[MPLUGIN-387] Bump plexus-compiler-manager to 2.8.8

Author: slachiewicz

maven-plugin-tools-annotations/pom.xml

@@ -90,13 +90,7 @@
     <dependency>
       <groupId>org.codehaus.plexus</groupId>
       <artifactId>plexus-compiler-manager</artifactId>
-      <version>1.8.6</version>
-      <exclusions>
-        <exclusion>
-          <groupId>org.codehaus.plexus</groupId>
-          <artifactId>plexus-component-api</artifactId>
-        </exclusion>
-      </exclusions>
+      <version>2.8.8</version><!-- Java 7 -->
       <scope>test</scope>
     </dependency>
     <dependency>