Program: 52042
Project: 52042
Buggy source:
/** 
 * Delete bitstream from all bundles in dspace. It can throw WebApplicationException, which can be caused by three exceptions. SQLException if there was problem with reading from database or removing from database. AuthorizeException, if user has not permission to delete bitstream or file. IOException, if there was problem with file deleting.
 * @param bitstreamId Id of bitsream, which will be deleted.
 * @param headers If you want to access to item under logged user into context. In headers must be set header "rest-dspace-token" with passed token from login method.
 * @return Return response codes: OK(200), NOT_FOUND(404) if bitstream ofthat id does not exist and UNAUTHORIZED(401) if user is not allowed to delete bitstream.
 * @throws WebApplicationException It can be throw when was problem with reading or editting database. Or problem with file deleting. Or problem with authorization to bitstream and bundles. Or problem with creating context.
 */
@DELETE @Path("String_Node_Str") public Response deleteBitstream(@PathParam("String_Node_Str") Integer bitstreamId,@QueryParam("String_Node_Str") String user_ip,@QueryParam("String_Node_Str") String user_agent,@QueryParam("String_Node_Str") String xforwarderfor,@Context HttpHeaders headers,@Context HttpServletRequest request) throws WebApplicationException {
  log.info("String_Node_Str" + bitstreamId + "String_Node_Str");
  org.dspace.core.Context context=null;
  try {
    context=createContext(getUser(headers));
    org.dspace.content.Bitstream dspaceBitstream=findBitstream(context,bitstreamId,org.dspace.core.Constants.DELETE);
    writeStats(dspaceBitstream,UsageEvent.Action.DELETE,user_ip,user_agent,xforwarderfor,headers,request);
    log.trace("String_Node_Str");
    for (    org.dspace.content.Bundle bundle : dspaceBitstream.getBundles()) {
      org.dspace.content.Bundle.find(context,bundle.getID()).removeBitstream(dspaceBitstream);
    }
    context.complete();
  }
 catch (  SQLException e) {
    processException("String_Node_Str" + bitstreamId + "String_Node_Str"+ e,context);
  }
catch (  AuthorizeException e) {
    processException("String_Node_Str" + bitstreamId + "String_Node_Str"+ e,context);
  }
catch (  IOException e) {
    processException("String_Node_Str" + bitstreamId + "String_Node_Str"+ e,context);
  }
catch (  ContextException e) {
    processException("String_Node_Str" + bitstreamId + "String_Node_Str"+ e.getMessage(),context);
  }
 finally {
    processFinally(context);
  }
  log.info("String_Node_Str" + bitstreamId + "String_Node_Str");
  return Response.ok().build();
}

Fixed version (ground truth):
/** 
 * Delete bitstream from all bundles in dspace. It can throw WebApplicationException, which can be caused by three exceptions. SQLException if there was problem with reading from database or removing from database. AuthorizeException, if user has not permission to delete bitstream or file. IOException, if there was problem with file deleting.
 * @param bitstreamId Id of bitsream, which will be deleted.
 * @param headers If you want to access to item under logged user into context. In headers must be set header "rest-dspace-token" with passed token from login method.
 * @return Return response codes: OK(200), NOT_FOUND(404) if bitstream ofthat id does not exist and UNAUTHORIZED(401) if user is not allowed to delete bitstream.
 * @throws WebApplicationException It can be throw when was problem with reading or editting database. Or problem with file deleting. Or problem with authorization to bitstream and bundles. Or problem with creating context.
 */
@DELETE @Path("String_Node_Str") public Response deleteBitstream(@PathParam("String_Node_Str") Integer bitstreamId,@QueryParam("String_Node_Str") String user_ip,@QueryParam("String_Node_Str") String user_agent,@QueryParam("String_Node_Str") String xforwarderfor,@Context HttpHeaders headers,@Context HttpServletRequest request) throws WebApplicationException {
  log.info("String_Node_Str" + bitstreamId + "String_Node_Str");
  org.dspace.core.Context context=null;
  try {
    context=createContext(getUser(headers));
    org.dspace.content.Bitstream dspaceBitstream=findBitstream(context,bitstreamId,org.dspace.core.Constants.DELETE);
    writeStats(dspaceBitstream,UsageEvent.Action.DELETE,user_ip,user_agent,xforwarderfor,headers,request,context);
    log.trace("String_Node_Str");
    for (    org.dspace.content.Bundle bundle : dspaceBitstream.getBundles()) {
      org.dspace.content.Bundle.find(context,bundle.getID()).removeBitstream(dspaceBitstream);
    }
    context.complete();
  }
 catch (  SQLException e) {
    processException("String_Node_Str" + bitstreamId + "String_Node_Str"+ e,context);
  }
catch (  AuthorizeException e) {
    processException("String_Node_Str" + bitstreamId + "String_Node_Str"+ e,context);
  }
catch (  IOException e) {
    processException("String_Node_Str" + bitstreamId + "String_Node_Str"+ e,context);
  }
catch (  ContextException e) {
    processException("String_Node_Str" + bitstreamId + "String_Node_Str"+ e.getMessage(),context);
  }
 finally {
    processFinally(context);
  }
  log.info("String_Node_Str" + bitstreamId + "String_Node_Str");
  return Response.ok().build();
}