POI 59030 fix NPE in XWPFTableCell's getVerticalAlignment via Prasad Babu

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1731257 13f79535-47bb-0310-9956-ffa450edef68

src/ooxml/java/org/apache/poi/xwpf/usermodel/XWPFTableCell.java

@@ -227,14 +227,17 @@ public class XWPFTableCell implements IBody, ICell {
     /**
      * Get the vertical alignment of the cell.
      *
-     * @return the cell alignment enum value
+     * @return the cell alignment enum value or <code>null</code>
+     * if no vertical alignment is set.
      */
     public XWPFVertAlign getVerticalAlignment() {
         XWPFVertAlign vAlign = null;
         CTTcPr tcpr = ctTc.getTcPr();
         if (tcpr != null) {
             CTVerticalJc va = tcpr.getVAlign();
-            vAlign = stVertAlignTypeMap.get(va.getVal().intValue());
+            if (va != null && va.getVal() != null) {
+                vAlign = stVertAlignTypeMap.get(va.getVal().intValue());
+            }
         }
         return vAlign;
     }

src/ooxml/testcases/org/apache/poi/xwpf/usermodel/TestXWPFTableCell.java

@@ -19,8 +19,11 @@
 
 package org.apache.poi.xwpf.usermodel;
 
+import java.util.List;
+
 import junit.framework.TestCase;
 
+import org.apache.poi.xwpf.XWPFTestDataSamples;
 import org.apache.poi.xwpf.usermodel.XWPFTableCell.XWPFVertAlign;
 import org.openxmlformats.schemas.wordprocessingml.x2006.main.CTHMerge;
 import org.openxmlformats.schemas.wordprocessingml.x2006.main.CTShd;
@@ -103,4 +106,20 @@ public class TestXWPFTableCell extends TestCase {
         CTTcBorders tblBorders = tcPr.addNewTcBorders();
         CTVMerge vMerge = tcPr.addNewVMerge();
     }
+
+    public void testCellVerticalAlign() throws Exception{
+        XWPFDocument docx = XWPFTestDataSamples.openSampleDocument("59030.docx");
+        List<XWPFTable> tables = docx.getTables();
+        assertEquals(1, tables.size());
+
+        XWPFTable table = tables.get(0);
+
+        List<XWPFTableRow> tableRows = table.getRows();
+        assertEquals(2, tableRows.size());
+
+        assertNull(tableRows.get(0).getCell(0).getVerticalAlignment());
+        assertEquals(XWPFVertAlign.BOTTOM, tableRows.get(0).getCell(1).getVerticalAlignment());
+        assertEquals(XWPFVertAlign.CENTER, tableRows.get(1).getCell(0).getVerticalAlignment());
+        assertNull(tableRows.get(1).getCell(1).getVerticalAlignment());
+    }
 }