https://issues.apache.org/bugzilla/show_bug.cgi?id=46559
Summary: org.apache.tools.zip.ZipFile leaves open file after
RuntimeException
Product: Ant
Version: unspecified
Platform: PC
OS/Version: Windows XP
Status: NEW
Severity: normal
Priority: P2
Component: Core
AssignedTo: [email protected]
ReportedBy: [email protected]
When a corrupted zip is read the method "resolveLocalFileHeaderData()" will
throw a RuntimeException. This exception is never caught so the archive file is
never closed and remains opened. The code calling constructor never gets a
handle on the object, so you can't close the archive. The Archive remains open
until JVM exits.
public ZipFile(File f, String encoding) throws IOException {
this.encoding = encoding;
archive = new RandomAccessFile(f, "r");
try {
populateFromCentralDirectory();
resolveLocalFileHeaderData();
} catch (IOException e) {
try {
archive.close();
} catch (IOException e2) {
// swallow, throw the original exception instead
}
throw e;
}
}
The RuntimeException stack
RuntimeException: data starting at 49679 is in unknown format
at org.apache.tools.zip.ZipEntry.setExtra(ZipEntry.java:268)
at org.apache.tools.zip.ZipFile.resolveLocalFileHeaderData(ZipFile.java:445)
at org.apache.tools.zip.ZipFile.<init>(ZipFile.java:144)
at org.apache.tools.zip.ZipFile.<init>(ZipFile.java:102)
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