Set the JDK_HOME and path of the Bin Directory
Change the memmory of the JBOSS - As like Selected the screenshots
Create SCHEMA through Prepared Statement As like MARK in Yellow Colored on Command prompt. here some attribute must have to mention i.e
SID - ORACLE_HOME - XELLSYS_USER - XELLSYS_PASSWORD - XELLSYS TABLE SPACE - DIRECTORY FILE PATH - DATABASE-SCHEMA NAME - TEMPRORARY TABLE SPACE NAME AND PASSWORD OF SYS and SYSTEM USer of the Oracle password