JHttpGetURL test causes error on RHEL 3.0 with 1.3.1

This is not a regression

The following output is produced when the JHttpGetURL test runs on RHEL 3.0

ERROR: http://qt0:11000/html/embedded.html: cannot read data from URL.
ERROR: null
sun.io.MalformedInputException
        at sun.io.ByteToCharUTF8.convert(ByteToCharUTF8.java:147)
        at java.io.InputStreamReader.convertInto(InputStreamReader.java:132)
        at java.io.InputStreamReader.fill(InputStreamReader.java:181)
        at java.io.InputStreamReader.read(InputStreamReader.java:244)
        at java.io.BufferedReader.fill(BufferedReader.java:134)
        at java.io.BufferedReader.readLine(BufferedReader.java:294)
        at java.io.BufferedReader.readLine(BufferedReader.java:357)
        at FileUtils.compareFiles(FileUtils.java:30)
        at JHttpGetURL.doTestURL(JHttpGetURL.java:175)
        at JHttpGetURL.main(JHttpGetURL.java:87)

Also in the same Networking test suite whilst running the udp tests the following error occurs

-bash-2.05b$ /usr/bin/ksh run_udp_client qt0
java version "1.3.1_12"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.3.1_12-b02)
Java HotSpot(TM) Client VM (build 1.3.1_12-b02, interpreted mode)
java full version "1.3.1_12-b02"
DTI_DoneInitializing
DTI_DoneExecuting
FINALSTATUS:udpClient:EXIT_PASS:0:TEST PASSED
DTI_DoneInitializing
DTI_DoneExecuting
FINALSTATUS:udpClient:EXIT_PASS:0:TEST PASSED
DTI_DoneInitializing
DTI_DoneExecuting
FINALSTATUS:udpClient:EXIT_PASS:0:TEST PASSED
DTI_DoneInitializing
DTI_DoneExecuting
FINALSTATUS:udpClient:EXIT_PASS:0:TEST PASSED
DTI_DoneInitializing
DTI_DoneExecuting
FINALSTATUS:udpClient:EXIT_PASS:0:TEST PASSED
DTI_DoneInitializing
DTI_DoneExecuting
FINALSTATUS:udpClient:EXIT_PASS:0:TEST PASSED
DTI_DoneInitializing
ERROR: udpServer not responding after 20 resends of datagram message #0
DTI_Error
DTI_DoneExecuting
FINALSTATUS:udpClient:EXIT_ERROR:2:Number of ERRORS:1:TEST INCOMPLETE

This behaviour is also seen with 1.3.1_09