如何使用普通的Java API在RTC流中找到更改集？

Question

我使用以下代码：

 List<IChangeSetHandle> changeSetHandle = convertToChangeSetHandles(

change.getItemId().getUuidValue().toString());

IWorkspaceSearchCriteria wsSearchCriteria1 = IWorkspaceSearchCriteria.FACTORY.newInstance();
wsSearchCriteria1.setKind(IWorkspaceSearchCriteria.WORKSPACES);
wsSearchCriteria1.setExactName(connectedStreamNew.getName());
List<IWorkspaceHandle> streamHandleList1 = workspaceManager.findWorkspaces(wsSearchCriteria1,
Integer.MAX_VALUE, monitor);
ILocateChangeSetsSearchCriteria scope = ILocateChangeSetsSearchCriteria.FACTORY
.create(changeSetHandle, streamHandleList1, Collections.EMPTY_LIST, Collections.EMPTY_LIST);
IWorkspaceManager workspaceManager1 = SCMPlatform.getWorkspaceManager(repoCasa);
List<ILocateChangeSetsSearchResult> result = workspaceManager1.locateChangeSets(scope, monitor); 

但是在最后一行代码中我得到一个例外：线程“main”中的异常

java.lang.IllegalArgumentException
at com.ibm.team.scm.client.internal.WorkspaceManager.locateChangeSets(WorkspaceManager.java:252).

请帮忙