Explicitly set javac source and target to 1.4, submitted by Christian Grobmeier, SANDBOX-288

git-svn-id: https://svn.apache.org/repos/asf/commons/sandbox/compress/trunk@743676 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/pom.xml b/pom.xml
index 5102d7a..a2d457a 100644
--- a/pom.xml
+++ b/pom.xml
@@ -85,9 +85,17 @@
   </properties> 
 
   <build>
-    <!-- turn off cobertura until we figure out why it's hanging -->
     <plugins>
       <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-compiler-plugin</artifactId>
+        <configuration>
+          <source>1.4</source>
+          <target>1.4</target>
+        </configuration>
+      </plugin>
+      <!-- turn off cobertura until we figure out why it's hanging -->
+      <plugin>
         <groupId>org.codehaus.mojo</groupId>
         <artifactId>cobertura-maven-plugin</artifactId>
         <configuration>