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Returns the code signers for the digital signatures associated with the JAR file. If there is no such code signer, it returns null. Make sure that the everything is read from the input stream before calling this method, or else the method returns null.
Only the digital signature on the entry is cryptographically verified. None of the certificates in the the Java.Security.Cert.CertPath returned from Java.Security.CodeSigner.SignerCertPath are verified and must be verified by the caller if needed. See Java.Security.Cert.CertPathValidator for more information.