Searched on Google with the first line of a JAVA stack trace?

We can recommend more relevant solutions and speed up debugging when you paste your entire stack trace with the exception message. Try a sample exception.

Recommended solutions based on your search

Samebug tips

  1. ,
    Expert tip

    The server rejects all jars that already belong to the server runtime (such as tomcat-**.jar, servlet**.jar). Consider substituting the CORS filter you're using for this one: https://goo.gl/ctQ7Fs

  2. ,

    This is thrown when the Java Virtual Machine (JVM) tries to load a particular class and the specified class cannot be found in the classpath. If you are using a Java version less than 8, upgrade because java.util.Base64 only comes with > Java 8.

Solutions on the web

via MuleSoft JIRA by Jean Baptiste, 1 year ago
java.lang.ClassNotFoundException: scala.Option at java.net.URLClassLoader.findClass(URLClassLoader.java:381)[?:1.8.0_66] at org.mule.module.launcher.FineGrainedControlClassLoader.findClass(FineGrainedControlClassLoader.java:175)[mule-module-launcher-3.8.1.jar:3.8.1] at org.mule.module.launcher.MuleApplicationClassLoader.findClass(MuleApplicationClassLoader.java:134)[mule-module-launcher-3.8.1.jar:3.8.1] at org.mule.module.launcher.FineGrainedControlClassLoader.loadClass(FineGrainedControlClassLoader.java:119)[mule-module-launcher-3.8.1.jar:3.8.1] at java.lang.ClassLoader.loadClass(ClassLoader.java:357)[?:1.8.0_66] at com.mulesoft.weave.mule.config.WeaveNamespaceHandler.init(WeaveNamespaceHandler.scala:22)[mule-plugin-weave-3.8.1.jar:?] at org.springframework.beans.factory.xml.DefaultNamespaceHandlerResolver.resolve(DefaultNamespaceHandlerResolver.java:131)[spring-beans-4.1.6.RELEASE.jar:4.1.6.RELEASE] at org.mule.config.spring.MuleHierarchicalBeanDefinitionParserDelegate.parseCustomElement(MuleHierarchicalBeanDefinitionParserDelegate.java:85)[mule-module-spring-config-3.8.1.jar:3.8.1] at org.mule.config.spring.MuleHierarchicalBeanDefinitionParserDelegate.parseCustomElement(MuleHierarchicalBeanDefinitionParserDelegate.java:140)[mule-module-spring-config-3.8.1.jar:3.8.1] at org.mule.config.spring.MuleHierarchicalBeanDefinitionParserDelegate.parseCustomElement(MuleHierarchicalBeanDefinitionParserDelegate.java:140)[mule-module-spring-config-3.8.1.jar:3.8.1] at org.springframework.beans.factory.xml.BeanDefinitionParserDelegate.parseCustomElement(BeanDefinitionParserDelegate.java:1417)[spring-beans-4.1.6.RELEASE.jar:4.1.6.RELEASE] at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.parseBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:180)[spring-beans-4.1.6.RELEASE.jar:4.1.6.RELEASE] at org.mule.config.spring.MuleBeanDefinitionDocumentReader.parseBeanDefinitions(MuleBeanDefinitionDocumentReader.java:56)[mule-module-spring-config-3.8.1.jar:3.8.1] at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.doRegisterBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:144)[spring-beans-4.1.6.RELEASE.jar:4.1.6.RELEASE] at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.registerBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:100)[spring-beans-4.1.6.RELEASE.jar:4.1.6.RELEASE] at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.registerBeanDefinitions(XmlBeanDefinitionReader.java:510)[spring-beans-4.1.6.RELEASE.jar:4.1.6.RELEASE] at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions(XmlBeanDefinitionReader.java:392)[spring-beans-4.1.6.RELEASE.jar:4.1.6.RELEASE] at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:336)[spring-beans-4.1.6.RELEASE.jar:4.1.6.RELEASE] at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:304)[spring-beans-4.1.6.RELEASE.jar:4.1.6.RELEASE] at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:181)[spring-beans-4.1.6.RELEASE.jar:4.1.6.RELEASE] at org.mule.config.spring.MuleArtifactContext.loadBeanDefinitions(MuleArtifactContext.java:192)[mule-module-spring-config-3.8.1.jar:3.8.1] at org.springframework.context.support.AbstractRefreshableApplicationContext.refreshBeanFactory(AbstractRefreshableApplicationContext.java:129)[spring-context-4.1.6.RELEASE.jar:4.1.6.RELEASE] at org.springframework.context.support.AbstractApplicationContext.obtainFreshBeanFactory(AbstractApplicationContext.java:537)[spring-context-4.1.6.RELEASE.jar:4.1.6.RELEASE] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:452)[spring-context-4.1.6.RELEASE.jar:4.1.6.RELEASE] at org.mule.config.spring.SpringRegistry.doInitialise(SpringRegistry.java:108)[mule-module-spring-config-3.8.1.jar:3.8.1] at org.mule.registry.AbstractRegistry.initialise(AbstractRegistry.java:104)[mule-core-3.8.1.jar:3.8.1] at org.mule.config.spring.SpringXmlConfigurationBuilder.createSpringRegistry(SpringXmlConfigurationBuilder.java:177)[mule-module-spring-config-3.8.1.jar:3.8.1] at org.mule.config.spring.SpringXmlConfigurationBuilder.doConfigure(SpringXmlConfigurationBuilder.java:100)[mule-module-spring-config-3.8.1.jar:3.8.1] at org.mule.config.builders.AbstractConfigurationBuilder.configure(AbstractConfigurationBuilder.java:43)[mule-core-3.8.1.jar:3.8.1] at org.mule.config.builders.AbstractResourceConfigurationBuilder.configure(AbstractResourceConfigurationBuilder.java:69)[mule-core-3.8.1.jar:3.8.1] at org.mule.config.builders.AutoConfigurationBuilder.autoConfigure(AutoConfigurationBuilder.java:101)[mule-core-3.8.1.jar:3.8.1] at org.mule.config.builders.AutoConfigurationBuilder.doConfigure(AutoConfigurationBuilder.java:52)[mule-core-3.8.1.jar:3.8.1] at org.mule.config.builders.AbstractConfigurationBuilder.configure(AbstractConfigurationBuilder.java:43)[mule-core-3.8.1.jar:3.8.1] at org.mule.config.builders.AbstractResourceConfigurationBuilder.configure(AbstractResourceConfigurationBuilder.java:69)[mule-core-3.8.1.jar:3.8.1] at org.mule.context.DefaultMuleContextFactory$1.configure(DefaultMuleContextFactory.java:89)[mule-core-3.8.1.jar:3.8.1] at org.mule.context.DefaultMuleContextFactory.doCreateMuleContext(DefaultMuleContextFactory.java:222)[mule-core-3.8.1.jar:3.8.1] at org.mule.context.DefaultMuleContextFactory.createMuleContext(DefaultMuleContextFactory.java:81)[mule-core-3.8.1.jar:3.8.1] at org.mule.module.launcher.application.DefaultMuleApplication.init(DefaultMuleApplication.java:198)[mule-module-launcher-3.8.1.jar:3.8.1] at org.mule.module.launcher.artifact.ArtifactWrapper$2.execute(ArtifactWrapper.java:63)[mule-module-launcher-3.8.1.jar:3.8.1] at org.mule.module.launcher.artifact.ArtifactWrapper.executeWithinArtifactClassLoader(ArtifactWrapper.java:136)[mule-module-launcher-3.8.1.jar:3.8.1] at org.mule.module.launcher.artifact.ArtifactWrapper.init(ArtifactWrapper.java:58)[mule-module-launcher-3.8.1.jar:3.8.1] at org.mule.module.launcher.DefaultArtifactDeployer.deploy(DefaultArtifactDeployer.java:25)[mule-module-launcher-3.8.1.jar:3.8.1] at org.mule.module.launcher.DefaultArchiveDeployer.guardedDeploy(DefaultArchiveDeployer.java:324)[mule-module-launcher-3.8.1.jar:3.8.1] at org.mule.module.launcher.DefaultArchiveDeployer.deployArtifact(DefaultArchiveDeployer.java:345)[mule-module-launcher-3.8.1.jar:3.8.1] at org.mule.module.launcher.DefaultArchiveDeployer.deployPackagedArtifact(DefaultArchiveDeployer.java:163)[mule-module-launcher-3.8.1.jar:3.8.1] at org.mule.module.launcher.DefaultArchiveDeployer.deployPackagedArtifact(DefaultArchiveDeployer.java:268)[mule-module-launcher-3.8.1.jar:3.8.1] at org.mule.module.launcher.DefaultArchiveDeployer.deployPackagedArtifact(DefaultArchiveDeployer.java:83)[mule-module-launcher-3.8.1.jar:3.8.1] at org.mule.module.launcher.DeploymentDirectoryWatcher.deployPackedApps(DeploymentDirectoryWatcher.java:275)[mule-module-launcher-3.8.1.jar:3.8.1] at org.mule.module.launcher.DeploymentDirectoryWatcher.start(DeploymentDirectoryWatcher.java:150)[mule-module-launcher-3.8.1.jar:3.8.1] at org.mule.module.launcher.MuleDeploymentService.start(MuleDeploymentService.java:104)[mule-module-launcher-3.8.1.jar:3.8.1] at org.mule.module.launcher.MuleContainer.start(MuleContainer.java:170)[mule-module-launcher-3.8.1.jar:3.8.1] at org.mule.tooling.server.application.ApplicationDeployer.main(ApplicationDeployer.java:15)[tooling-support-3.8.1.jar:?]