Develop Reference

NoClassDefFoundError and ClassNotFoundException

I am using Eclipse and I have configured all the jars required for Spring Framework, it don't show any compilation error. But, when I run my main function(Test Class) it populates me this error. Am I missing something here? Please help me, could not find the actual solution to solve this problem.
Feb 27, 2017 1:15:20 AM org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions
INFO: Loading XML bean definitions from class path resource [applicationContext.xml]
Exception in thread "main" java.lang.NoClassDefFoundError: org/springframework/expression/PropertyAccessor
at org.springframework.context.support.AbstractApplicationContext.prepareBeanFactory(AbstractApplicationContext.java:481)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:398)
at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139)
at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:83)
at com.javatpoint.Test.main(Test.java:14)
Caused by: java.lang.ClassNotFoundException: org.springframework.expression.PropertyAccessor
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)
... 5 more

Some dependencies are not required at compile time but just at runtime.
The missing class is contained in the spring-expression jar. You can download it and add it to Eclipse too.

ClassNotFoundException: org.infinispan.remoting.transport.jgroups.JGroupsTransport

this issue drives me crazy
recently i configured hibernate to work with infinispan 8.1
and just worked fine in debug mode with eclipse
the problem when tried to deploy my application war on apache tomcat6
i get this exception
Caused by: org.hibernate.cache.CacheException: Unable to start region factory
at org.hibernate.cache.infinispan.InfinispanRegionFactory.start(InfinispanRegionFactory.java:415)
at org.hibernate.internal.CacheImpl.<init>(CacheImpl.java:49)
at org.hibernate.engine.spi.CacheInitiator.initiateService(CacheInitiator.java:28)
at org.hibernate.engine.spi.CacheInitiator.initiateService(CacheInitiator.java:20)
at org.hibernate.service.internal.SessionFactoryServiceRegistryImpl.initiateService(SessionFactoryServiceRegistryImpl.java:46)
at org.hibernate.service.internal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:234)
... 86 more
Caused by: org.infinispan.commons.CacheConfigurationException: Unable to instantiate class org.infinispan.remoting.transport.jgroups.JGroupsTransport
at org.infinispan.commons.util.Util.loadClass(Util.java:103)
at org.infinispan.commons.util.Util.getInstance(Util.java:258)
at org.infinispan.configuration.global.TransportConfigurationBuilder.defaultTransport(TransportConfigurationBuilder.java:207)
at org.infinispan.configuration.parsing.Parser72.parseJGroups(Parser72.java:405)
at org.infinispan.configuration.parsing.Parser72.readElement(Parser72.java:93)
at org.infinispan.configuration.parsing.ParserRegistry.parseElement(ParserRegistry.java:151)
at org.infinispan.configuration.parsing.ParserRegistry.parse(ParserRegistry.java:131)
at org.infinispan.configuration.parsing.ParserRegistry.parse(ParserRegistry.java:118)
at org.infinispan.configuration.parsing.ParserRegistry.parse(ParserRegistry.java:105)
at org.hibernate.cache.infinispan.InfinispanRegionFactory.parseWithOverridenClassLoader(InfinispanRegionFactory.java:518)
at org.hibernate.cache.infinispan.InfinispanRegionFactory.access$000(InfinispanRegionFactory.java:81)
at org.hibernate.cache.infinispan.InfinispanRegionFactory$1.doWork(InfinispanRegionFactory.java:484)
at org.hibernate.cache.infinispan.InfinispanRegionFactory$1.doWork(InfinispanRegionFactory.java:470)
at org.hibernate.boot.registry.classloading.internal.ClassLoaderServiceImpl.workWithClassLoader(ClassLoaderServiceImpl.java:342)
at org.hibernate.cache.infinispan.InfinispanRegionFactory.createCacheManager(InfinispanRegionFactory.java:469)
at org.hibernate.cache.infinispan.InfinispanRegionFactory.start(InfinispanRegionFactory.java:380)
... 91 more
Caused by: java.lang.ClassNotFoundException: org.infinispan.remoting.transport.jgroups.JGroupsTransport
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at org.infinispan.commons.util.Util.loadClassStrict(Util.java:158)
at org.infinispan.commons.util.Util.loadClass(Util.java:101)
... 106 more

This exception clearly shows that jar is not present on class path. For web project see if that jar is present inside lib folder of your war.

Exception in thread "main" java.lang.ExceptionInInitializerError caused by java.lang.RuntimeException: Unable to instance KieServices

I am trying to get started with Drools 6x, and in eclipse, I have created a Drools project, which creates the boilerplate code to run a simple drl.
I have the drools runtime installed via Eclipse.
I have drools libraries, drools-core-5.0.1.jar,kie-api-6.0.0.beta4.jar,kie-internal-6.0.0.beta2.jar as External jars in my project.
Yet, when I try to run the following, I get the following error:
java.lang.ExceptionInInitializerError
at com.sample.PetStoreExample.init(PetStoreExample.java:78)
at com.sample.PetStoreExample.main(PetStoreExample.java:67) Caused by: java.lang.RuntimeException: Unable to instance KieServices
at org.kie.api.KieServices$Factory.<clinit>(KieServices.java:137)
... 1 more Caused by: java.lang.ClassNotFoundException:org.drools.compiler.kie.builder.impl.KieServicesImpl 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)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at org.kie.api.KieServices$Factory.<clinit>(KieServices.java:165)
... 1 more

If you downloaded the zip of Jars from http://www.drools.org/, you're going to want to include every jar from /binaries in your project. Even the ones that seem like you won't use.
I had this same problem too because I assumed I only needed to use a few Jars, but it turns out they all depend on classes from the other jars in that zip folder.

I had this problem because I had both kie-api and kie-ci as dependencies in my pom file. I removed the kie-ci dependency and I'm not getting this issue any more.

Exception in thread "main" java.lang.NoClassDefFoundError: org/json/JSONObject

I'm using org.json.JSONObject to pass the parameters to the server. And I'm using Eclipse IDE. I have already added the java-json.jar file to the build path of the project. but still I'm getting the below exception while running the code and no compilation error is displayed. I did clean the project and refreshed several times but still I end up with exception. is there anything missing?
Exception in thread "main" java.lang.NoClassDefFoundError: org/json/JSONObject
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.validateMainClass(Unknown Source)
at sun.launcher.LauncherHelper.checkAndLoadMain(Unknown Source)
Caused by: java.lang.ClassNotFoundException: org.json.JSONObject

Download the Json jar from here and add it to the classpath. If its a web application then add its under lib's.

I have added the same java-json.jar file to the Run configuration's class path of the particular java file. And now it's working absolutely fine. thanks everyone!!!

Add maven dependency in pom.xml
<dependency>
<groupId>org.json</groupId>
<artifactId>json</artifactId>
</dependency>

Run Gate pipeline in eclipse I get this error Java.lang.ClassNotFoundException: gate.resource

I want to create Web service in eclipse + Tomcate v7 and use pipeline I created in Gate in Ubuntu 12.04 32 bit
but I get this error:
can you help me for solving this error??
INFO: Exception:
java.lang.NoClassDefFoundError: gate/Resource
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:274)
at org.apache.axis.utils.ClassUtils$2.run(ClassUtils.java:177)
at java.security.AccessController.doPrivileged(Native Method)
at org.apache.axis.utils.ClassUtils.loadClass(ClassUtils.java:160)
at org.apache.axis.utils.ClassUtils.forName(ClassUtils.java:142)
at org.apache.axis.utils.cache.ClassCache.lookup(ClassCache.java:85)
at org.apache.axis.providers.java.JavaProvider.getServiceClass(JavaProvider.java:428)
at org.apache.axis.providers.java.JavaProvider.initServiceDesc(JavaProvider.java:461)
at org.apache.axis.handlers.soap.SOAPService.getInitializedServiceDesc(SOAPService.java:286)
at org.apache.axis.deployment.wsdd.WSDDService.makeNewInstance(WSDDService.java:500)
at org.apache.axis.deployment.wsdd.WSDDDeployableItem.getNewInstance(WSDDDeployableItem.java:274)
at org.apache.axis.deployment.wsdd.WSDDDeployableItem.getInstance(WSDDDeployableItem.java:260)
at org.apache.axis.deployment.wsdd.WSDDDeployment.getService(WSDDDeployment.java:427)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at
Caused by: java.lang.ClassNotFoundException: gate.Resource
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1720)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1571)
... 53 more

Add all jar files in following folders in your build path:
.../GATE_Developer_7.1/bin/
.../GATE_Developer_7.1/lib/

Maybe my answer is a bit late, but I had the same error and found that it's due to the use of '~' for $HOME.
Changing ~/Gate/bin/gate.jar with /home/user/Gate/bin/gate.jar solved the problem for me.