Also I included the code for memory management to release the object when it is used in timer by assigning NULL value to it.
I searched on internet and cannot find anything regarding above memory error. *** set a breakpoint in malloc_error_break to debug Logger.getLogger(NFC_()).log(Level.SEVERE,null, e) Ībove code is working fine in Windows OS but when I run it on MAC OS then application runs for 5-10 seconds perfectly but then it suddenly crash with the following memory error. If (factory != null & factory.terminals() != null & terminalsĬardTerminal terminal = terminals.get(0) Logger.getLogger(NFC_()).log(Level.SEVERE,null, ex)
If (contextId.getLong(pcscterminal) != 0L) )).longValue() /////////////////This fix applied after reading thread at Ĭlass.forName("") įield contextId = pcscterminal.getDeclaredField("contextId") Logger.getLogger(NFC_()).log(Level.SEVERE, null, ex) Timer.scheduleAtFixedRate(new NFC_Test.MyTask(), 0, 1000) Timer = new Timer() //At this line a new Thread will be created I tried to find the Event based api to implement above functionality but I cannot find so I used Java Timer and Polling for the NFC Reader Device and NFC Tag.įollowing is my sample JAVA code that used for Polling for NFC device and Tag. Then if the device is connected and NFC Tag is presented then display the notification that NFC Tag is presented. The functionality of the application is to display notification when the NFC Reader device is connect or disconnect from PC. I used JAVA and javax.smartcardio API to detect the NFC Reader and Reading NFC Tag. I am developing an application to read a NFC Tag UID from NFC Reader (ACR122U-A9) device.
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