Getting URL invalid error when trying to GET a Query in JAVA

When i try to access the belwo query from Poster to retrive the folder of the artifact i get the expected result but when i try to do the same programmatically , i am getting invalid URL error :-

Query :-
  String queryParam3 = "&oslc.prefix="
    + URLEncoder.encode("dcterms=<http://purl.org/dc/terms/>",
      "UTF8")
    + ","
    + URLEncoder.encode("oslc=<http://open-services.net/ns/core#>",
      "UTF8")
    + ","
    + URLEncoder.encode("nav=<http://com.ibm.rdm/navigation#>",
      "UTF8")
    + ","
    + URLEncoder.encode("rrmNav=<http://com.ibm.rdm/navigation#>",
      "UTF8")
    + "&oslc.select=" + URLEncoder.encode("dcterms:title", "UTF8") +

    "&oslc.where=" + URLEncoder.encode("dcterms:title=", "UTF8")
    + "%22" + URLEncoder.encode(deliverableType, "UTF8") + "%22"
    + "&oslc.where=" + URLEncoder.encode("nav:parent=<", "UTF8")
    + URLEncoder.encode(templateFolderServiceURI, "UTF8") + ">";

Getting error while executing the above query.Maybe the issue is with the two oslc:where condition used.