#62831 Fix WorkbookFactory.create with a subclass of File, eg from JFileChooser

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1844116 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 7 insertions, 0 deletions

diff --git a/src/java/org/apache/poi/ss/usermodel/WorkbookFactory.java b/src/java/org/apache/poi/ss/usermodel/WorkbookFactory.java
index 50833aa6c2..aae8c043ce 100644
--- a/src/java/org/apache/poi/ss/usermodel/WorkbookFactory.java
+++ b/src/java/org/apache/poi/ss/usermodel/WorkbookFactory.java
@@ -296,6 +296,11 @@ public class WorkbookFactory {
         return createWorkbook("org.apache.poi.xssf.usermodel.XSSFWorkbookFactory", args);
     }
 
+    /**
+     * Does the actual call to HSSF or XSSF to do the creation.
+     * Uses reflection, so that this class can be in the Core non-OOXML
+     *  POI jar without errors / broken references to the OOXML / XSSF code.
+     */
     private static Workbook createWorkbook(String factoryClass, Object args[]) throws IOException, EncryptedDocumentException {
         try {
             Class<?> clazz = WorkbookFactory.class.getClassLoader().loadClass(factoryClass);
@@ -307,6 +312,8 @@ public class WorkbookFactory {
                     c = boolean.class;
                 } else if (InputStream.class.isAssignableFrom(c)) {
                     c = InputStream.class;
+                } else if (File.class.isAssignableFrom(c)) {
+                    c = File.class;
                 }
                 argsClz[i++] = c;
             }