[Java SE] Java WebStart and JNLP Apps Get 'SecurityException - class does not match trust level (or signer information) of other classes in the same package' (Doc ID 2168729.1)

Last updated on OCTOBER 13, 2023

Applies to:

Symptoms

After installing a recent Java SE 7 or 8 patch update on a Windows system, Java WebStart (JNLP) applications fail to start with the following error and stack trace: 

Changes

The described issues occur only in the following Java releases:

Java SE 8:

• 8u91 (all builds)
• 8u92 (all builds except build 34)
• 8u101 (all builds)
• 8u102 (all builds except build 31 and higher)

Java SE 7

• 7u101 (all builds)
• 7u111 (all builds)

Cause

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