Stephen Haberman created IVY-1386:
-------------------------------------
Summary: Disable DTD external fetching when not validation
Key: IVY-1386
URL: https://issues.apache.org/jira/browse/IVY-1386
Project: Ivy
Issue Type: Bug
Affects Versions: trunk
Environment: Ivy 2.4.0.alpha/IvyDE 2.2.0.beta2
Reporter: Stephen Haberman
Attachments: disableExternalDtds.diff, ivyde-xml-dtd-hung.txt
Our team uses Ivy/IvyDE, and noticed Eclipse hanging today/yesterday, to the
point of being unusable.
I tracked it down to Eclipse asking IvyDE "is this your file?", which IvyDE's
IvySettingsContentDescriber used XMLHelper.parse to answer, but then Xerces
hung while trying to load the XML file's DTD.
So, the problem was the DTD being unavailable, but it seems like XMLHelper
should turn this off, especially if the schema parameter is null, and it's in
non-validating mode.
The attached patch turns off external DTD fetching when XMLHelper is already in
non-validating mode.
This avoids the wire call, which speeds up the XMLHelper.parse by at least
100%, ~250-300ms when fetching the DTD, to ~100-150ms when not. (And this is
the happy case, in the worst case, waiting for the timeout if the DTD is
unavailable, takes ~20s).
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira
