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Bug 149642

Summary: JNLP file doesn't declare DOCTYPE
Product: projects Reporter: Chris Webster <cwebster>
Component: Java WebstartAssignee: Tomas Zezula <tzezula>
Status: RESOLVED WONTFIX    
Severity: blocker CC: puce
Priority: P4    
Version: 6.x   
Hardware: All   
OS: All   
Issue Type: DEFECT Exception Reporter:

Description Chris Webster 2008-10-09 14:57:13 UTC 
When I attempt to validate a JNLP file, I get the following message in the output window:

XML validation started.

Checking file:/C:/test/test.jnlp...
cvc-elt.1: Cannot find the declaration of element 'jnlp'. [2] 
XML validation finished.

which seems to indicates a missing schema.
Comment 1 Milan Kubec 2008-10-10 08:19:32 UTC 
Well even the JNLP spec is not very strict about the DTD (part of JNLP spec):

"It is expected that future versions of this specification will introduce new elements and attributes that would be
backwards-compatible with the current DTD. Thus, a JNLP Client should not reject a JNLP file that has extra attributes
or elements. This means that the JNLP Client's XML parser must not validate the JNLP XML file against any fixed version
of the JNLP DTD. However, like any XML parser, if the JNLP XML file contains a DOCTYPE declaration that specifies which
DTD it uses, the parser may choose to validate the JNLP file against that specified DTD. If the JNLP file does not
contain a DOCTYPE declaration, the parser may not validate the file against any DTD."

Workaround is simple, if you want to validate just following line to the JNLP file:

<!DOCTYPE jnlp PUBLIC "-//Sun Microsystems, Inc//DTD JNLP Descriptor 6.0//EN" "http://java.sun.com/dtd/JNLP-6.0.dtd">
Comment 2 Milan Kubec 2009-05-18 13:01:54 UTC 
Lowering priority since it's not required by JNLP spec.
Comment 3 Milan Kubec 2009-09-22 11:39:56 UTC 
*** Issue 172749 has been marked as a duplicate of this issue. ***
Comment 4 Antonin Nebuzelsky 2010-01-11 04:29:17 UTC 
Changing the default component owner to tzezula.
Comment 5 Martin Balin 2016-07-07 08:38:47 UTC 
This old bug may not be relevant anymore. If you can still reproduce it in 8.2 development builds please reopen this issue.

Thanks for your cooperation,
NetBeans IDE 8.2 Release Boss