patch to make sure PSQLState is Serializable and a test case to prove it
patch to make sure PSQLState is Serializable and a test case to prove it

AlexElin/pgjdbc,jorsol/pgjdbc,pgjdbc/pgjdbc,lonnyj/pgjdbc,zapov/pgjdbc,golovnin/pgjdbc,jamesthomp/pgjdbc,phillipross/pgjdbc,bocap/pgjdbc,sehrope/pgjdbc,pgjdbc/pgjdbc,ekoontz/pgjdbc,alexismeneses/pgjdbc,jkutner/pgjdbc,zemian/pgjdbc,schlosna/pgjdbc,thkoch2001/libpostgresql-jdbc-java,sehrope/pgjdbc,amozhenin/pgjdbc,thkoch2001/libpostgresql-jdbc-java,rjmac/pgjdbc,rjmac/pgjdbc,marschall/pgjdbc,whitingjr/pgjdbc,Gordiychuk/pgjdbc,pgjdbc/pgjdbc,Gordiychuk/pgjdbc,golovnin/pgjdbc,tivv/pgjdbc,bocap/pgjdbc,davecramer/pgjdbc,underyx/pgjdbc,jamesthomp/pgjdbc,sehrope/pgjdbc,lordnelson/pgjdbc,amozhenin/pgjdbc,lordnelson/pgjdbc,zemian/pgjdbc,davecramer/pgjdbc,zapov/pgjdbc,sehrope/pgjdbc,whitingjr/pgjdbc,underyx/pgjdbc,zemian/pgjdbc,ekoontz/pgjdbc,davecramer/pgjdbc,panchenko/pgjdbc,tivv/pgjdbc,marschall/pgjdbc,lonnyj/pgjdbc,rjmac/pgjdbc,amozhenin/pgjdbc,alexismeneses/pgjdbc,Gordiychuk/pgjdbc,jorsol/pgjdbc,jorsol/pgjdbc,golovnin/pgjdbc,jamesthomp/pgjdbc,zapov/pgjdbc,lordnelson/pgjdbc,jkutner/pgjdbc,pgjdbc/pgjdbc,panchenko/pgjdbc,jkutner/pgjdbc,phillipross/pgjdbc,phillipross/pgjdbc,panchenko/pgjdbc,thkoch2001/libpostgresql-jdbc-java,whitingjr/pgjdbc,schlosna/pgjdbc,marschall/pgjdbc,AlexElin/pgjdbc,AlexElin/pgjdbc,davecramer/pgjdbc,bocap/pgjdbc,underyx/pgjdbc,marschall/pgjdbc,jorsol/pgjdbc