Guava conflict when using flink kinesis consumer with grpc protobuf

[Vijay Balakrishnan]

Hi,

I have a dependency on guava in grpc protobuf as follows:

<dependency>

    <groupId>com.google.guava</groupId>

    <artifactId>guava</artifactId>

    <version>26.0-jre</version>

</dependency>

I also use Flink Kinesis Connector in the same project:

<dependency>

    <groupId>org.apache.flink</groupId>

    <artifactId>flink-connector-kinesis_${scala.binary.version}</artifactId>

    <version>${flink.version}</version>

</dependency>

This Flink Kinesis connector has a dependency on an older version of guava and this is causing issues with 2 versions of guava being loaded by the classloaders. How do i avoid this issue ?

Details:

While building the Flink Kinesis Connector, I changed the pom.xml to try to shade the guava library but this didn't help.It clearly says in the Flink Kinesis Connector pom.xml to not shade guava.

<relocations combine.children="override">

<!-- DO NOT RELOCATE GUAVA IN THIS PACKAGE -->

<relocation>

<pattern>com.google.protobuf</pattern>

<shadedPattern>org.apache.flink.kinesis.shaded.com.google.protobuf</shadedPattern>

</relocation> .....

Attempted following in my project's pom.xml but didn't work:

<relocations combine.children="override">

<!-- DO NOT RELOCATE GUAVA IN THIS PACKAGE -->

<relocation>

<pattern>com.google.guava</pattern>

<shadedPattern>org.apache.flink.kinesis.shaded.com.google.guava</shadedPattern>

</relocation> ..

Using JDK 8

TIA,