我在调试java程序的时候，启动了短信猫，然后在java程序里调试接收短信的时候，可以收发短信，但是有的时候启动短信猫收发短信报这样的错误，请问看可能什么原因？

[abds]

Exception in thread "SMSLib-AsyncMessageProcessor : modem.com1" java.lang.RuntimeException: getText() not supported
at org.smslib.InboundBinaryMessage.getText(InboundBinaryMessage.java:37)
at com.sdb.test.ReadAndSendSimple.actionPerformedMsg(ReadAndSendSimple.java:63)
at com.sdb.modem.SendReadMsger.msgArrive(SendReadMsger.java:87)
at com.sdb.modem.Modem.msgArrive(Modem.java:56)
at com.sdb.modem.Modem.access$0(Modem.java:55)
at com.sdb.modem.Modem$InboundNotification.process(Modem.java:221)
at org.smslib.modem.AModemDriver$AsyncMessageProcessor.run(AModemDriver.java:898)