To reproduce,
issue single
"r"

to "Communication session". (use next VTS nightly/promoted build)

java.lang.IllegalArgumentException: The buffer has a zero-capacity
 - .unknown...unknown.(), bci=21
 - .unknown...unknown.(), bci=2
 - .unknown...unknown.(), bci=2
 - com/oracle/tests/jdk/dio/spibus/SPIDevice/SessionTests.processSession(), bci=786
 - com/oracle/tests/jdk/dio/spibus/SPIDevice/SessionTests.testSession(), bci=23
 - com/oracle/tests/jdk/dio/spibus/SPIDevice/SessionTests.runTestCases(), bci=11
 - com/sun/tck/cldc/lib/MultiTest.run(MultiTest.java:150)
 - com/sun/tck/cldc/javatest/agent/CldcAgent.executeTest(CldcAgent.java:200)
 - com/sun/tck/cldc/javatest/agent/CldcAgent.executeTest(CldcAgent.java:243)
 - com/sun/tck/cldc/javatest/agent/CldcAgent.handleRequest(CldcAgent.java:170)
 - com/sun/tck/cldc/javatest/agent/CldcAgent.run(CldcAgent.java:113)
 - com/sun/tck/cldc/javatest/agent/CldcAgent.execute(CldcAgent.java:58)
 - com/sun/tck/midp/javatest/agent/MIDletAgent.executeTests(MIDletAgent.java:230)
 - com/sun/tck/midp/javatest/agent/MIDletAgent.run(MIDletAgent.java:204)
 - java/lang/Thread.run(), bci=5