From: Jeremias Maerki <jeremias@apache.org>
Date: Wed, 12 Mar 2003 10:48:04 +0000 (+0000)
Subject: Give a good message if the Driver isn't initialized.
X-Git-Tag: Alt-Design-integration-base~35
X-Git-Url: https://source.dussan.org/?a=commitdiff_plain;h=d4b3e4ec95c664a1e43bd424bcec04c1693b1684;p=xmlgraphics-fop.git

Give a good message if the Driver isn't initialized.


git-svn-id: https://svn.apache.org/repos/asf/xmlgraphics/fop/trunk@196075 13f79535-47bb-0310-9956-ffa450edef68
---

diff --git a/src/java/org/apache/fop/apps/Driver.java b/src/java/org/apache/fop/apps/Driver.java
index c8522bc74..2bcaeb775 100644
--- a/src/java/org/apache/fop/apps/Driver.java
+++ b/src/java/org/apache/fop/apps/Driver.java
@@ -552,6 +552,11 @@ public class Driver implements LogEnabled {
      * @return a content handler for handling the SAX events.
      */
     public ContentHandler getContentHandler() {
+        if (treeBuilder == null) {
+            throw new NullPointerException("Driver isn't initialized. "
+                + "You may have to call initialize() first.");
+        }
+        
         // TODO: - do this stuff in a better way
         // PIJ: I guess the structure handler should be created by the renderer.
         if (rendererType == RENDER_MIF) {