I use the tool you recommended in your code sample TCPMon by Apache in conjunction with STunnel5.50.

Here is the SOAP Trace:
SOAPAction: "createCursorRequest"
User-Agent: Java/1.8.0_45
Host: 127.0.0.1:8888
Connection: keep-alive
Content-Length: 982


<?xml version="1.0" encoding="UTF-8"?>
<env:Envelope xmlns:env="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:enc="http://schemas.xmlsoap.org/soap/encoding/" xmlns:ns0="http://schemas.novell.com/2005/01/GroupWise/methods">
<env:Header>
<ans1:session xmlns:ans1="http://schemas.novell.com/2005/01/GroupWise/types">14E0zBm1LsBQhbvi</ans1:session>
<ans1:gwTrace xmlns:ans1="http://schemas.novell.com/2005/01/GroupWise/types">false</ans1:gwTrace>
</env:Header>
<env:Body>
<ns0:createCursorRequest>
<ns0:container>Library@67</ns0:container>
<ns0:view>default</ns0:view>
<ns0:filter>
<ans1:element xmlns:ans1="http://schemas.novell.com/2005/01/GroupWise/types" xsi:type="ans1:FilterEntry">
<ans1:op>contains</ans1:op>
<ans1:field>Library</ans1:field>
<ans1:value>Library Document Library</ans1:value>
</ans1:element>
</ns0:filter>
</ns0:createCursorRequest>
</env:Body>
</env:Envelope>POST /soap HTTP/1.1
Content-Type: text/xml; charset=utf-8
Accept: text/xml, text/html, image/gif, image/jpeg, *; q=.2, */*; q=.2
SOAPAction: "readCursorRequest"
User-Agent: Java/1.8.0_45
Host: 127.0.0.1:8888
Connection: keep-alive
Content-Length: 820


<?xml version="1.0" encoding="UTF-8"?>
<env:Envelope xmlns:env="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:enc="http://schemas.xmlsoap.org/soap/encoding/" xmlns:ns0="http://schemas.novell.com/2005/01/GroupWise/methods">
<env:Header>
<ans1:session xmlns:ans1="http://schemas.novell.com/2005/01/GroupWise/types">14E0zBm1LsBQhbvi</ans1:session>
<ans1:gwTrace xmlns:ans1="http://schemas.novell.com/2005/01/GroupWise/types">false</ans1:gwTrace>
</env:Header>
<env:Body>
<ns0:readCursorRequest>
<ns0:container>Library@67</ns0:container>
<ns0:cursor>-1931319678</ns0:cursor>
<ns0:forward>true</ns0:forward>
<ns0:position>start</ns0:position>
<ns0:count>5</ns0:count>
</ns0:readCursorRequest>
</env:Body>
</env:Envelope>


Response:
Date: Tue, 21 May 2019 11:52:03 GMT
Server: Linux GroupWise SOA 18.1.1
Content-Type: text/xml; charset=utf-8
Content-Length: 570
Pragma: no-cache
X-Frame-Options: DENY


<?xml version="1.0" encoding="UTF-8"?>
<env:Envelope xmlns:enc="http://schemas.xmlsoap.org/soap/encoding/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:env="http://schemas.xmlsoap.org/soap/envelope/">
<env:Header/>
<env:Body>
<gwm:createCursorResponse xmlns:gwm="http://schemas.novell.com/2005/01/GroupWise/methods" xmlns:gwt="http://schemas.novell.com/2005/01/GroupWise/types">
<gwm:cursor>-1931319678</gwm:cursor>
<gwm:status>
<gwt:code>0</gwt:code>
</gwm:status>
</gwm:createCursorResponse>
</env:Body>
</env:Envelope>HTTP/1.1 200
Date: Tue, 21 May 2019 11:52:03 GMT
Server: Linux GroupWise SOA 18.1.1
Content-Type: text/xml; charset=utf-8
Content-Length: 29030
Pragma: no-cache
X-Frame-Options: DENY


<?xml version="1.0" encoding="UTF-8"?>
<env:Envelope xmlns:enc="http://schemas.xmlsoap.org/soap/encoding/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:env="http://schemas.xmlsoap.org/soap/envelope/">
<env:Header/>
<env:Body>
<gwm:readCursorResponse xmlns:gwm="http://schemas.novell.com/2005/01/GroupWise/methods" xmlns:gwt="http://schemas.novell.com/2005/01/GroupWise/types">
<gwm:items>
<gwt:item xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="gwt:Document">
<gwt:id>Library:10@68</gwt:id>
<gwt:version>10</gwt:version>
<gwt:container>Library@67</gwt:container>
<gwt:created>2003-06-11T22:12:07Z</gwt:created>
<gwt:subject>gedragsreels.pdf</gwt:subject>
<gwt:library>
<gwt:displayName>Library Document Library</gwt:displayName>
<gwt:email>Email</gwt:email>
</gwt:library>
<gwt:documentNumber>10</gwt:documentNumber>
<gwt:documentTypeName>Document</gwt:documentTypeName>
<gwt:author>
<gwt:displayName>User6</gwt:displayName>
<gwt:email>user6@company.com</gwt:email>
<gwt:uuid>6DBDBCD0-0461-0000-8F0C-C2002300AC00</gwt:uuid>
</gwt:author>
<gwt:creator>
<gwt:displayName>User6</gwt:displayName>
<gwt:email>user6@company.com</gwt:email>
<gwt:uuid>6DBDBCD0-0461-0000-8F0C-C2002300AC00</gwt:uuid>
</gwt:creator>
<gwt:officialVersion>1</gwt:officialVersion>
<gwt:currentVersion>1</gwt:currentVersion>
<gwt:current>
<gwt:entry>
<gwt:displayName>Creator Access</gwt:displayName>
<gwt:email>C</gwt:email>
<gwt:rights>
<gwt:read>1</gwt:read>
<gwt:edit>1</gwt:edit>
<gwt:delete>1</gwt:delete>
<gwt:share>1</gwt:share>
<gwt:manage>1</gwt:manage>
</gwt:rights>
</gwt:entry>
<gwt:entry>
<gwt:displayName>User5</gwt:displayName>
<gwt:email/>
<gwt:uuid>1C43A840-0454-0000-8CB7-E20029004F00</gwt:uuid>
<gwt:rights>
<gwt:read>1</gwt:read>
<gwt:edit>1</gwt:edit>
<gwt:manage>1</gwt:manage>
</gwt:rights>
</gwt:entry>
<gwt:entry>
<gwt:displayName>User3</gwt:displayName>
<gwt:email/>
<gwt:uuid>F4F5D080-13EC-0000-823E-BB0088002700</gwt:uuid>
<gwt:rights>
<gwt:read>1</gwt:read>
<gwt:edit>1</gwt:edit>
</gwt:rights>
</gwt:entry>
<gwt:entry>
<gwt:displayName>User4</gwt:displayName>
<gwt:email>user4@company.com</gwt:email>
<gwt:uuid>A23B4E80-04FE-0000-926E-657464613536</gwt:uuid>
<gwt:rights>
<gwt:read>1</gwt:read>
<gwt:edit>1</gwt:edit>
<gwt:manage>1</gwt:manage>
</gwt:rights>
</gwt:entry>
<gwt:entry>
<gwt:displayName>User 1</gwt:displayName>
<gwt:email>user1@company.com</gwt:email>
<gwt:uuid>3E996C80-11F2-0000-926E-657464613536</gwt:uuid>
<gwt:rights>
<gwt:read>1</gwt:read>
<gwt:edit>1</gwt:edit>
<gwt:manage>1</gwt:manage>
</gwt:rights>
</gwt:entry>
<gwt:entry>
<gwt:displayName>User2</gwt:displayName>
<gwt:email>user2@company.com</gwt:email>
<gwt:uuid>D33B74E0-1423-0000-B55B-D5002B006700</gwt:uuid>
<gwt:rights>
<gwt:read>1</gwt:read>
<gwt:edit>1</gwt:edit>
<gwt:manage>1</gwt:manage>
</gwt:rights>
</gwt:entry>
</gwt:current>
<gwt:official>
<gwt:entry>
<gwt:displayName>Creator Access</gwt:displayName>
<gwt:email>C</gwt:email>
<gwt:rights>
<gwt:read>1</gwt:read>
<gwt:edit>1</gwt:edit>
<gwt:delete>1</gwt:delete>
<gwt:share>1</gwt:share>
<gwt:manage>1</gwt:manage>
</gwt:rights>
</gwt:entry>
<gwt:entry>
<gwt:displayName>User5</gwt:displayName>
<gwt:email/>
<gwt:uuid>1C43A840-0454-0000-8CB7-E20029004F00</gwt:uuid>
<gwt:rights>
<gwt:read>1</gwt:read>
<gwt:edit>1</gwt:edit>
<gwt:manage>1</gwt:manage>
</gwt:rights>
</gwt:entry>
<gwt:entry>
<gwt:displayName>User3</gwt:displayName>
<gwt:email/>
<gwt:uuid>F4F5D080-13EC-0000-823E-BB0088002700</gwt:uuid>
<gwt:rights>
<gwt:read>1</gwt:read>
<gwt:edit>1</gwt:edit>
</gwt:rights>
</gwt:entry>
<gwt:entry>
<gwt:displayName>User4</gwt:displayName>
<gwt:email>user4@company.com</gwt:email>
<gwt:uuid>A23B4E80-04FE-0000-926E-657464613536</gwt:uuid>
<gwt:rights>
<gwt:read>1</gwt:read>
<gwt:edit>1</gwt:edit>
<gwt:manage>1</gwt:manage>
</gwt:rights>
</gwt:entry>
<gwt:entry>
<gwt:displayName>User 1</gwt:displayName>
<gwt:email>user1@company.com</gwt:email>
<gwt:uuid>3E996C80-11F2-0000-926E-657464613536</gwt:uuid>
<gwt:rights>
<gwt:read>1</gwt:read>
<gwt:edit>1</gwt:edit>
<gwt:manage>1</gwt:manage>
</gwt:rights>
</gwt:entry>
<gwt:entry>
<gwt:displayName>User2</gwt:displayName>
<gwt:email>user2@company.com</gwt:email>
<gwt:uuid>D33B74E0-1423-0000-B55B-D5002B006700</gwt:uuid>
<gwt:rights>
<gwt:read>1</gwt:read>
<gwt:edit>1</gwt:edit>
<gwt:manage>1</gwt:manage>
</gwt:rights>
</gwt:entry>
</gwt:official>
<gwt:other>
<gwt:entry>
<gwt:displayName>Creator Access</gwt:displayName>
<gwt:email>C</gwt:email>
<gwt:rights>
<gwt:read>1</gwt:read>
<gwt:edit>1</gwt:edit>
<gwt:delete>1</gwt:delete>
<gwt:share>1</gwt:share>
<gwt:manage>1</gwt:manage>
</gwt:rights>
</gwt:entry>
<gwt:entry>
<gwt:displayName>User5</gwt:displayName>
<gwt:email/>
<gwt:uuid>1C43A840-0454-0000-8CB7-E20029004F00</gwt:uuid>
<gwt:rights>
<gwt:read>1</gwt:read>
<gwt:edit>1</gwt:edit>
<gwt:manage>1</gwt:manage>
</gwt:rights>
</gwt:entry>
<gwt:entry>
<gwt:displayName>User3</gwt:displayName>
<gwt:email/>
<gwt:uuid>F4F5D080-13EC-0000-823E-BB0088002700</gwt:uuid>
<gwt:rights>
<gwt:read>1</gwt:read>
<gwt:edit>1</gwt:edit>
</gwt:rights>
</gwt:entry>
<gwt:entry>
<gwt:displayName>User4</gwt:displayName>
<gwt:email>user4@company.com</gwt:email>
<gwt:uuid>A23B4E80-04FE-0000-926E-657464613536</gwt:uuid>
<gwt:rights>
<gwt:read>1</gwt:read>
<gwt:edit>1</gwt:edit>
<gwt:manage>1</gwt:manage>
</gwt:rights>
</gwt:entry>
<gwt:entry>
<gwt:displayName>User 1</gwt:displayName>
<gwt:email>user1@company.com</gwt:email>
<gwt:uuid>3E996C80-11F2-0000-926E-657464613536</gwt:uuid>
<gwt:rights>
<gwt:read>1</gwt:read>
<gwt:edit>1</gwt:edit>
<gwt:manage>1</gwt:manage>
</gwt:rights>
</gwt:entry>
<gwt:entry>
<gwt:displayName>User2</gwt:displayName>
<gwt:email>user2@company.com</gwt:email>
<gwt:uuid>D33B74E0-1423-0000-B55B-D5002B006700</gwt:uuid>
<gwt:rights>
<gwt:read>1</gwt:read>
<gwt:edit>1</gwt:edit>
<gwt:manage>1</gwt:manage>
</gwt:rights>
</gwt:entry>
</gwt:other>
</gwt:item>
<gwt:item xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="gwt:Document">
<gwt:id>Library:20@68</gwt:id>
<gwt:version>12</gwt


Regards,
Ntando