Remove unused dependencies from contrib, NIO and NIO examples (#1333)

Author: jean-philippe-martin

google-cloud-contrib/google-cloud-nio-examples/README.md

@@ -16,7 +16,7 @@ To run this example:
 
 3. Compile the JAR with:
     ```
-    mvn package -DskipTests -Dmaven.javadoc.skip=true  -Dmaven.source.skip=true
+    mvn package -DskipTests -Dmaven.javadoc.skip=true -Dmaven.source.skip=true
     ```
 
 4.    Run the sample with:

google-cloud-contrib/google-cloud-nio-examples/pom.xml

@@ -22,56 +22,7 @@
       <artifactId>google-cloud-storage</artifactId>
       <version>${project.version}</version>
     </dependency>
-    <dependency>
-      <groupId>com.google.guava</groupId>
-      <artifactId>guava</artifactId>
-      <version>19.0</version>
-    </dependency>
-    <dependency>
-      <groupId>com.google.code.findbugs</groupId>
-      <artifactId>jsr305</artifactId>
-      <version>2.0.1</version>
-    </dependency>
-    <dependency>
-      <groupId>javax.inject</groupId>
-      <artifactId>javax.inject</artifactId>
-      <version>1</version>
-    </dependency>
-    <dependency>
-      <groupId>com.google.auto.service</groupId>
-      <artifactId>auto-service</artifactId>
-      <version>1.0-rc2</version>
-      <scope>provided</scope> <!-- to leave out of the all-deps jar -->
-    </dependency>
-    <dependency>
-      <groupId>com.google.auto.value</groupId>
-      <artifactId>auto-value</artifactId>
-      <version>1.1</version>
-      <scope>provided</scope> <!-- to leave out of the all-deps jar -->
-    </dependency>
-    <dependency>
-      <groupId>junit</groupId>
-      <artifactId>junit</artifactId>
-      <version>4.12</version>
-      <scope>test</scope>
-    </dependency>
-    <dependency>
-      <groupId>com.google.guava</groupId>
-      <artifactId>guava-testlib</artifactId>
-      <version>19.0</version>
-      <scope>test</scope>
-    </dependency>
-    <dependency>
-      <groupId>com.google.truth</groupId>
-      <artifactId>truth</artifactId>
-      <version>0.27</version>
-      <scope>test</scope>
-    </dependency>
-    <dependency>
-      <groupId>org.mockito</groupId>
-      <artifactId>mockito-core</artifactId>
-      <version>1.9.5</version>
-    </dependency>
+
     <dependency>
       <groupId>org.apache.maven.plugins</groupId>
       <artifactId>maven-assembly-plugin</artifactId>

google-cloud-contrib/google-cloud-nio-examples/src/main/java/com/google/cloud/nio/examples/ListFilesystems.java

@@ -17,12 +17,6 @@
 package com.google.cloud.nio.examples;
 
 import java.io.IOException;
-import java.net.URI;
-import java.nio.file.FileSystem;
-import java.nio.file.FileSystems;
-import java.nio.file.Files;
-import java.nio.file.Path;
-import java.nio.file.Paths;
 import java.nio.file.spi.FileSystemProvider;
 
 /**

google-cloud-contrib/google-cloud-nio/pom.xml

@@ -19,7 +19,7 @@
   <dependencies>
     <dependency>
       <groupId>${project.groupId}</groupId>
-      <artifactId>google-cloud</artifactId>
+      <artifactId>google-cloud-storage</artifactId>
       <version>${project.version}</version>
     </dependency>
     <dependency>
@@ -71,6 +71,7 @@
       <groupId>org.mockito</groupId>
       <artifactId>mockito-core</artifactId>
       <version>1.9.5</version>
+      <scope>test</scope>
     </dependency>
   </dependencies>
   <build>

google-cloud-contrib/pom.xml

@@ -21,11 +21,6 @@
     <module>google-cloud-nio-examples</module>
   </modules>
   <dependencies>
-    <dependency>
-      <groupId>${project.groupId}</groupId>
-      <artifactId>google-cloud</artifactId>
-      <version>${project.version}</version>
-    </dependency>
   </dependencies>
   <build>
     <plugins>