Question

My java code is dependent on 2 libraries A and B

A has a dependency on GoogleCollections
B has a dependency GoogleGuava r10;

Now when i build  my code everything works fine.But when i run i get following exception

java.lang.NoSuchMethodError: com.google.common.collect.ImmutableList.copyOf([Ljava/lang/Object;)Lcom/google/common/collect/ImmutableList;
    at com.abc.Pqr$Builder.withXYZ(ExponentialBackoffRetryPolicy.java:329)

How can i solve this problem?

Answer 1

Google Collections has been deprecated and moved into Guava. Exclude it from A. With Maven, you do that with the exclusions tag below the dependency tag in your project’s POM:

    <dependency>
        <groupId>org.project</groupId>
        <artifactId>library-a</artifactId>
        <version>[version]</version>
        <exclusions>
            <exclusion>
                <!-- whatever the correct values are -->
                <artifactId>google-collections</artifactId>
                <groupId>google-collections</groupId>
            </exclusion>
        </exclusions>
    </dependency>