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allocateBuffer() added the Lc byte even when dataIn was empty, producing a 6-byte APDU (header + Lc=00 + Le) instead of the expected 5-byte case 2 APDU. The extra trailing byte made ApduUtil::isCase4() report a case 4 command, which led the reader adapter to issue a spurious Get Response. Align the allocation with the Java reference implementation and add the missing unit test.
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al3xwq
approved these changes
Sep 22, 2026
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allocateBuffer() added the Lc byte even when dataIn was empty, producing a 6-byte APDU (header + Lc=00 + Le) instead of the expected 5-byte case 2 APDU. The extra trailing byte made ApduUtil::isCase4() report a case 4 command, which led the reader adapter to issue a spurious Get Response. Align the allocation with the Java reference implementation and add the missing unit test.