Bugzilla #38243:

Bugfix for NPE when there are gaps in the table-column setup.
Submitted by: Gerhard Oettl <gerhard.oettl.at.oesoft.at>

git-svn-id: https://svn.apache.org/repos/asf/xmlgraphics/fop/trunk@399200 13f79535-47bb-0310-9956-ffa450edef68

src/java/org/apache/fop/layoutmgr/table/ColumnSetup.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2005 The Apache Software Foundation.
+ * Copyright 2005-2006 The Apache Software Foundation.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -61,9 +61,10 @@ public class ColumnSetup {
             ListIterator iter = rawCols.listIterator();
             while (iter.hasNext()) {
                 TableColumn col = (TableColumn)iter.next();
-                if (col != null) {
-                    colnum = col.getColumnNumber();
+                if (col == null) {
+                    continue;
                 }
+                colnum = col.getColumnNumber();
                 for (int i = 0; i < col.getNumberColumnsRepeated(); i++) {
                     while (colnum > columns.size()) {
                         columns.add(null);

status.xml

@@ -27,6 +27,13 @@
 
   <changes>
     <release version="FOP Trunk">
+      <action context="Code" dev="JM" type="fix" fixes-bug="38243" due-to="Gerhard Oettl">
+        Bugfix: Gaps in table-columns cause a NullPointerException.
+      </action>
+      <action context="Code" dev="JM" type="update" fixes-bug="38946" due-to="Max Berger">
+        Changed the internal representation of colors to use Java's own color infrastructure
+        instead of FOP's home-grown classes.
+      </action>
       <action context="Code" dev="MM" type="fix">
         Bugfix: TABs were not correctly replaced by spaces in some circumstances.
       </action>

test/layoutengine/standard-testcases/table-column_gap.xml

@@ -0,0 +1,58 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  Copyright 2006 The Apache Software Foundation
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+-->
+<!-- $Id$ -->
+<testcase>
+  <info>
+    <p>
+      This test checks gaps in the table-column setup. Bug 38243 describes a NullPointerException in this case.
+    </p>
+  </info>
+  <fo>
+    <fo:root xmlns:fo="http://www.w3.org/1999/XSL/Format">
+      <fo:layout-master-set>
+        <fo:simple-page-master master-name="normal" page-width="5in" page-height="5in">
+          <fo:region-body/>
+        </fo:simple-page-master>
+      </fo:layout-master-set>
+      <fo:page-sequence master-reference="normal">
+        <fo:flow flow-name="xsl-region-body">
+          <fo:table table-layout="fixed" width="100%" border-collapse="separate">
+            <fo:table-column width="2cm"/>
+            <!-- skipping a table-column for column 2 here -->
+            <fo:table-column width="1cm" column-number="3"/>
+            <fo:table-body>
+              <fo:table-row>
+                <fo:table-cell>
+                  <fo:block>cell 1/1</fo:block>
+                </fo:table-cell>
+              </fo:table-row>
+              <fo:table-row>
+                <fo:table-cell column-number="3">
+                  <fo:block>cell 1/3</fo:block>
+                </fo:table-cell>
+              </fo:table-row>
+            </fo:table-body>
+          </fo:table>
+        </fo:flow>
+      </fo:page-sequence>
+    </fo:root>
+  </fo>
+  <checks>
+    <!-- The unpatched code provokes a NullPointerException. Just check that the file was produced. -->
+    <eval expected="1" xpath="count(//pageViewport)"/>
+  </checks>
+</testcase>