Problem with failed Java Callout -- failed to instantiate the JavaCallout class

Google Cloud Apigee
1

I saw this issue referenced over here, but even after removing the messageFlow and Expressions jar, it didn’t fix my problem. In fact, I stripped my java class down to nothing, just to see if I could get it to work:

package com.xxxx.pmb;

import com.apigee.flow.execution.ExecutionContext;
import com.apigee.flow.execution.ExecutionResult;
import com.apigee.flow.message.MessageContext;

/**
 * Created by AD97875 on 12/7/2015.
 */
public class DummyTest {

    public ExecutionResult execute(MessageContext messageContext,
                                   ExecutionContext executionContext) {

        return ExecutionResult.SUCCESS;
    }
}

My java callout looks like this:

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<JavaCallout async="false" continueOnError="false" enabled="true" name="JavaDecryptor">
    <DisplayName>Java.Decryptor</DisplayName>
    <Properties/>
    <ClassName>com.xxxx.pmb.DummyTest</ClassName>
    <ResourceURL>java://apigeeEncrypter-1.0-SNAPSHOT.jar</ResourceURL>
</JavaCallout>

And looking at the generated jar provides this:

C:\Users\AD97875\IdeaProjects\encyptJava\target>jar -tf apigeeEncrypter-1.0-SNAP
SHOT.jar
META-INF/
META-INF/MANIFEST.MF
com/
com/xxxx/
com/xxxx/pmb/
com/xxxx/pmb/DummyTest.class
META-INF/maven/
META-INF/maven/com.xxxx.pmb/
META-INF/maven/com.xxxx.pmb/apigeeEncrypter/
META-INF/maven/com.xxxx.pmb/apigeeEncrypter/pom.xml
META-INF/maven/com.xxxx.pmb/apigeeEncrypter/pom.properties

C:\Users\AD97875\IdeaProjects\encyptJava\target>

However, I’m still getting this error message:

Error in deployment for environment dev.The revision is deployed, but traffic cannot flow. Failed to instantiate the JavaCallout Class com.xxxx.pmb.DummyTest
2

Can you try simple java-cookbook sample provided in apigee samples here - https://github.com/apigee/api-platform-samples/tree/master/doc-samples/java-cookbook See if this sample works.

3

Hi @David Scott

From the code you have pasted it seems like your ‘DummyTest’ does not implement the interface

com.apigee.flow.execution.spi.Execution

Let me know if thats the issue

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