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Bernard Ligny commented on CAMEL-10236: --------------------------------------- Additional information: [B is the encoded type name for a byte array (see http://stackoverflow.com/questions/4606864/what-kind-of-java-type-is-b) The strange thing is that he capability of casting the *same* body to the *same* target type (InputStream) using the *same* method signature is depending on whether the bean is implementing or not the interface... > BeanProccessor - method invocation with generics+annotations > ------------------------------------------------------------ > > Key: CAMEL-10236 > URL: https://issues.apache.org/jira/browse/CAMEL-10236 > Project: Camel > Issue Type: Bug > Components: camel-core > Affects Versions: 2.17.2 > Reporter: Bernard Ligny > Priority: Minor > > The following code does not work: > {code:java} > public interface Transformer<T> { > public Object convert(T input) throws Exception; > } > public class MyTransformer implements Transformer<InputStream> { > @Override > public Object convert(@Body InputStream body) {...} > } > from("direct:foo") > .transform().method(new MyTransformer(), "convert") > .log("${body}"); > {code} > Stack trace: > {noformat} > java.lang.ClassCastException: [B cannot be cast to java.io.InputStream > at > net.haulogy.erpgis.esb.transformers.MyTransformer.convert(MyTransformer.java:1) > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) > at java.lang.reflect.Method.invoke(Method.java:498) > at > org.apache.camel.component.bean.MethodInfo.invoke(MethodInfo.java:408) > at > org.apache.camel.component.bean.MethodInfo$1.doProceed(MethodInfo.java:279) > at > org.apache.camel.component.bean.MethodInfo$1.proceed(MethodInfo.java:252) > at > org.apache.camel.component.bean.BeanProcessor.process(BeanProcessor.java:177) > at > org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:109) > at > org.apache.camel.component.bean.BeanProcessor.process(BeanProcessor.java:68) > at > org.apache.camel.language.bean.BeanExpression$InvokeProcessor.process(BeanExpression.java:211) > at > org.apache.camel.language.bean.BeanExpression.evaluate(BeanExpression.java:126) > at > org.apache.camel.language.bean.BeanExpression.evaluate(BeanExpression.java:138) > at > org.apache.camel.processor.TransformProcessor.process(TransformProcessor.java:50) > {noformat} -- This message was sent by Atlassian JIRA (v6.3.4#6332)