Hi, I've been debugging a problem with an older Cocoon (2.1.8)
application. There was a sporadic bug that turned out to be the
consequence of a swallowed exception in a piece of code that some
other guy wrote. I also noticed that this piece of code, which parses
some XML fragments, was horribly slow, and that there was no
EntityResolver set on the parser. So I fixed the swallowed exception,
and while I was at it, I set the parser to use Cocoon catalog-based
EntityResolver.
The result is that (a) this bottleneck runs about 3 times faster,
although it's still slower than I'd like it to be, and (b) about every
10-12 times that I ran it last night, it would still die with a (no
longer swallowed!) java.net.ConnectException. I think this is the
exception that was getting buried before.
So anyway, the question is: why am I still getting network errors now
that I'm using the Cocoon EntityResolver? The stack trace looks like
this:
Caused by: java.net.ConnectException: Connection refused
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333)
at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:
195)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182)
at java.net.Socket.connect(Socket.java:520)
at java.net.Socket.connect(Socket.java:470)
at sun.net.NetworkClient.doConnect(NetworkClient.java:157)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:387)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:522)
at sun.net.www.http.HttpClient.<init>(HttpClient.java:231)
at sun.net.www.http.HttpClient.New(HttpClient.java:304)
at sun.net.www.http.HttpClient.New(HttpClient.java:321)
at
sun
.net
.www
.protocol
.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:813)
at
sun
.net
.www
.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:
765)
at
sun
.net
.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:690)
at
sun
.net
.www
.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:
934)
at
org.apache.xerces.impl.XMLEntityManager.setupCurrentEntity(Unknown
Source)
at org.apache.xerces.impl.XMLEntityManager.startEntity(Unknown
Source)
at org.apache.xerces.impl.XMLEntityManager.startEntity(Unknown
Source)
at org.apache.xerces.impl.XMLDTDScannerImpl.startPE(Unknown Source)
My DTD looks like this:
<!DOCTYPE xhtml-fragment
[
<!ENTITY % HTMLlat1 PUBLIC
"-//W3C//ENTITIES Latin 1 for XHTML//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml-lat1.ent";>
%HTMLlat1;
<!ENTITY % HTMLspecial PUBLIC
"-//W3C//ENTITIES Special for XHTML//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml-special.ent";>
%HTMLspecial;
]>
I looked at the Xerces source code and found that my EntityResolver is
invoked by XMLEntityManager.resolveEntity(), but not by
XMLEntityManager.startEntity() which is what is being called by
XMLDTDScannerImpl.startPE(), which is what's trying to make the
network connection... for whatever that's worth.
Any ideas?
thx-a-lot
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