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System.getProperty can't read jnlp - resources since java 7 - Could this be because of an unsigned JNLP-File

Starting in java7 update51 there are new requirements for web start applications.

  • All the jars need to signed (not with self-signed cert) with a certificate
  • The manifest file needs to be updated - see this link

Some of the output is warnings but the 'permissions' tag is the required tag.

What kinds of error are you getting?

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