From f8384718c0515a826bbc7715b7c5eabc42fef2be Mon Sep 17 00:00:00 2001 From: Nick Burch Date: Fri, 27 Jun 2008 10:12:11 +0000 Subject: [PATCH] Add MethodNotFound exceptions to the faq git-svn-id: https://svn.eu.apache.org/repos/asf/poi/trunk@672230 13f79535-47bb-0310-9956-ffa450edef68 --- src/documentation/content/xdocs/faq.xml | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) diff --git a/src/documentation/content/xdocs/faq.xml b/src/documentation/content/xdocs/faq.xml index e74b6f0..22c1a4c 100644 --- a/src/documentation/content/xdocs/faq.xml +++ b/src/documentation/content/xdocs/faq.xml @@ -22,6 +22,36 @@ + My code uses some new HSSF feature, compiles fine but fails when live with a "MethodNotFoundException" + + +

You almost certainly have an older version of POI earlier + on your classpath. Quite a few runtimes and other packages + will ship an older version of POI, so this is an easy problem + to hit without realising.

+

The best way to identify the offending earlier jar file is + with a few lines of java. These will load one of the core POI + classes, and report where it came from.

+ +ClassLoader classloader = org.apache.poi.poifs.filesystem.POIFSFileSystem.class.getClassLoader(); +URL res = classloader.getResource("org/apache/poi/poifs/filesystem/POIFSFileSystem.class"> +String path = res.getPath(); +System.out.println("Core POI came from " + path); + +
+
+ + + My code uses the scratchpad, compiles fine but fails to run with a "MethodNotFoundException" + + +

You almost certainly have an older version earlier on your + classpath. See the answer to the similar question above for + how to track this down.

+
+
+ + Why is reading a simple sheet taking so long? -- 2.11.4.GIT