Program: 90619
Project: 90619
Buggy source:
public PortletURLProviderImpl(PortalURL url,TYPE type,PortletWindow portletWindow){
  this.url=url.clone();
  this.type=type;
  this.window=portletWindow.getId().getStringId();
  this.paramFactory=url.getPortletParameterFactory();
  if (isDebug) {
    StringBuilder txt=new StringBuilder("String_Node_Str");
    txt.append("String_Node_Str").append(type);
    txt.append("String_Node_Str").append(url.getType());
    txt.append("String_Node_Str").append(window);
    txt.append("String_Node_Str").append(url.getTargetWindow());
    LOGGER.debug(txt.toString());
  }
  if (isDebug) {
    StringBuilder txt=new StringBuilder("String_Node_Str");
    txt.append(window);
    for (    PortalURLParameter p : this.url.getParameters()) {
      if (p.getWindowId().equals(window)) {
        txt.append("String_Node_Str").append(p.getName());
        txt.append("String_Node_Str").append(p.getType());
        txt.append("String_Node_Str").append(Arrays.toString(p.getValues()));
      }
    }
    txt.append("String_Node_Str");
    PublicRenderParameterMapper mapper=this.url.getPublicRenderParameterMapper();
    List<PortalURLPublicParameter> pups=mapper.getPRPsForWindow(window,false);
    for (    PortalURLPublicParameter p : pups) {
      txt.append("String_Node_Str").append(p.getName());
      txt.append("String_Node_Str").append(p.getType());
      txt.append("String_Node_Str").append(p.isRemoved());
      txt.append("String_Node_Str").append(Arrays.toString(p.getValues()));
    }
    LOGGER.debug(txt.toString());
  }
  this.url.setTargetWindow(window);
switch (type) {
case ACTION:
    this.url.setType(URLType.Action);
  break;
case RESOURCE:
this.url.setType(URLType.Resource);
this.url.clearResourceParameters(window);
this.url.setCacheability(ResourceURL.PAGE);
break;
default :
this.url.setType(URLType.Render);
this.url.clearParameters(window);
}
if (isTrace) {
StringBuilder txt=new StringBuilder("String_Node_Str");
txt.append("String_Node_Str").append(this.url.getType());
LOGGER.debug(txt.toString());
}
}

Fixed version (ground truth):
public PortletURLProviderImpl(PortalURL url,TYPE type,PortletWindow portletWindow){
  this.url=url.clone();
  this.type=type;
  this.window=portletWindow.getId().getStringId();
  this.paramFactory=this.url.getPortletParameterFactory();
  if (isDebug) {
    StringBuilder txt=new StringBuilder("String_Node_Str");
    txt.append("String_Node_Str").append(type);
    txt.append("String_Node_Str").append(url.getType());
    txt.append("String_Node_Str").append(window);
    txt.append("String_Node_Str").append(url.getTargetWindow());
    LOGGER.debug(txt.toString());
  }
  if (isDebug) {
    StringBuilder txt=new StringBuilder("String_Node_Str");
    txt.append(window);
    for (    PortalURLParameter p : this.url.getParameters()) {
      if (p.getWindowId().equals(window)) {
        txt.append("String_Node_Str").append(p.getName());
        txt.append("String_Node_Str").append(p.getType());
        txt.append("String_Node_Str").append(Arrays.toString(p.getValues()));
      }
    }
    txt.append("String_Node_Str");
    PublicRenderParameterMapper mapper=this.url.getPublicRenderParameterMapper();
    List<PortalURLPublicParameter> pups=mapper.getPRPsForWindow(window,false);
    for (    PortalURLPublicParameter p : pups) {
      txt.append("String_Node_Str").append(p.getName());
      txt.append("String_Node_Str").append(p.getType());
      txt.append("String_Node_Str").append(p.isRemoved());
      txt.append("String_Node_Str").append(Arrays.toString(p.getValues()));
    }
    LOGGER.debug(txt.toString());
  }
  this.url.setTargetWindow(window);
switch (type) {
case ACTION:
    this.url.setType(URLType.Action);
  break;
case RESOURCE:
this.url.setType(URLType.Resource);
this.url.clearResourceParameters(window);
this.url.setCacheability(ResourceURL.PAGE);
break;
default :
this.url.setType(URLType.Render);
this.url.clearParameters(window);
}
if (isTrace) {
StringBuilder txt=new StringBuilder("String_Node_Str");
txt.append("String_Node_Str").append(this.url.getType());
LOGGER.debug(txt.toString());
}
}