[Java] Generate correct version check for appendable with fixed length char arrays. Issue #648.

Author: mjpt777

sbe-tool/src/main/java/uk/co/real_logic/sbe/generation/java/JavaGenerator.java

@@ -2038,7 +2038,7 @@ private CharSequence generatePrimitiveArrayPropertyDecode(
                     indent + "        }\n" +
                     indent + "    }\n\n",
                     Generators.toUpperFirstChar(propertyName),
-                    generateStringNotPresentCondition(propertyToken.version(), indent),
+                    generateStringNotPresentConditionForAppendable(propertyToken.version(), indent),
                     fieldLength, offset));
             }
         }