Index: shared/ldap/trunk/common/src/java/org/apache/ldap/common/filter/SimpleNode.java
===================================================================
--- shared/ldap/trunk/common/src/java/org/apache/ldap/common/filter/SimpleNode.java	(revision 179838)
+++ shared/ldap/trunk/common/src/java/org/apache/ldap/common/filter/SimpleNode.java	(working copy)
@@ -98,7 +98,7 @@
      * @see org.apache.ldap.common.filter.ExprNode#printToBuffer(
      * java.lang.StringBuffer)
      */
-    public void printToBuffer( StringBuffer a_buf )
+    public StringBuffer printToBuffer( StringBuffer a_buf )
     {
         a_buf.append( '(' ).append( getAttribute() ) ;
 
@@ -143,6 +143,8 @@
         {
             a_buf.append( ' ' ) ;
         }
+        
+        return a_buf;
     }
 
 
Index: shared/ldap/trunk/common/src/java/org/apache/ldap/common/filter/BranchNode.java
===================================================================
--- shared/ldap/trunk/common/src/java/org/apache/ldap/common/filter/BranchNode.java	(revision 179838)
+++ shared/ldap/trunk/common/src/java/org/apache/ldap/common/filter/BranchNode.java	(working copy)
@@ -234,7 +234,7 @@
      *
      * @see org.apache.ldap.common.filter.ExprNode#printToBuffer(java.lang.StringBuffer)
      */
-    public void printToBuffer( StringBuffer a_buf )
+    public StringBuffer printToBuffer( StringBuffer a_buf )
     {
         a_buf.append( '(' ) ;
 
@@ -271,6 +271,8 @@
         {
             a_buf.append( ' ' ) ;
         }
+        
+        return a_buf;
     }
 
 
Index: shared/ldap/trunk/common/src/java/org/apache/ldap/common/filter/ExtensibleNode.java
===================================================================
--- shared/ldap/trunk/common/src/java/org/apache/ldap/common/filter/ExtensibleNode.java	(revision 179838)
+++ shared/ldap/trunk/common/src/java/org/apache/ldap/common/filter/ExtensibleNode.java	(working copy)
@@ -100,7 +100,7 @@
      * @see org.apache.ldap.common.filter.ExprNode#printToBuffer(
      * java.lang.StringBuffer)
      */
-    public void printToBuffer( StringBuffer a_buf )
+    public StringBuffer printToBuffer( StringBuffer a_buf )
     {
         a_buf.append( '(' ).append( getAttribute() );
         a_buf.append( "-" );
@@ -122,6 +122,8 @@
         {
             a_buf.append( ' ' );
         }
+        
+        return a_buf;
     }
 
 
Index: shared/ldap/trunk/common/src/java/org/apache/ldap/common/filter/PresenceNode.java
===================================================================
--- shared/ldap/trunk/common/src/java/org/apache/ldap/common/filter/PresenceNode.java	(revision 179838)
+++ shared/ldap/trunk/common/src/java/org/apache/ldap/common/filter/PresenceNode.java	(working copy)
@@ -51,7 +51,7 @@
     /**
      * @see org.apache.ldap.common.filter.ExprNode#printToBuffer(java.lang.StringBuffer)
      */
-    public void printToBuffer( StringBuffer a_buf )
+    public StringBuffer printToBuffer( StringBuffer a_buf )
     {
         a_buf.append( '(' ).append( getAttribute() ).append( "=*" ) ;
 
@@ -67,7 +67,9 @@
         else
         {
             a_buf.append( ' ' ) ;
-        }
+        }
+        
+        return a_buf;
     }
 
 
Index: shared/ldap/trunk/common/src/java/org/apache/ldap/common/filter/AssertionNode.java
===================================================================
--- shared/ldap/trunk/common/src/java/org/apache/ldap/common/filter/AssertionNode.java	(revision 179838)
+++ shared/ldap/trunk/common/src/java/org/apache/ldap/common/filter/AssertionNode.java	(working copy)
@@ -122,9 +122,9 @@
     /**
      * @see org.apache.ldap.common.filter.ExprNode#printToBuffer(java.lang.StringBuffer)
      */
-    public void printToBuffer( StringBuffer a_buf )
+    public StringBuffer printToBuffer( StringBuffer a_buf )
     {
-        a_buf.append( m_desc ).append( MAX_STR ) ;
+        return a_buf.append( m_desc ).append( MAX_STR ) ;
     }
 
 
Index: shared/ldap/trunk/common/src/java/org/apache/ldap/common/filter/ScopeNode.java
===================================================================
--- shared/ldap/trunk/common/src/java/org/apache/ldap/common/filter/ScopeNode.java	(revision 179838)
+++ shared/ldap/trunk/common/src/java/org/apache/ldap/common/filter/ScopeNode.java	(working copy)
@@ -126,7 +126,7 @@
     /**
      * @see ExprNode#printToBuffer(StringBuffer)
      */
-    public void printToBuffer( StringBuffer buf )
+    public StringBuffer printToBuffer( StringBuffer buf )
     {
         switch ( this.scope )
         {
@@ -156,6 +156,8 @@
             buf.append( getAnnotations().get( "count" ).toString() );
             buf.append( ']' );
         }
+        
+        return buf;
     }
 
 
Index: shared/ldap/trunk/common/src/java/org/apache/ldap/common/filter/ExprNode.java
===================================================================
--- shared/ldap/trunk/common/src/java/org/apache/ldap/common/filter/ExprNode.java	(revision 179838)
+++ shared/ldap/trunk/common/src/java/org/apache/ldap/common/filter/ExprNode.java	(working copy)
@@ -66,7 +66,7 @@
      *
      * @param a_buf the buffer to append to.
      */
-    void printToBuffer( StringBuffer a_buf ) ;
+    StringBuffer printToBuffer( StringBuffer a_buf ) ;
 
     /**
      * Element/node accept method for visitor pattern.
Index: shared/ldap/trunk/common/src/java/org/apache/ldap/common/filter/SubstringNode.java
===================================================================
--- shared/ldap/trunk/common/src/java/org/apache/ldap/common/filter/SubstringNode.java	(revision 179838)
+++ shared/ldap/trunk/common/src/java/org/apache/ldap/common/filter/SubstringNode.java	(working copy)
@@ -202,7 +202,7 @@
     /**
      * @see org.apache.ldap.common.filter.ExprNode#printToBuffer(java.lang.StringBuffer)
      */
-    public void printToBuffer( StringBuffer a_buf )
+    public StringBuffer printToBuffer( StringBuffer a_buf )
     {
         a_buf.append( '(' ).append( getAttribute() ).append( '=' ) ;
 
@@ -242,6 +242,8 @@
         {
             a_buf.append( ' ' ) ;
         }
+        
+        return a_buf;
     }