Posted on April 29, 2018 at 16:25Hi,
As though there are libraries available for Mac OS X, my simple application randomly (almost always) crashes, and it has something to do with the dynamic libraries provided, specifically streader.dylib.
Any thoughts would be appreciated.
I'm running a MacBook Pro with macOS High Sierra version 10.13.4.
My code:
public
static
void
main(String[]
args
)
throws
STException {
stReader
=
new
STReader();
boolean
connected
=
stReader
.connect();
connected
=
stReader
.connect();
RFGenericReader
mActiveRFReader
=
stReader
;
if
(
connected
) {
System.
out
.println(
'Connected!'
);
String
name
=
mActiveRFReader
.getName();
System.
out
.println(
name
+
' is connected'
);
stReader
.initialize();
List<
byte
[]>
uidList
=
new
ArrayList<>();
try
{
uidList
=
mActiveRFReader
.getTransceiveInterface().inventory(RFReaderInterface.InventoryMode.
NFC_TYPE_5
);
if
(!
uidList
.isEmpty()) {
Iso15693Command
cmd
=
new
Iso15693Command(
mActiveRFReader
.getTransceiveInterface(),
null
);
cmd
.setFlag(Iso15693Protocol.
HIGH_DATA_RATE_MODE
);
cmd
.resetToReady();
System.
out
.println(Helper.convertByteArrayToHexString(Helper.reverseByteArray(
uidList
.get(0))));
}
}
catch
(STException
e
) {
e
.printStackTrace();
}
}
}
Sometimes it crashes at mActiveRFReader
.getName()
[Console output]:
Connected!
#
# A fatal error has been detected by the Java Runtime Environment:
#
#
SIGSEGV (0xb) at pc=0x000000011081bd48, pid=6725, tid=0x0000000000002803
#
# JRE version: Java(TM) SE Runtime Environment (8.0_121-b13) (build 1.8.0_121-b13)
# Java VM: Java HotSpot(TM) 64-Bit Server VM (25.121-b13 mixed mode bsd-amd64 compressed oops)
# Problematic frame:
# C
[streader.dylib+0xd48]
Java_com_st_st25pc_model_readers_st_STReader_getName+0x18
And sometimes it crashes at
mActiveRFReader
.getTransceiveInterface().inventory(RFReaderInterface.InventoryMode.NFC_TYPE_5
) [Console output]
:
Connected!
CR95HF is connected
Switching to: READER_MODE_ISO15693_MODE
#
# A fatal error has been detected by the Java Runtime Environment:
#
#
SIGSEGV (0xb) at pc=0x0000000120fc6dc6, pid=6714, tid=0x0000000000001803
#
# JRE version: Java(TM) SE Runtime Environment (8.0_121-b13) (build 1.8.0_121-b13)
# Java VM: Java HotSpot(TM) 64-Bit Server VM (25.121-b13 mixed mode bsd-amd64 compressed oops)
# Problematic frame:
# C
[streader.dylib+0xdc6]
Java_com_st_st25pc_model_readers_st_STReader_selectReaderMode+0x46
And sometimes I get the following, which I'm not sure what it means
[Console output]
:
Connected!
CR95HF is connected
Switching to: READER_MODE_ISO15693_MODE
=> txString 010D
<= rxString
=> txString 02A8
<= rxString
=> txString 260100
<= rxString
=> txString 060100
<= rxString
=> txString 0104
<= rxString
=> txString 0104
<= rxString
=> txString 0104
<= rxString
=> txString 0104
<= rxString
=> txString 0104
<= rxString
=> txString 0104
<= rxString
=> txString 0104
<= rxString
=> txString 0104
<= rxString
=> txString 0104
<= rxString
=> txString 0104
<= rxString
=> txString 0104
<= rxString
=> txString 0104
<= rxString
=> txString 0104
<= rxString
=> txString 0104
<= rxString
=> txString 0104
<= rxString
