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Why Does Java Throw a \'SecurityException: signer information does not match\'?

Mary-Kate Olsen

Nov 27, 2024 pm 09:10 PM

Why Does Java Throw a

Understanding "Java SecurityException: signer information does not match"

Recompiling classes can sometimes result in the unfamiliar error message "Java SecurityException: signer information does not match." This occurs when classes within the same package are loaded from different JAR files. These JAR files may possess signatures generated using distinct certificates.

To rectify this issue, ensure that all JAR files containing classes from the same package are signed utilizing the same certificate. Alternatively, remove any signatures from the manifests of JAR files that share overlapping packages. By doing so, you can eliminate the conflicting certificate information and resolve the SecurityException.

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