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https://issues.apache.org/jira/browse/CAMEL-11749?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Keegan Witt updated CAMEL-11749:
--------------------------------
Affects Version/s: (was: 2.19.1)
2.19.2
> NoTypeConversionAvailableException in wiretap
> ---------------------------------------------
>
> Key: CAMEL-11749
> URL: https://issues.apache.org/jira/browse/CAMEL-11749
> Project: Camel
> Issue Type: Improvement
> Components: camel-core
> Affects Versions: 2.19.2
> Reporter: Keegan Witt
> Assignee: Claus Ibsen
>
> # Clone
> https://github.com/apache/camel/tree/master/examples/camel-example-spring-boot
> # Add _CamelLogger.java_ with contents below to
> _src/main/java/org/apache/camel/examples_
> {code:title=CamelLogger.java}
> package org.apache.camel.examples;
> import org.apache.camel.Exchange;
> import org.apache.camel.Processor;
> import org.springframework.stereotype.Component;
> @Component
> public class CamelLogger implements Processor {
> @Override
> public void process(Exchange exchange) {
> System.err.println(exchange.getIn().getBody());
> }
> }
> {code}
> Changing _SampleCamelRouter_ to
> {code:java}
> @Component
> public class SampleCamelRouter extends RouteBuilder {
> @Override
> public void configure() throws Exception {
> from("timer:hello?period={{timer.period}}")
> .transform(method("myBean", "saySomething"))
> .wireTap("bean:camelLogger")
> .to("stream:out");
> }
> }
> {code}
> Fails with stacktrace
> {noformat}
> Stacktrace
> ---------------------------------------------------------------------------------------------------------------------------------------
> org.apache.camel.NoTypeConversionAvailableException: No type converter
> available to convert from type: null to the required type: java.lang.String
> with value null
> at
> org.apache.camel.impl.converter.BaseTypeConverterRegistry.mandatoryConvertTo(BaseTypeConverterRegistry.java:206)
> ~[camel-core-2.20.0-20170905.112154-218.jar:2.20.0-SNAPSHOT]
> at
> org.apache.camel.processor.SendDynamicProcessor.resolveEndpoint(SendDynamicProcessor.java:144)
> ~[camel-core-2.20.0-20170905.112154-218.jar:2.20.0-SNAPSHOT]
> at
> org.apache.camel.processor.SendDynamicProcessor.process(SendDynamicProcessor.java:104)
> ~[camel-core-2.20.0-20170905.112154-218.jar:2.20.0-SNAPSHOT]
> at
> org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:548)
> ~[camel-core-2.20.0-20170905.112154-218.jar:2.20.0-SNAPSHOT]
> at
> org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:201)
> [camel-core-2.20.0-20170905.112154-218.jar:2.20.0-SNAPSHOT]
> at
> org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:97)
> [camel-core-2.20.0-20170905.112154-218.jar:2.20.0-SNAPSHOT]
> at
> org.apache.camel.processor.WireTapProcessor$1.call(WireTapProcessor.java:158)
> [camel-core-2.20.0-20170905.112154-218.jar:2.20.0-SNAPSHOT]
> at
> org.apache.camel.processor.WireTapProcessor$1.call(WireTapProcessor.java:153)
> [camel-core-2.20.0-20170905.112154-218.jar:2.20.0-SNAPSHOT]
> at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> [na:1.8.0_144]
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> [na:1.8.0_144]
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> [na:1.8.0_144]
> at java.lang.Thread.run(Thread.java:748) [na:1.8.0_144]
> {noformat}
> With Camel 2.15.5 or with _SampleCamelRouter_ of content below, exception
> doesn't occur.
> {code:java}
> @Component
> public class SampleCamelRouter extends RouteBuilder {
> @Resource CamelLogger camelLogger;
> @Override
> public void configure() throws Exception {
> from("timer:hello?period={{timer.period}}")
> .transform(method("myBean", "saySomething"))
> .wireTap("direct:logging")
> .to("stream:out");
> from("direct:logging").process(camelLogger);
> }
> }
> {code}
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