diff --git a/openjpa-jdbc/src/main/java/org/apache/openjpa/jdbc/sql/OracleDictionary.java b/openjpa-jdbc/src/main/java/org/apache/openjpa/jdbc/sql/OracleDictionary.java
index 36568040e..ec05e201e 100644
--- a/openjpa-jdbc/src/main/java/org/apache/openjpa/jdbc/sql/OracleDictionary.java
+++ b/openjpa-jdbc/src/main/java/org/apache/openjpa/jdbc/sql/OracleDictionary.java
@@ -362,10 +362,12 @@ public class OracleDictionary
         for (Iterator itr = aliases.iterator(); itr.hasNext(); i++) {
             alias = itr.next();
             String asString = null;
-            if (alias instanceof SQLBuffer)
+            if (alias instanceof SQLBuffer) {
                 asString = ((SQLBuffer) alias).getSQL();
-            else
+                selectSQL.appendParamOnly((SQLBuffer) alias);
+            } else {
                 asString = alias.toString();
+            }
             selectSQL.append(asString);
             if (asString.indexOf(" AS ") == -1)
                 selectSQL.append(" AS c").append(String.valueOf(i));
diff --git a/openjpa-jdbc/src/main/java/org/apache/openjpa/jdbc/sql/SQLBuffer.java b/openjpa-jdbc/src/main/java/org/apache/openjpa/jdbc/sql/SQLBuffer.java
index fc474750d..345877ffc 100644
--- a/openjpa-jdbc/src/main/java/org/apache/openjpa/jdbc/sql/SQLBuffer.java
+++ b/openjpa-jdbc/src/main/java/org/apache/openjpa/jdbc/sql/SQLBuffer.java
@@ -102,16 +102,23 @@ public final class SQLBuffer
      * Append all SQL and parameters of the given buffer.
      */
     public SQLBuffer append(SQLBuffer buf) {
-        append(buf, _sql.length(), (_params == null) ? 0 : _params.size(),
-            true);
+        append(buf, _sql.length(), (_params == null) ? 0 : _params.size(), true, false);
         return this;
     }
 
     /**
-     * Append all SQL and parameters of the given buffer at the given positions.
+     * Append parameters only if the given buffer at the given positions.
+    */
+    public SQLBuffer appendParamOnly(SQLBuffer buf) {
+        append(buf, _sql.length(), (_params == null) ? 0 : _params.size(), true, true);
+        return this;
+    }
+
+    /**
+     * Append parameters and/or SQL of the given buffer at the given positions.
      */
     private void append(SQLBuffer buf, int sqlIndex, int paramIndex,
-        boolean subsels) {
+        boolean subsels, boolean paramOnly) {
         if (subsels) {
             // only allow appending of buffers with subselects, not insertion
             if (_subsels != null && !_subsels.isEmpty()
@@ -128,10 +135,12 @@ public final class SQLBuffer
             }
         }
 
-        if (sqlIndex == _sql.length())
-            _sql.append(buf._sql.toString());
-        else
-            _sql.insert(sqlIndex, buf._sql.toString());
+        if (!paramOnly) {
+            if (sqlIndex == _sql.length())
+                _sql.append(buf._sql.toString());
+            else
+                _sql.insert(sqlIndex, buf._sql.toString());
+        }
 
         if (buf._params != null) {
             if (_params == null)
@@ -404,7 +413,7 @@ public final class SQLBuffer
             else
                 buf = sub.select.toSelect(false, sub.fetch);
             buf.resolveSubselects();
-            append(buf, sub.sqlIndex, sub.paramIndex, false);
+            append(buf, sub.sqlIndex, sub.paramIndex, false, false);
         }
         _subsels.clear();
     }
diff --git a/pom.xml b/pom.xml
index bf8030d1a..6f7f32214 100644
--- a/pom.xml
+++ b/pom.xml
@@ -522,12 +522,12 @@
             <dependency>
                 <groupId>javax.xml.bind</groupId>
                 <artifactId>jaxb-api</artifactId>
-                <version>2.0</version>
+                <version>2.2.1</version>
             </dependency>
             <dependency>
                 <groupId>com.sun.xml.bind</groupId>
                 <artifactId>jaxb-impl</artifactId>
-                <version>2.0.5</version>
+                <version>2.2.1</version>
             </dependency>
             <dependency>
                 <groupId>hsqldb</groupId>