NPE in validator component if no classpath prefix

Caused by: org.apache.camel.ResolveEndpointFailedException: Failed to resolve endpoint: validator://my_message_v1.xsd due to: null
        at org.apache.camel.impl.DefaultCamelContext.getEndpoint(DefaultCamelContext.java:488)
        at org.apache.camel.util.CamelContextHelper.getMandatoryEndpoint(CamelContextHelper.java:61)
        at org.apache.camel.model.RouteDefinition.resolveEndpoint(RouteDefinition.java:187)
        at org.apache.camel.impl.DefaultRouteContext.resolveEndpoint(DefaultRouteContext.java:108)
        at org.apache.camel.impl.DefaultRouteContext.resolveEndpoint(DefaultRouteContext.java:114)
        at org.apache.camel.model.SendDefinition.resolveEndpoint(SendDefinition.java:61)
        at org.apache.camel.model.SendDefinition.createProcessor(SendDefinition.java:55)
        at org.apache.camel.model.ProcessorDefinition.createOutputsProcessor(ProcessorDefinition.java:402)
        at org.apache.camel.model.TryDefinition.createProcessor(TryDefinition.java:75)
        at org.apache.camel.model.ProcessorDefinition.makeProcessor(ProcessorDefinition.java:461)
        at org.apache.camel.model.ProcessorDefinition.addRoutes(ProcessorDefinition.java:179)
        at org.apache.camel.model.RouteDefinition.addRoutes(RouteDefinition.java:876)
        ... 48 more
Caused by: java.lang.NullPointerException
        at org.apache.camel.component.validator.DefaultLSResourceResolver.resolveResource(DefaultLSResourceResolver.java:73)
        at com.sun.org.apache.xerces.internal.util.DOMEntityResolverWrapper.resolveEntity(DOMEntityResolverWrapper.java:109)
        at com.sun.org.apache.xerces.internal.impl.XMLEntityManager.resolveEntity(XMLEntityManager.java:1056)
        at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaLoader.resolveDocument(XMLSchemaLoader.java:631)
        at com.sun.org.apache.xerces.internal.impl.xs.traversers.XSDHandler.resolveSchema(XSDHandler.java:2041)
        at com.sun.org.apache.xerces.internal.impl.xs.traversers.XSDHandler.constructTrees(XSDHandler.java:997)
        at com.sun.org.apache.xerces.internal.impl.xs.traversers.XSDHandler.constructTrees(XSDHandler.java:1109)
        at com.sun.org.apache.xerces.internal.impl.xs.traversers.XSDHandler.parseSchema(XSDHandler.java:609)
        at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaLoader.loadSchema(XMLSchemaLoader.java:588)
        at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaLoader.loadGrammar(XMLSchemaLoader.java:555)
        at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaLoader.loadGrammar(XMLSchemaLoader.java:521)
        at com.sun.org.apache.xerces.internal.jaxp.validation.XMLSchemaFactory.newSchema(XMLSchemaFactory.java:240)
        at javax.xml.validation.SchemaFactory.newSchema(SchemaFactory.java:591)
        at org.apache.camel.processor.validation.ValidatingProcessor.createSchema(ValidatingProcessor.java:279)
        at org.apache.camel.processor.validation.ValidatingProcessor.loadSchema(ValidatingProcessor.java:143)
        at org.apache.camel.component.validator.ValidatorComponent.createEndpoint(ValidatorComponent.java:55)
        at org.apache.camel.impl.DefaultComponent.createEndpoint(DefaultComponent.java:91)
        at org.apache.camel.impl.DefaultCamelContext.getEndpoint(DefaultCamelContext.java:469)
        ... 59 more