Reading data from input stream on unix

I have a program that reads data from input stream from the socket. If the data is over 1500 bytes it is sent in multiple TCP packets. Whats weird is, if I run the program in windows environment it waits till it receives all the packets but when I run the same program in unix environment it only reads the first packet and go further without waiting for all the TCP packets!!
The line that reads from input stream is
datalen = inStr.read(byteBuffer);is there anyway I can make it wait till it receives all the packets on unix system? I do not understand why it works fine for windows in this case but not for unix.
I'll appreciate any help..
Thanks

Try using a DataInputStream with the readfully() method.

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      l_call             UTL_DBWS.call;
      l_a_ns                     VARCHAR2(32767);
      l_wsdl_url         VARCHAR2(32767);
      l_namespace        VARCHAR2(32767);
      l_service_qname    UTL_DBWS.qname;
      l_port_qname       UTL_DBWS.qname;
      l_operation_qname  UTL_DBWS.qname;
      l_xmltype_in       SYS.XMLTYPE;
      l_xmltype_out      SYS.XMLTYPE;
      l_return           VARCHAR2(32767);
    BEGIN
      l_wsdl_url        := 'http://www.company.com/publisherService/ServiceGetpublisherTable.asmx?wsdl';
      l_namespace       := 'http://tempuri.org/';
      l_service_qname   := UTL_DBWS.to_qname(l_namespace, 'ServiceGetpublisherTable');
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      l_operation_qname := UTL_DBWS.to_qname(l_namespace, 'GetFieldsName');
      l_service := UTL_DBWS.create_service (
        wsdl_document_location => URIFACTORY.getURI(l_wsdl_url),
        service_name           => l_service_qname);
      l_call := UTL_DBWS.create_call (
        service_handle => l_service,
        port_name      => l_port_qname,
        operation_name => l_operation_qname);
      l_xmltype_in := SYS.XMLTYPE('<?xml version="1.0" encoding="utf-8"?>
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       dbms_output.put_line(l_return);     
      RETURN l_return;
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    ORA-29532: Java call terminated by uncaught Java exception: javax.xml.rpc.soap.SOAPFaultException: Server did not recognize the value of HTTP Header SOAPAction: .
    regarding the line:
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    - <s:sequence>
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      <s:any />
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      <s:element minOccurs="0" maxOccurs="1" name="password" type="s:string" />
      </s:sequence>
      </s:complexType>
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    - <s:complexType>
    - <s:sequence>
    - <s:element minOccurs="0" maxOccurs="1" name="GetMSG_ByUser_Not_ReadedResult">
    - <s:complexType>
    - <s:sequence>
      <s:element ref="s:schema" />
      <s:any />
      </s:sequence>
      </s:complexType>
      </s:element>
      </s:sequence>
      </s:complexType>
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    - <s:sequence>
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      <s:element minOccurs="0" maxOccurs="1" name="password" type="s:string" />
      <s:element minOccurs="0" maxOccurs="1" name="Rec_Id" type="s:string" />
      </s:sequence>
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      </s:element>
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    - <s:complexType>
    - <s:sequence>
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      <wsdl:output message="tns:SetMSG_ByUser_Not_Readed_As_ReadedSoapOut" />
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    - <wsdl:input>
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      </wsdl:input>
    - <wsdl:output>
      <soap:body use="literal" />
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      </wsdl:operation>
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      </wsdl:input>
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      <soap:body use="literal" />
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      </wsdl:operation>
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      </wsdl:input>
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    regards
    yair

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