[CAMEL-11240] Simple Language: MethodNotFoundException when calling interface method implemented by super class

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.19.0
• Fix Version/s: 2.19.1, 2.20.0
• Component/s: camel-core
• Estimated Complexity: Unknown
• Regression: Regression
• Assignee: Claus Ibsen
• Reporter: Pascal Schumacher
• Created: 08/May/17 20:37
• Updated: 20/May/17 13:55
• Resolved: 20/May/17 13:55

Description

After updating from 2.18.3 to 2.19.0 this test fails:

package test;

import org.apache.camel.EndpointInject;
import org.apache.camel.Produce;
import org.apache.camel.ProducerTemplate;
import org.apache.camel.builder.ExchangeBuilder;
import org.apache.camel.builder.RouteBuilder;
import org.apache.camel.component.mock.MockEndpoint;
import org.apache.camel.test.junit4.CamelTestSupport;
import org.junit.Test;

public class MethodNotFoundExceptionTestSimplified extends CamelTestSupport {

    public static interface InterfaceEmpty {
        boolean isEmpty();
    }

    public static class SuperClazz {
        public boolean isEmpty() {
            return true;
        }
    }

    public static class Clazz extends SuperClazz implements InterfaceEmpty {
    }

    public static class MethodNotFoundExceptionRoute extends RouteBuilder {

        @Override
        public void configure() throws Exception {
            from("seda:in").choice().when(simple("${headers.bean.isEmpty()}")).to("mock:out");
        }
    }

    @Produce(uri = "seda:in")
    private ProducerTemplate in;

    @EndpointInject(uri = "mock:out")
    private MockEndpoint out;

    @Override
    protected RouteBuilder createRouteBuilder() {
        return new MethodNotFoundExceptionRoute();
    }

    @Test
    public void methodNotFoundExceptionException() throws Exception {
        out.expectedMessageCount(1);

        ExchangeBuilder exchangeBuilder = new ExchangeBuilder(context).withHeader("bean", new Clazz());
        in.send(exchangeBuilder.build());

        out.assertIsSatisfied();
    }
}

with:

22:35:38.069 [Camel (camel-1) thread #0 - seda://in] ERROR org.apache.camel.processor.DefaultErrorHandler - Failed delivery for (MessageId: ID-Redhawk-THINK-50332-1494275736472-0-3 on ExchangeId: ID-Redhawk-THINK-50332-1494275736472-0-4). Exhausted after delivery attempt: 1 caught: org.apache.camel.language.bean.RuntimeBeanExpressionException: Failed to invoke method: isEmpty() on null due to: org.apache.camel.component.bean.MethodNotFoundException: Method with name: isEmpty() (with no parameters) not found on bean: test.MethodNotFoundExceptionTestSimplified$Clazz@61a86839 of type: test.MethodNotFoundExceptionTestSimplified$Clazz. Exchange[]

Message History
---------------------------------------------------------------------------------------------------------------------------------------
RouteId              ProcessorId          Processor                                                                        Elapsed (ms)
[route1            ] [route1            ] [seda://in                                                                     ] [      1025]
[route1            ] [choice1           ] [when[simple{Simple: ${headers.bean.isEmpty()}}]choice[]                       ] [        33]

Stacktrace
---------------------------------------------------------------------------------------------------------------------------------------
org.apache.camel.language.bean.RuntimeBeanExpressionException: Failed to invoke method: isEmpty() on null due to: org.apache.camel.component.bean.MethodNotFoundException: Method with name: isEmpty() (with no parameters) not found on bean: test.MethodNotFoundExceptionTestSimplified$Clazz@61a86839 of type: test.MethodNotFoundExceptionTestSimplified$Clazz. Exchange[]
	at org.apache.camel.language.bean.BeanExpression$OgnlInvokeProcessor.process(BeanExpression.java:327)
	at org.apache.camel.language.bean.BeanExpression.evaluate(BeanExpression.java:115)
	at org.apache.camel.language.bean.BeanExpression.evaluate(BeanExpression.java:139)
	at org.apache.camel.model.language.ExpressionDefinition.evaluate(ExpressionDefinition.java:126)
	at org.apache.camel.model.language.ExpressionDefinition.evaluate(ExpressionDefinition.java:118)
	at org.apache.camel.builder.ExpressionBuilder$KeyedOgnlExpressionAdapter.evaluate(ExpressionBuilder.java:2490)
	at org.apache.camel.support.ExpressionAdapter.evaluate(ExpressionAdapter.java:36)
	at org.apache.camel.support.ExpressionSupport.matches(ExpressionSupport.java:32)
	at org.apache.camel.util.ExpressionToPredicateAdapter.matches(ExpressionToPredicateAdapter.java:35)
	at org.apache.camel.builder.SimpleBuilder.matches(SimpleBuilder.java:85)
	at org.apache.camel.processor.FilterProcessor.matches(FilterProcessor.java:65)
	at org.apache.camel.processor.ChoiceProcessor.process(ChoiceProcessor.java:93)
	at org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:541)
	at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:198)
	at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:198)
	at org.apache.camel.component.seda.SedaConsumer.sendToConsumers(SedaConsumer.java:298)
	at org.apache.camel.component.seda.SedaConsumer.doRun(SedaConsumer.java:207)
	at org.apache.camel.component.seda.SedaConsumer.run(SedaConsumer.java:154)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.apache.camel.component.bean.MethodNotFoundException: Method with name: isEmpty() (with no parameters) not found on bean: test.MethodNotFoundExceptionTestSimplified$Clazz@61a86839 of type: test.MethodNotFoundExceptionTestSimplified$Clazz. Exchange[]
	at org.apache.camel.component.bean.BeanInfo.createInvocation(BeanInfo.java:273)
	at org.apache.camel.component.bean.BeanInfo.createInvocation(BeanInfo.java:189)
	at org.apache.camel.component.bean.BeanProcessor.process(BeanProcessor.java:160)
	at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:109)
	at org.apache.camel.component.bean.BeanProcessor.process(BeanProcessor.java:69)
	at org.apache.camel.language.bean.BeanExpression$InvokeProcessor.process(BeanExpression.java:212)
	at org.apache.camel.language.bean.BeanExpression$OgnlInvokeProcessor.process(BeanExpression.java:323)
	... 20 common frames omitted
22:35:38.070 [Camel (camel-1) thread #0 - seda://in] WARN org.apache.camel.component.seda.SedaConsumer - Error processing exchange. Exchange[]. Caused by: [org.apache.camel.language.bean.RuntimeBeanExpressionException - Failed to invoke method: isEmpty() on null due to: org.apache.camel.component.bean.MethodNotFoundException: Method with name: isEmpty() (with no parameters) not found on bean: test.MethodNotFoundExceptionTestSimplified$Clazz@61a86839 of type: test.MethodNotFoundExceptionTestSimplified$Clazz. Exchange[]]
org.apache.camel.language.bean.RuntimeBeanExpressionException: Failed to invoke method: isEmpty() on null due to: org.apache.camel.component.bean.MethodNotFoundException: Method with name: isEmpty() (with no parameters) not found on bean: test.MethodNotFoundExceptionTestSimplified$Clazz@61a86839 of type: test.MethodNotFoundExceptionTestSimplified$Clazz. Exchange[]
	at org.apache.camel.language.bean.BeanExpression$OgnlInvokeProcessor.process(BeanExpression.java:327)
	at org.apache.camel.language.bean.BeanExpression.evaluate(BeanExpression.java:115)
	at org.apache.camel.language.bean.BeanExpression.evaluate(BeanExpression.java:139)
	at org.apache.camel.model.language.ExpressionDefinition.evaluate(ExpressionDefinition.java:126)
	at org.apache.camel.model.language.ExpressionDefinition.evaluate(ExpressionDefinition.java:118)
	at org.apache.camel.builder.ExpressionBuilder$KeyedOgnlExpressionAdapter.evaluate(ExpressionBuilder.java:2490)
	at org.apache.camel.support.ExpressionAdapter.evaluate(ExpressionAdapter.java:36)
	at org.apache.camel.support.ExpressionSupport.matches(ExpressionSupport.java:32)
	at org.apache.camel.util.ExpressionToPredicateAdapter.matches(ExpressionToPredicateAdapter.java:35)
	at org.apache.camel.builder.SimpleBuilder.matches(SimpleBuilder.java:85)
	at org.apache.camel.processor.FilterProcessor.matches(FilterProcessor.java:65)
	at org.apache.camel.processor.ChoiceProcessor.process(ChoiceProcessor.java:93)
	at org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:541)
	at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:198)
	at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:198)
	at org.apache.camel.component.seda.SedaConsumer.sendToConsumers(SedaConsumer.java:298)
	at org.apache.camel.component.seda.SedaConsumer.doRun(SedaConsumer.java:207)
	at org.apache.camel.component.seda.SedaConsumer.run(SedaConsumer.java:154)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.apache.camel.component.bean.MethodNotFoundException: Method with name: isEmpty() (with no parameters) not found on bean: test.MethodNotFoundExceptionTestSimplified$Clazz@61a86839 of type: test.MethodNotFoundExceptionTestSimplified$Clazz. Exchange[]
	at org.apache.camel.component.bean.BeanInfo.createInvocation(BeanInfo.java:273)
	at org.apache.camel.component.bean.BeanInfo.createInvocation(BeanInfo.java:189)
	at org.apache.camel.component.bean.BeanProcessor.process(BeanProcessor.java:160)
	at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:109)
	at org.apache.camel.component.bean.BeanProcessor.process(BeanProcessor.java:69)
	at org.apache.camel.language.bean.BeanExpression$InvokeProcessor.process(BeanExpression.java:212)
	at org.apache.camel.language.bean.BeanExpression$OgnlInvokeProcessor.process(BeanExpression.java:323)
	... 20 common frames omitted

This is a simplified example, a real example are java.util.LinkedHashSet#isEmpty and isEmpty methods of guava collection classes.

Issue Links

• is broken by: CAMEL-10396 Can't use parameter type to select among overloaded methods
• is related to: CAMEL-11235 Simple Language: AmbiguousMethodCallException when calling method implemented by super class when method is defined by interface and abstract class