问题
I have a problem with the newest version of macOS (BigSur 11.0.1) and the library PC/SC; before BigSur the program the uses the library worked fine but after the update isn't working anymore. I am using the java version 1.8.0_271
In the code, I use the method TerminalFactory.getDefaultType() to get the default type of Terminal Factory. Before the update I was receiving "PC/SC" but after the update I am receiving None.
If I want force to connect to an instance with this line
TerminalFactory factory = TerminalFactory.getInstance("PC/SC", null);
It will return the following error:
java.security.NoSuchAlgorithmException: Error constructing implementation (algorithm: PC/SC, provider: SunPCSC, class: sun.security.smartcardio.SunPCSC$Factory)
at java.security.Provider$Service.newInstance(Provider.java:1711)
at sun.security.jca.GetInstance.getInstance(GetInstance.java:243)
at sun.security.jca.GetInstance.getInstance(GetInstance.java:190)
at javax.smartcardio.TerminalFactory.getInstance(TerminalFactory.java:245)
at prueba.Prueba.isConnected(Prueba.java:165)
at prueba.Prueba.main(Prueba.java:63)
Caused by: java.lang.UnsupportedOperationException: PC/SC not available on this platform
at sun.security.smartcardio.PCSC.checkAvailable(PCSC.java:46)
at sun.security.smartcardio.SunPCSC$Factory.<init>(SunPCSC.java:59)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at java.security.Provider$Service.newInstance(Provider.java:1703)
... 5 more
Caused by: java.io.IOException: No PC/SC library found on this system
at sun.security.smartcardio.PlatformPCSC.getLibraryName(PlatformPCSC.java:122)
at sun.security.smartcardio.PlatformPCSC.access$000(PlatformPCSC.java:43)
at sun.security.smartcardio.PlatformPCSC$1.run(PlatformPCSC.java:64)
at sun.security.smartcardio.PlatformPCSC$1.run(PlatformPCSC.java:60)
at java.security.AccessController.doPrivileged(Native Method)
at sun.security.smartcardio.PlatformPCSC.<clinit>(PlatformPCSC.java:60)
at sun.security.smartcardio.SunPCSC$Factory.<init>(SunPCSC.java:59)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at java.security.Provider$Service.newInstance(Provider.java:1703)
at sun.security.jca.GetInstance.getInstance(GetInstance.java:243)
at sun.security.jca.GetInstance.getInstance(GetInstance.java:190)
at javax.smartcardio.TerminalFactory.getInstance(TerminalFactory.java:245)
at javax.smartcardio.TerminalFactory.<clinit>(TerminalFactory.java:106)
at prueba.Prueba.isConnected(Prueba.java:164)
... 1 more
entro isConnected--2
Exception in thread "main" java.lang.NullPointerException
at prueba.Prueba.isConnected(Prueba.java:173)
at prueba.Prueba.main(Prueba.java:63)
I found that Big Sur eliminates the library PC/SC and it is no possible to install it.
I don´t know if there is someone with the same error or someone that has already fix it.
Thanks for the help.
回答1:
Because of the changes in macOS Big Sur, Java PC/SC implementation no longer works correctly: https://bugs.openjdk.java.net/browse/JDK-8255877
The workaround is to set the system property:
sun.security.smartcardio.library=/System/Library/Frameworks/PCSC.framework/Versions/Current/PCSC
before trying to use TerminalFactory.
来源：https://stackoverflow.com/questions/64995956/problem-with-big-sur-11-0-1-and-pc-sc-library