In developing a servlet, I came across a bug in the tomcat code. The problem
was that the server was leaking file handle resources. I could run my
servlet a couple of times, but then it would cause an OutOf Memory
exception. The problem was in the (partial path here)
org/apache/tomcat/loader/AdaptiveClassLoader.java class. Specifically, in
the getResource(String name) method, a ZipFile object is instantiated. This
opens a zip file. The file is never closed. A source code snippet follows
with the fix in bold:
// a jar:-URL *could* change even between minor releases, but
// didn't between JVM's 1.1.6 and 1.3beta. Tested on JVM's from
// IBM, Blackdown, Microsoft, Sun @ Windows and Sun @ Solaris
try {
ZipFile zf = new ZipFile(file.getAbsolutePath());
ZipEntry ze = zf.getEntry(name);
zf.close() ;
if (ze != null) {
A small oversight, but this was a show stopper for me. I'm happy to
contribute something back for the use of this software.
Kindest regards,
William D. Hayden
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