I have a short question. I want to create a XMPP server with Apache Vysper. But when I try to create a server:
XMPPServer server = new XMPPServer("myserver.com");
I get a ClassNotFoundException on this line, although the class is imported correctly.
Can Somebody help me out?
Thanks :)
Here the Exception:
Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/vysper/xmpp/server/XMPPServer
at de.seba.vyspertest.App.main(App.java:13)
Caused by: java.lang.ClassNotFoundException: org.apache.vysper.xmpp.server.XMPPServer
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
... 1 more
Related
I am new to OSGi and I made a method which will call the Google translate API. When I called that method in a main it is working fine. And also I used Eclipse for coding and exported the project into a jar file from Eclipse and installed it on the apache felix framework. When I start the bundle I get the following exceptions,
I added all the external jar files to build path also.
org.osgi.framework.BundleException: Activator start error in bundle EnglishToSinhalaServicePublisher [58].
at org.apache.felix.framework.Felix.activateBundle(Felix.java:2452)
at org.apache.felix.framework.Felix.startBundle(Felix.java:2308)
at org.apache.felix.framework.BundleImpl.start(BundleImpl.java:998)
at org.apache.felix.gogo.command.Basic.start(Basic.java:739)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.apache.felix.gogo.runtime.Reflective.invoke(Reflective.java:139)
at org.apache.felix.gogo.runtime.CommandProxy.execute(CommandProxy.java:91)
at org.apache.felix.gogo.runtime.Closure.executeCmd(Closure.java:599)
at org.apache.felix.gogo.runtime.Closure.executeStatement(Closure.java:526)
at org.apache.felix.gogo.runtime.Closure.execute(Closure.java:415)
at org.apache.felix.gogo.runtime.Pipe.doCall(Pipe.java:416)
at org.apache.felix.gogo.runtime.Pipe.call(Pipe.java:229)
at org.apache.felix.gogo.runtime.Pipe.call(Pipe.java:59)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.NoClassDefFoundError: com/google/api/client/json/JsonFactory
at englishtosinhalaservicepublisher.Activator.start(Activator.java:46)
at org.apache.felix.framework.util.SecureAction.startActivator(SecureAction.java:698)
at org.apache.felix.framework.Felix.activateBundle(Felix.java:2402)
... 19 more
Caused by: java.lang.ClassNotFoundException: com.google.api.client.json.JsonFactory not found by EnglishToSinhalaServicePublisher [58]
at org.apache.felix.framework.BundleWiringImpl.findClassOrResourceByDelegation(BundleWiringImpl.java:1597)
at org.apache.felix.framework.BundleWiringImpl.access$300(BundleWiringImpl.java:79)
at org.apache.felix.framework.BundleWiringImpl$BundleClassLoader.loadClass(BundleWiringImpl.java:1982)
at java.lang.ClassLoader.loadClass(Unknown Source)
... 22 more
java.lang.NoClassDefFoundError: com/google/api/client/json/JsonFactory
g!
I'm trying to use Hadoop/Hbase sampler to connect and scan the tables created in Hbase, however my test is failing with the following messages.
Checked the configuration of Hadoop/Hbase all the service are running and listening to the appropriate port. (zookeeper is running and listening to 2181).
2016/04/02 15:44:04 ERROR - jmeter.threads.JMeterThread: Test failed! java.lang.NoClassDefFoundError: org/apache/commons/configuration/Configuration
at org.apache.hadoop.metrics2.lib.DefaultMetricsSystem.<init>(DefaultMetricsSystem.java:37)
at org.apache.hadoop.metrics2.lib.DefaultMetricsSystem.<clinit>(DefaultMetricsSystem.java:34)
at org.apache.hadoop.security.UgiInstrumentation.create(UgiInstrumentation.java:51)
at org.apache.hadoop.security.UserGroupInformation.initialize(UserGroupInformation.java:217)
at org.apache.hadoop.security.UserGroupInformation.ensureInitialized(UserGroupInformation.java:185)
at org.apache.hadoop.security.UserGroupInformation.isSecurityEnabled(UserGroupInformation.java:237)
at org.apache.hadoop.security.KerberosName.<clinit>(KerberosName.java:79)
at org.apache.hadoop.security.UserGroupInformation.initialize(UserGroupInformation.java:210)
at org.apache.hadoop.security.UserGroupInformation.ensureInitialized(UserGroupInformation.java:185)
at org.apache.hadoop.security.UserGroupInformation.isSecurityEnabled(UserGroupInformation.java:237)
at org.apache.hadoop.security.UserGroupInformation.getLoginUser(UserGroupInformation.java:482)
at org.apache.hadoop.security.UserGroupInformation.getCurrentUser(UserGroupInformation.java:468)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.apache.hadoop.hbase.util.Methods.call(Methods.java:37)
at org.apache.hadoop.hbase.security.User.call(User.java:590)
at org.apache.hadoop.hbase.security.User.callStatic(User.java:580)
at org.apache.hadoop.hbase.security.User.access$400(User.java:51)
at org.apache.hadoop.hbase.security.User$SecureHadoopUser.<init>(User.java:397)
at org.apache.hadoop.hbase.security.User$SecureHadoopUser.<init>(User.java:392)
at org.apache.hadoop.hbase.security.User.getCurrent(User.java:140)
at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionKey.<init>(HConnectionManager.java:435)
at org.apache.hadoop.hbase.client.HConnectionManager.getConnection(HConnectionManager.java:180)
at org.apache.hadoop.hbase.client.HTable.<init>(HTable.java:155)
at org.apache.hadoop.hbase.client.HTableFactory.createHTableInterface(HTableFactory.java:36)
at org.apache.hadoop.hbase.client.HTablePool.createHTable(HTablePool.java:265)
at org.apache.hadoop.hbase.client.HTablePool.findOrCreateTable(HTablePool.java:195)
at org.apache.hadoop.hbase.client.HTablePool.getTable(HTablePool.java:174)
at com.atlantbh.jmeter.plugins.hbasecomponents.config.HBaseConnectionVariable.getTable(HBaseConnectionVariable.java:43)
at com.atlantbh.jmeter.plugins.hbasecomponents.samplers.HBaseScanSampler.sample(HBaseScanSampler.java:94)
at org.apache.jmeter.threads.JMeterThread.process_sampler(JMeterThread.java:434)
at org.apache.jmeter.threads.JMeterThread.run(JMeterThread.java:261)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.ClassNotFoundException: org.apache.commons.configuration.Configuration
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
... 35 more**
The problem is on your JMeter side. As the error message states:
Caused by: java.lang.ClassNotFoundException: org.apache.commons.configuration.Configuration
which means that HBase Scan Sampler requires Apache Commons Configuration library, but looks like Hadoop plug-in does not provide it in its zip package. Try to ask on their forum if they are willing to fix it.
For now as a workaround you can:
Download commons-configuration2-2.0-bin.zip from the site
Unzip it
Copy commons-configuration2-2.0.jar into .../apache-jmeter/lib
Restart jmeter
I am trying to configure Tomcat 7 in My Eclipse Blue ans run it alone. I am getting the error in console as:
java.lang.NoClassDefFoundError: org/apache/tomcat/util/digester/Rule
at java.lang.Class.getDeclaredConstructors0(Native Method)
at java.lang.Class.privateGetDeclaredConstructors(Unknown Source)
at java.lang.Class.getConstructor0(Unknown Source)
at java.lang.Class.newInstance0(Unknown Source)
at java.lang.Class.newInstance(Unknown Source)
at org.apache.catalina.startup.Bootstrap.init(Bootstrap.java:220)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:406)
Caused by: java.lang.ClassNotFoundException: org.apache.tomcat.util.digester.Rule
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 java.lang.ClassLoader.loadClass(Unknown Source)
... 7 more
How can I resolve this error?
I made an application in Java (version 7) with Eclipse (Indigo) when I exported my application interface on a Runnable JAR file on my computer and tried it worked fine, then I tried on another computer and I get this problem
Exception in thread "main" java.lang.UnsupportedClassVersionError: cliente/Princ
ipal : Unsupported major.minor version 51.0
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClassCond(Unknown Source)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.security.SecureClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.access$000(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 java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at org.eclipse.jdt.internal.jarinjarloader.JarRsrcLoader.main(JarRsrcLoa
der.java:56)
I saw other post that this can be because the other computer have an older version of Java than mine, can somebody confirm this please?.
Yes, that is the error when you try to run Java bytecode with an older version that the version you build it with.
You will find more information in this question.
I try to start teamcity manually but I get an error:
*Exception in thread "main" java.lang.NoClassDefFoundError: jetbrains/buildServer
/agent/Check*
First I stop the windows service:
C:\>net stop tcbuildagent
The TeamCity Build Agent Service service is stopping..
The TeamCity Build Agent Service service was stopped successfully.
Then I start the agent:
C:\>C:\TeamCity\buildAgent\bin\agent.bat start
Exception in thread "main" java.lang.NoClassDefFoundError: jetbrains/buildServer
/agent/Check
Caused by: java.lang.ClassNotFoundException: jetbrains.buildServer.agent.Check
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)
Could not find the main class: jetbrains.buildServer.agent.Check. Program will
exit.
What is causing this issue?
It looks like your installation is broken, reinstalling TeamCity and the build agent should help.