Pasting object - reference comparison instead of content comparison

[Feeeeela]

I think that comparison of objectTypes should use "equals" rather than reference comparison "==".

protected void processPasteObject(String objectName, String objectType) {
if(selectedObjectPath == null || objectType == null || objectType != selectedObjectType){
LOGGER.error("Trying to paste an object that does not exist.");
}

I would change it to:
protected void processPasteObject(String objectName, String objectType) {
if(selectedObjectPath == null || objectType == null || !objectType.equals(selectedObjectType)){

In current implementation the log would write to file even if the types were similar.