Thnak you for your prompt response. The error message above is in toal which observed in applicaton (Eclipse IDE for Java Developers Version: Oxygen.3a Release (4.7.3a) Build id: 20180405-1200 OS: Windows 10, v.10.0, x86_64 / win32) (I used to call Jasper report from the above IDE) Again I tried in TIBCO with mannually inserting the charateres in question in the field and tries "preview" which throw a message as below. java.lang.ArrayIndexOutOfBoundsException: 40 . The letter in question is "സ്റ്റ" thank you in advance