[rfc][icedtea-web] Ignore invalid .jar files specified for plugin

[Adam Domurad]

So, first patch that isn't something trivial, I'll definitely need
people to weigh in on this one. 

The proprietary plug-in seems to just skip over any malformed .jar files
and carry on loading. This patch emulates that behaviour. 
This alleviates some of the symptoms of
http://icedtea.classpath.org/bugzilla/show_bug.cgi?id=1011 
However, the plugin should still parse folders differently and look for
resources in folders like the proprietary plug-in does.

ChangeLog:
2012-05-25  Adam Domurad <adomurad at redhat.com>

	Ignore invalid jar files, like the oracle plugin does.
	* netx/net/sourceforge/jnlp/tools/JarCertVerifier.java: Added extra 
	possible verification result, INVALID_JAR. This value occurs if the
	.jar file could not be properly loaded. The .jar file is then ignored.

-------------- next part --------------
A non-text attachment was scrubbed...
Name: ignore-invalid-jars.patch
Type: text/x-patch
Size: 4634 bytes
Desc: not available
Url : http://mail.openjdk.java.net/pipermail/distro-pkg-dev/attachments/20120525/6ba98cdf/ignore-invalid-jars.patch