Put versions into properties and updated plugin versions (Tested using: mvn clean compile test package install).

Author: moreaki

pom.xml

@@ -111,9 +111,25 @@
 
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <source.plugin.version>2.2.1</source.plugin.version>
-        <javadoc.plugin.version>2.9</javadoc.plugin.version>
-        <gpg.plugin.version>1.4</gpg.plugin.version>
+        <junit.version>4.11</junit.version>
+        <hamcrest.version>1.3</hamcrest.version>
+        <mockito.version>1.9.5</mockito.version>
+        <jdk.source.version>1.8</jdk.source.version>
+        <jdk.target.version>1.8</jdk.target.version>
+        <tools.maven.plugin.version>1.4</tools.maven.plugin.version>
+        <jacoco.maven.plugin.version>0.7.5.201505241946</jacoco.maven.plugin.version>
+        <maven.source.plugin.version>2.2.1</maven.source.plugin.version>
+        <maven.javadoc.plugin.version>2.10.3</maven.javadoc.plugin.version>
+        <maven.gpg.plugin.version>1.6</maven.gpg.plugin.version>
+        <maven.assembly.plugin.version>2.5.5</maven.assembly.plugin.version>
+        <maven.antrun.plugin.version>1.8</maven.antrun.plugin.version>
+        <maven.compiler.plugin.version>3.3</maven.compiler.plugin.version>
+        <maven.buildnumber.plugin.version>1.3</maven.buildnumber.plugin.version>
+        <maven.jar.plugin.version>2.6</maven.jar.plugin.version>
+        <maven.surefire.plugin.version>2.18.1</maven.surefire.plugin.version>
+        <maven.release.plugin.version>2.5.2</maven.release.plugin.version>
+        <maven.scm.plugin.version>1.9.4</maven.scm.plugin.version>
+        <maven.deploy.plugin.version>2.8.2</maven.deploy.plugin.version>
     </properties>
 
     <scm>
@@ -127,19 +143,19 @@
         <dependency>
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>
-            <version>4.11</version>
+            <version>${junit.version}</version>
             <scope>test</scope>
         </dependency>
         <dependency>
             <groupId>org.hamcrest</groupId>
             <artifactId>hamcrest-library</artifactId>
-            <version>1.3</version>
+            <version>${hamcrest.version}</version>
             <scope>test</scope>
         </dependency>
         <dependency>
             <groupId>org.mockito</groupId>
             <artifactId>mockito-all</artifactId>
-            <version>1.9.5</version>
+            <version>${mockito.version}</version>
             <scope>test</scope>
         </dependency>
     </dependencies>
@@ -181,26 +197,26 @@
                 <plugin>
                     <groupId>org.apache.maven.plugins</groupId>
                     <artifactId>maven-assembly-plugin</artifactId>
-                    <version>2.4</version>
+                    <version>${maven.assembly.plugin.version}</version>
                 </plugin>
                 <plugin>
                     <groupId>org.apache.maven.plugins</groupId>
                     <artifactId>maven-antrun-plugin</artifactId>
-                    <version>1.7</version>
+                    <version>${maven.antrun.plugin.version}</version>
                 </plugin>
                 <plugin>
                     <groupId>org.apache.maven.plugins</groupId>
                     <artifactId>maven-compiler-plugin</artifactId>
-                    <version>3.1</version>
+                    <version>${maven.compiler.plugin.version}</version>
                     <configuration>
-                        <source>1.8</source>
-                        <target>1.8</target>
+                        <source>${jdk.source.version}</source>
+                        <target>${jdk.target.version}</target>
                     </configuration>
                 </plugin>
                 <plugin>
                     <groupId>org.codehaus.mojo</groupId>
                     <artifactId>buildnumber-maven-plugin</artifactId>
-                    <version>1.2</version>
+                    <version>${maven.buildnumber.plugin.version}</version>
                     <configuration>
                         <buildNumberPropertyName>revision</buildNumberPropertyName>
                         <timestampPropertyName>timestamp</timestampPropertyName>
@@ -211,7 +227,7 @@
                 <plugin>
                     <groupId>org.apache.maven.plugins</groupId>
                     <artifactId>maven-jar-plugin</artifactId>
-                    <version>2.4</version>
+                    <version>${maven.jar.plugin.version}</version>
                     <configuration>
                         <archive>
                             <manifest>
@@ -268,7 +284,7 @@
                 <plugin>
                     <groupId>org.apache.maven.plugins</groupId>
                     <artifactId>maven-surefire-plugin</artifactId>
-                    <version>2.14</version>
+                    <version>${maven.surefire.plugin.version}</version>
                     <configuration>
                         <includes>
                             <include>com/tagtraum/perf/gcviewer/TestAll.java</include>
@@ -278,7 +294,7 @@
                 <plugin>
                     <groupId>org.apache.maven.plugins</groupId>
                     <artifactId>maven-release-plugin</artifactId>
-                    <version>2.5.1</version>
+                    <version>${maven.release.plugin.version}</version>
                     <configuration>
                         <localCheckout>true</localCheckout>
                         <pushChanges>false</pushChanges>
@@ -289,7 +305,7 @@
                         <dependency>
                             <groupId>org.apache.maven.plugins</groupId>
                             <artifactId>maven-scm-plugin</artifactId>
-                            <version>1.9.2</version>
+                            <version>${maven.scm.plugin.version}</version>
                         </dependency>
                     </dependencies>
                 </plugin>
@@ -306,17 +322,17 @@
                 <plugin>
                     <groupId>org.apache.geronimo.genesis.plugins</groupId>
                     <artifactId>tools-maven-plugin</artifactId>
-                    <version>1.4</version>
+                    <version>${tools.maven.plugin.version}</version>
                 </plugin>
                 <plugin>
                     <groupId>org.apache.maven.plugins</groupId>
                     <artifactId>maven-deploy-plugin</artifactId>
-                    <version>2.7</version>
+                    <version>${maven.deploy.plugin.version}</version>
                 </plugin>
                 <plugin>
                     <groupId>org.jacoco</groupId>
                     <artifactId>jacoco-maven-plugin</artifactId>
-                    <version>0.7.5.201505241946</version>
+                    <version>${jacoco.maven.plugin.version}</version>
                 </plugin>
                 <!--This plugin's configuration is used to store Eclipse
                     m2e settings only. It has no influence on the Maven build itself. -->
@@ -492,17 +508,17 @@
                     <plugin>
                         <groupId>org.apache.maven.plugins</groupId>
                         <artifactId>maven-source-plugin</artifactId>
-                        <version>${source.plugin.version}</version>
+                        <version>${maven.source.plugin.version}</version>
                     </plugin>
                     <plugin>
                         <groupId>org.apache.maven.plugins</groupId>
                         <artifactId>maven-javadoc-plugin</artifactId>
-                        <version>${javadoc.plugin.version}</version>
+                        <version>${maven.javadoc.plugin.version}</version>
                     </plugin>
                     <plugin>
                         <groupId>org.apache.maven.plugins</groupId>
                         <artifactId>maven-gpg-plugin</artifactId>
-                        <version>${gpg.plugin.version}</version>
+                        <version>${maven.gpg.plugin.version}</version>
                     </plugin>
                 </plugins>
             </build>