nickwallen commented on a change in pull request #1345: METRON-2012 Unable to
Execute Stellar Functions Against HBase in the REPL
URL: https://github.com/apache/metron/pull/1345#discussion_r262627047
##########
File path: metron-platform/metron-common/pom.xml
##########
@@ -443,13 +444,12 @@
<relocations>
<relocation>
<pattern>com.google.common</pattern>
-
<shadedPattern>org.apache.metron.guava</shadedPattern>
+
<shadedPattern>org.apache.metron.guava.${guava_version}</shadedPattern>
Review comment:
In all the places where Guava is relocated, I used this standard prefix,
which includes the version number. This ensures that multiple projects pulling
in different versions of Guava do not overwrite one another. This also ensures
that multiple copies of a specific Guava version will not be included in the
jar.
I followed this pattern throughout. The specific Guava version necessary is
declared at the top. I then ensure we have an explicit dependency on Guava,
and make sure that Guava is relocated to a path that includes the version
number. Using a property for the Guava version makes sure the relocation and
the dependency line up correctly.
The resulting JARs will look like the following.
```
$ jar -tvf metron-platform/metron-common/target/metron-common-0.7.1.jar |
grep Stopwatch
1088 Tue Mar 05 13:11:28 EST 2019
org/apache/metron/guava/17/0/base/Stopwatch$1.class
4002 Tue Mar 05 13:11:28 EST 2019
org/apache/metron/guava/17/0/base/Stopwatch.class
```
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