Index: src/main/java/org/apache/maven/plugin/AbstractCompilerMojo.java
===================================================================
--- src/main/java/org/apache/maven/plugin/AbstractCompilerMojo.java	(revision 996571)
+++ src/main/java/org/apache/maven/plugin/AbstractCompilerMojo.java	(working copy)
@@ -442,7 +442,21 @@
                     {
                         key = "-" + key;
                     }
-                    cplrArgsCopy.put( key, value );
+                    if ( key.startsWith("-A") )
+                    {
+                        if(StringUtils.isNotEmpty(value))
+                        {
+                            cplrArgsCopy.put(key+"="+value, null);
+                        }
+                        else
+                        {
+                            cplrArgsCopy.put(key, null);
+                        }
+                    }
+                    else
+                    {
+                        cplrArgsCopy.put( key, value );
+                    }
                 }
             }
             if ( !StringUtils.isEmpty( effectiveCompilerArgument ) )