Update test dependency versions

Author: vlsi

jmh/pom.xml

@@ -45,7 +45,7 @@
 
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <jmh.version>1.0</jmh.version>
+        <jmh.version>1.21</jmh.version>
         <javac.target>1.6</javac.target>
         <uberjar.name>benchmarks</uberjar.name>
     </properties>

pom.xml

@@ -67,7 +67,7 @@
             <dependency>
                 <groupId>org.pcollections</groupId>
                 <artifactId>pcollections</artifactId>
-                <version>2.1.2</version>
+                <version>3.0.3</version>
                 <scope>test</scope>
             </dependency>
             <dependency>
@@ -79,7 +79,7 @@
             <dependency>
                 <groupId>org.openjdk.jol</groupId>
                 <artifactId>jol-core</artifactId>
-                <version>0.3.1</version>
+                <version>0.9</version>
                 <scope>test</scope>
             </dependency>
             <dependency>