[jira] [Created] (STORM-3550) Remove unused dependencies

["César Soto Valero (Jira)" <ji...@apache.org>]

César Soto Valero created STORM-3550:
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             Summary: Remove unused dependencies
                 Key: STORM-3550
                 URL: https://issues.apache.org/jira/browse/STORM-3550
             Project: Apache Storm
          Issue Type: Improvement
          Components: storm-core
            Reporter: César Soto Valero


There are some dependencies declared in *storm-core* that are not used. These dependencies should be removed to make the core library slimmer and its dependency tree less complex, which helps to maintain the project.

Unused dependencies with scope compile
 * *joda-time:joda-time*
 * *org.eclipse.jetty:jetty-util*
 * *org.eclipse.jetty:jetty-servlet*
 * *org.eclipse.jetty:jetty-servlets*
 * *com.fasterxml.jackson.core:jackson-core*
 * *com.fasterxml.jackson.dataformat:jackson-dataformat-smile*
 * *commons-fileupload:commons-fileupload*
 * *commons-codec:commons-codec*

Unused dependencies with scope test
 * *org.hamcrest:java-hamcrest***

PS: For some of these dependencies, such as *jackson-core* and *commons:codec,* I noticed that the same version is declared and included transitively in the dependency tree. This is redundant and should be avoided. The following is an excerpt of the Maven dependency tree that illustrates this situation.
{code:java}
+- com.fasterxml.jackson.core:jackson-core:jar:2.9.8:compile 
+- com.fasterxml.jackson.dataformat:jackson-dataformat-smile:jar:2.9.8:compile 
|  \- (com.fasterxml.jackson.core:jackson-core:jar:2.9.8:compile - omitted for duplicate)
{code}
{code:java}
+- commons-codec:commons-codec:jar:1.11:compile 
+- org.apache.hadoop:hadoop-auth:jar:2.8.5:compile
|  +- (commons-codec:commons-codec:jar:1.11:compile - omitted for duplicate)
. . .
{code}
 



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