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FULL PRODUCT VERSION : java version "1.8.0_66" Java(TM) SE Runtime Environment (build 1.8.0_66-b18) Java HotSpot(TM) 64-Bit Server VM (build 25.66-b18, mixed mode) java version "1.7.0_79" Java(TM) SE Runtime Environment (build 1.7.0_79-b15) Java HotSpot(TM) 64-Bit Server VM (build 24.79-b02, mixed mode) ADDITIONAL OS VERSION INFORMATION : Windows 7 64bit EXTRA RELEVANT SYSTEM CONFIGURATION : SmartCard reader: Alcor Micro USB SmartCard Reader SmartCard chip: Gemalto TOP DM GX4Verze SmartCard ATR: 3B7F960000EA5CBDF07AEB6541894B0400000000 A DESCRIPTION OF THE PROBLEM : When calling KeyStore.load() with SunMSCAPI crypto provider (instantiated by getting a keystore with name "Windows-MY"), Java shows an unnecessary error window, if you use a Win CryptAPI-compatible smartcard. Sorry, I use a localized version of Java, so the strings reported here are just approximate. The window is titled "Insert a smartcard". It has 3 buttons (OK (disabled), Cancel (enabled), Details (enabled)). When clicking on details, a more elaborate view is presented. There is a SC reader icon with a "stop sign" drawn over it signaling some error. Next to this icon, the smartcard name is written (correctly), and beneath it there is a paragraph saying: "A smartcard has been detected. But another one is required for the requested operation. There is probably no driver for the smartcard used, or the required certificate hasn't been found". If I cancel this window, the load operation proceeds and finishes successfully (despite what would the error window suggest). Applications affected by this bug: * Libreoffice (in document signing) * JSignPDF ( https://github.com/kwart/jsignpdf ) STEPS TO FOLLOW TO REPRODUCE THE PROBLEM : KeyStore ks = KeyStore.getInstance("Windows-MY"); ks.load(null, null); System.out.println(Collections.list(ks.aliases()).toString()); REPRODUCIBILITY : This bug can be reproduced always. ---------- BEGIN SOURCE ---------- import java.io.IOException; import java.security.*; import java.security.cert.*; import java.util.Collections; public class Test { public static void main(String[] args) { try { KeyStore ks = KeyStore.getInstance("Windows-MY"); ks.load(null, null); System.out.println(Collections.list(ks.aliases()).toString()); } catch (KeyStoreException e) { e.printStackTrace(); } catch (NoSuchAlgorithmException e) { e.printStackTrace(); } catch (CertificateException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } } } ---------- END SOURCE ----------