https://issues.apache.org/bugzilla/show_bug.cgi?id=57470
Bug ID: 57470
Summary: Occaisionally NPE in
org.apache.catalina.connector.Response.addSessionCooki
eInternal()
Product: Tomcat 7
Version: 7.0.55
Hardware: PC
OS: Linux
Status: NEW
Severity: minor
Priority: P2
Component: Catalina
Assignee: dev@tomcat.apache.org
Reporter: m...@mrobinson.ca
Occaisionally I get an NPE in
org.apache.catalina.connector.Response.addSessionCookieInternal():1008
Code at fault
MimeHeaders headers = coyoteResponse.getMimeHeaders();
int n = headers.size();
for (int i = 0; i < n; i++) {
1008: if (headers.getName(i).toString().equals(headername)) {
if (headers.getValue(i).toString().startsWith(startsWith)) {
headers.getValue(i).setString(sb.toString());
set = true;
}
}
}
I could submit a patch that just aggressively checks for nulls but I'm not sure
that is the correct solution. Some possible causes could be:
1. The value of headers.size() is changing. Which is bad since it would
indicate some threading problems.
2. MessageBytes is somehow producing a null. It could be the type is unknown
or the given chunk type is occaisionally returning null contents.
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