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    Thrown when an application is trying to use or access an object whose reference equals to null but if you are getting no message, try using the option -XX:-OmitStackTraceInFastThrow.

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java.lang.NullPointerException: 	at java.io.Reader.(Unknown Source)	at java.io.InputStreamReader.(Unknown Source)	at org.raml.parser.visitor.YamlValidationService.validate(YamlValidationService.java:81)	at org.raml.parser.visitor.YamlValidationService.validate(YamlValidationService.java:71)	at org.mule.module.apikit.Configuration.validateRaml(Configuration.java:179)	at org.mule.module.apikit.Configuration.loadApiDefinition(Configuration.java:166)	at org.mule.module.apikit.Router.start(Router.java:112)	at org.mule.processor.chain.AbstractMessageProcessorChain.start(AbstractMessageProcessorChain.java:94)	at org.mule.construct.AbstractFlowConstruct.startIfStartable(AbstractFlowConstruct.java:322)	at org.mule.construct.AbstractPipeline.doStart(AbstractPipeline.java:312)	at org.mule.construct.AbstractFlowConstruct$2.onTransition(AbstractFlowConstruct.java:141)	at org.mule.construct.AbstractFlowConstruct$2.onTransition(AbstractFlowConstruct.java:137)	at org.mule.lifecycle.AbstractLifecycleManager.invokePhase(AbstractLifecycleManager.java:138)	at org.mule.construct.FlowConstructLifecycleManager.fireStartPhase(FlowConstructLifecycleManager.java:92)	at org.mule.construct.AbstractFlowConstruct.start(AbstractFlowConstruct.java:136)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)	at java.lang.reflect.Method.invoke(Unknown Source)	at org.mule.lifecycle.phases.DefaultLifecyclePhase.applyLifecycle(DefaultLifecyclePhase.java:237)	at org.mule.lifecycle.RegistryLifecycleManager$RegistryLifecycleCallback.onTransition(RegistryLifecycleManager.java:273)	at org.mule.lifecycle.RegistryLifecycleManager.invokePhase(RegistryLifecycleManager.java:152)	at org.mule.lifecycle.RegistryLifecycleManager.fireLifecycle(RegistryLifecycleManager.java:123)	at org.mule.registry.AbstractRegistryBroker.fireLifecycle(AbstractRegistryBroker.java:76)	at org.mule.registry.MuleRegistryHelper.fireLifecycle(MuleRegistryHelper.java:118)	at org.mule.lifecycle.MuleContextLifecycleManager$MuleContextLifecycleCallback.onTransition(MuleContextLifecycleManager.java:91)	at org.mule.lifecycle.MuleContextLifecycleManager$MuleContextLifecycleCallback.onTransition(MuleContextLifecycleManager.java:87)	at org.mule.lifecycle.MuleContextLifecycleManager.invokePhase(MuleContextLifecycleManager.java:69)	at org.mule.lifecycle.MuleContextLifecycleManager.fireLifecycle(MuleContextLifecycleManager.java:61)	at org.mule.DefaultMuleContext.start(DefaultMuleContext.java:270)	at org.mule.module.launcher.application.DefaultMuleApplication.start(DefaultMuleApplication.java:119)	at org.mule.module.launcher.artifact.ArtifactWrapper$4.execute(ArtifactWrapper.java:98)	at org.mule.module.launcher.artifact.ArtifactWrapper.executeWithinArtifactClassLoader(ArtifactWrapper.java:129)	at org.mule.module.launcher.artifact.ArtifactWrapper.start(ArtifactWrapper.java:93)	at org.mule.module.launcher.DefaultArtifactDeployer.deploy(DefaultArtifactDeployer.java:26)	at org.mule.module.launcher.ArchiveDeployer.guardedDeploy(ArchiveDeployer.java:269)	at org.mule.module.launcher.ArchiveDeployer.deployArtifact(ArchiveDeployer.java:290)	at org.mule.module.launcher.ArchiveDeployer.deployExplodedApp(ArchiveDeployer.java:257)	at org.mule.module.launcher.ArchiveDeployer.deployExplodedArtifact(ArchiveDeployer.java:110)	at org.mule.module.launcher.DeploymentDirectoryWatcher.deployExplodedApps(DeploymentDirectoryWatcher.java:275)	at org.mule.module.launcher.DeploymentDirectoryWatcher.start(DeploymentDirectoryWatcher.java:144)	at org.mule.tooling.server.application.ApplicationDeployer.main(ApplicationDeployer.java:106)