https://bz.apache.org/bugzilla/show_bug.cgi?id=62831
Bug ID: 62831
Summary: WorkbookFactory.create() doesn't work for File
subclasses
Product: POI
Version: 4.0.0-FINAL
Hardware: PC
Status: NEW
Severity: normal
Priority: P2
Component: SS Common
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
Hi,
If you pass a File subclass to the
org.apache.poi.ss.usermodel.WorkbookFactory.create() method, a
NoSuchMethodException is thrown.
For instance:
OK: WorkbookFactory.create(new File("C:\\temp\\test.xlsx"));
ERROR: WorkbookFactory.create(new File("C:\\temp\\test.xlsx") {});
Stacktrace:
Exception in thread "main" java.io.IOException:
java.lang.NoSuchMethodException:
org.apache.poi.xssf.usermodel.XSSFWorkbookFactory.createWorkbook(uz.POITest$1,
boolean)
at
org.apache.poi.ss.usermodel.WorkbookFactory.createWorkbook(WorkbookFactory.java:329)
at
org.apache.poi.ss.usermodel.WorkbookFactory.createXSSFWorkbook(WorkbookFactory.java:296)
at
org.apache.poi.ss.usermodel.WorkbookFactory.create(WorkbookFactory.java:284)
at
org.apache.poi.ss.usermodel.WorkbookFactory.create(WorkbookFactory.java:253)
at
org.apache.poi.ss.usermodel.WorkbookFactory.create(WorkbookFactory.java:234)
at uz.POITest.main(POITest.java:67)
Caused by: java.lang.NoSuchMethodException:
org.apache.poi.xssf.usermodel.XSSFWorkbookFactory.createWorkbook(uz.POITest$1,
boolean)
at java.lang.Class.getMethod(Class.java:1786)
at
org.apache.poi.ss.usermodel.WorkbookFactory.createWorkbook(WorkbookFactory.java:313)
... 5 more
The reason is that reflection is used within the WorkbookFactory class to find
the correct createWorkbook method. This fails for subclasses of java.io.File.
A concrete use-case is the JFileChooser which (on Windows) returns subclasses
of java.io.File when you select a file by double-clicking on it.
Maarten
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