java.lang.ClassLoader.preDefineClass(Unknown Source)
at java.lang.ClassLoader.defineClassCond(Unknown Source)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.security.SecureClassLoader.defineClass(Unknown Source)
at sun.plugin2.applet.Applet2ClassLoader.findClass(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass0(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)
at sun.plugin2.applet.Plugin2ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at org.codehaus.jackson.map.deser.BasicDeserializerFactory.<clinit>(BasicDeserializerFactory.java:74)
... 9 more
The line in question is the first one in the following try-catch block:
try {
Class<?> key = Class.forName("java.util.ConcurrentNavigableMap");
Class<?> value = Class.forName("java.util.ConcurrentSkipListMap");
#SuppressWarnings("unchecked")
Class<? extends Map<?,?>> mapValue = (Class<? extends Map<?,?>>) value;
_mapFallbacks.put(key.getName(), mapValue);
} catch (ClassNotFoundException cnfe) { // occurs on 1.5
}
A couple of things I do not understand:
Why does my Java7 JVM not take it out of its runtime library? But rather
Why does it try to download /java/util/ConcurrentNavigableMap.class from my server, which obviously fails with a 404?
As that fails, why does it try to re-download myapplet.jar 25 times in rapid succession, each time successfully (200), and each time returning the same jar file?
Update I'm not sure whether the 25 retries are caused by the class loader trying to load the class, it might be some other code trying to load a resource (which would still be odd, but not related to the CurrentNavigableMap issue), so I'll exclude that from my question.
N.B. I guess it does not try to re-download the jackson jar file, as that one is listed in the cache_archive attribute.
Is this?
wrong:
Class.forName("java.util.ConcurrentNavigableMap");
Correct:
http://java.sun.com/javase/ja/6/docs/ja/api/java/util/concurrent/package-tree.html
Class.forName("java.util.concurrent.ConcurrentNavigableMap");
EDIT:
public static void main(String[] args)throws Exception {
// TODO Auto-generated method stub
System.out.println("debug1");
CommonsHttpOAuthConsumer consumer = new CommonsHttpOAuthConsumer("key","secret");
System.out.println("debug2");
...}
hi when i try to run this script i get this response:
debug1
Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/commons/codec/binary/Base64
at oauth.signpost.signature.OAuthMessageSigner.<init>(OAuthMessageSigner.java:37)
at oauth.signpost.signature.HmacSha1MessageSigner.<init>(HmacSha1MessageSigner.java:30)
at oauth.signpost.AbstractOAuthConsumer.<init>(AbstractOAuthConsumer.java:65)
at oauth.signpost.commonshttp.CommonsHttpOAuthConsumer.<init>(CommonsHttpOAuthConsumer.java:30)
at mein.tester.main(tester.java:21)
Caused by: java.lang.ClassNotFoundException: org.apache.commons.codec.binary.Base64
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)
... 5 more
Line 21 is the line before
System.out.println("debug2");
Well i can easily compile the code in eclipse and i added 2 Signpost librabrys and also common-codec.jar as external library as i read in another post.. however, how do i make it available on runtime?(i did like in the post "add it to WEB-INF/lib " -> i created that folder and added the jar
-i also tryed the defaultoauthconsumer -> same error
Right click on the jar and choose "add to build path"? I don't think the ide will automatically add it to your classpath unless you tell it to.