https://bz.apache.org/bugzilla/show_bug.cgi?id=60128
Bug ID: 60128
Summary: File left open in ZipPackage when
InvalidFormatException are raised
Product: POI
Version: 3.15-dev
Hardware: PC
OS: Windows NT
Status: NEW
Severity: normal
Priority: P2
Component: OPC
Assignee: [email protected]
Reporter: [email protected]
Created attachment 34243
--> https://bz.apache.org/bugzilla/attachment.cgi?id=34243&action=edit
A invalid format file
ZipPackage isn't closing opened files when InvalidFormatExceptions are raised.
Running the code bellow, using the provided sample file, shows the problem,
while the sample code is running the file is open in operation system (you have
to use some SO tool to verify this).
Some details:
* To run you have to correct the path to provided file.
* The provided file is a invalid XLSX file, was created just to generate the
problem.
The Exception trace
at
org.apache.poi.openxml4j.opc.ZipPackage.getPartsImpl(ZipPackage.java:238)
at org.apache.poi.openxml4j.opc.OPCPackage.getParts(OPCPackage.java:726)
at org.apache.poi.openxml4j.opc.OPCPackage.open(OPCPackage.java:228)
at Main.main(Main.java:14)
It's happen because ZipPackage opens the file but don't close it when a
Exception is raised.
The sample code:
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.apache.poi.openxml4j.opc.OPCPackage;
import org.apache.poi.openxml4j.opc.PackageAccess;
public class Main {
public static void main(String[] args) throws IOException {
OPCPackage pkg = null;
try {
pkg = OPCPackage.open("C:/Temp/invalid file.xlsx",
PackageAccess.READ);
} catch (Exception ex) {
Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
} finally {
if (pkg != null) {
pkg.close();
}
}
BufferedReader in = new BufferedReader(new
InputStreamReader(System.in));
String s;
while ((s = in.readLine()) != null && s.length() != 0) {
// Enter to end sample
}
}
}
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