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All,
It seems that Vector is used a lot in Tomcat code.
Since the JSP engine is riddled with uses, I figured I'd start
elsewhere with my cleanup. Here's something glaring:
o.a.c.connector.Response:882
@Override
public Collection<String> getHeaders(String name) {
Enumeration<String> enumeration =
getCoyoteResponse().getMimeHeaders().values(name);
Vector<String> result = new Vector<>();
while (enumeration.hasMoreElements()) {
result.addElement(enumeration.nextElement());
}
return result;
}
This one is straightforward to replace with ArrayList, but the
semantics will change because ArrayList is not synchronized.
Shall I return Collections.synchronizedCollection(...) or is it okay
to change this from a synchronized list to an unsynchronized one? I
can't find any reference to a requirement that the return value from
this method is thread-safe, and, in general, classes such as
HttpServletResponse are not considered thread-safe, so neither should
the return values from any of their methods IMO.
Any thoughts?
- -chris
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