That attribute was added to the trunk last December (r5145).  v1.3.1 is
quite old, as it's really 1.3.0 patched to address a specific security
vulnerability.  Please try the latest nightly build (
http://www.tigervnc.org/tiger.nightly/) for a much more recent version.
 The nightly versions are also signed with a legit code signing certificate
in order to meet the new JRE security requirements.

HTH,
-brian


On Wed, Jun 18, 2014 at 1:59 PM, William H. ten Bensel <whten...@up.com>
wrote:

> Hello,
>
> Should Permissions: all-permissions be added to the MANIFEST.MF to the
> VNCviewer.jar?  The following is the reason I am asking.
>
> - Thanks in advance
>
> Bill
>
> Environment:
>        Windows PCs running Java 1.70_55 and attempting to launch
> VNCviewer.jar (versions 1.2.0, 1.3.0, and 1.3.1) via httpd and parameters
> passed via JNLP.  This is causing the following Java warning:
>         This application will be blocked in a future Java security update
> because the JAR file manifest does not contain the Permissions attribute.
>
> For anybody that is seeing this issue (probably not many people), this is
> what I did to resolve:
>
> Linux Device running httpd and serving .jar file and parameters being
> passed via JNLP.
> Extract:
>         jar xf VncViewer1.3.1.jar
>        mv META-INF/MANIFEST.MF .
>
> ADD:
>         vi MANIFEST.MF
>         Permissions: all-permissions
>
> Build:
>         jar cvfm VncViewer1.3.1.jar MANIFEST.MF com*
>
> Sign
>         jarsigner
>
>
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