java.lang.NullPointerException: This exception has no message.

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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.

Solutions on the web

via MuleSoft JIRA by rajesh manohar, 1 year ago
This exception has no message.
via GitHub by avasquez614
, 9 months ago
via Oracle Community by Labhan, 1 year ago
This exception has no message.
via echonest.com by Unknown author, 2 years ago
via relevantcodes.com by Unknown author, 1 year ago
via GitHub by nareshks051
, 1 year ago
This exception has no message.
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$2.onTransition(AbstractFlowConstruct.java:137)
at org.mule.lifecycle.AbstractLifecycleManager.invokePhase(AbstractLifecycleManager.java:138)
at org.mule.construct.FlowConstructLifecycleManager.fireStartPhase(FlowConstructLifecycleManager.java:92)
at org.mule.construct.AbstractFlowConstruct.start(AbstractFlowConstruct.java:136)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at org.mule.lifecycle.phases.DefaultLifecyclePhase.applyLifecycle(DefaultLifecyclePhase.java:237)
at org.mule.lifecycle.RegistryLifecycleManager$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)

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