Re: Avoid guava version conflict with hbase by shading

[Mark Prins]

It seems that the guava versions are not API compatible, so shading is
unlikely to help. You will need to downgrade to a compatible version of
guava or get the other projects to upgrade.
-M

Op 20 jan. 2018 07:51 schreef "Debraj Manna" <subharaj.ma...@gmail.com>:

I have posted more details in stackoverflow
<https://stackoverflow.com/questions/48140339/guava-23-5-
conflict-with-hbase-testing-util-1-2>.
I could not add all the details here because of size limitation.

In a project I am using Guava 23.5 but some of the dependencies (hadoop &
hbase) are using old Guava 14. This is causing an exception during runtime

As mentioned here <https://www.elastic.co/blog/to-shade-or-not-to-shade> I
tried to shade the Hbase dependency in a new module named shadedcdh. pom.xml
looks like below

?xml version="1.0" encoding="UTF-8"?>

<project xmlns="http://maven.apache.org/POM/4.0.0";
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
http://maven.apache.org/xsd/maven-4.0.0.xsd";>
    <parent>
        <artifactId>main</artifactId>
        <groupId>com.vnera</groupId>
        <version>0.001-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>shaded-cdh</artifactId>
    <packaging>jar</packaging>

    <dependencies>
        <dependency>
            <groupId>org.apache.hbase</groupId>
            <artifactId>hbase-testing-util</artifactId>
            <version>1.2.0-cdh5.7.0</version>
        </dependency>
        <dependency>
            <groupId>org.apache.hadoop</groupId>
            <artifactId>hadoop-client</artifactId>
            <version>${hadoop.version}</version>
        </dependency>
        <dependency>
            <groupId>org.apache.hadoop</groupId>
            <artifactId>hadoop-common</artifactId>
            <version>${hadoop.version}</version>
        </dependency>
        <dependency>
            <groupId>org.apache.hbase</groupId>
            <artifactId>hbase-client</artifactId>
            <!-- This must stay in sync with hbase version we deploy. -->
            <version>1.2.0-cdh5.7.0</version>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-shade-plugin</artifactId>
                <version>2.4.1</version>
                <executions>
                    <execution>
                        <phase>package</phase>
                        <goals>
                            <goal>shade</goal>
                        </goals>
                        <configuration>
                            <relocations>
                                <relocation>
                                    <pattern>com.google.common</pattern>

<shadedPattern>shaded.com.google.common</shadedPattern>
                                </relocation>
                            </relocations>
                            <transformers>
                                <transformer
implementation="org.apache.maven.plugins.shade.resource.
ManifestResourceTransformer"
/>
                            </transformers>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>

    <repositories>
        <repository>
            <id>cloudera</id>
            <url>https://repository.cloudera.com/artifactory/cloudera-repos/
</url>
        </repository>
    </repositories>
</project>

I excluded hbase and hadoop dependency from my project and added
shadedcdh as dependency. But this is still giving me the same
exception. The dependency tree I have posted in the stackoverflow. I
could not post here because of size limitation. Can someone let me
know how can I avoid the conflict?