Here is a nice article about ABAP vs JAVA named "How to Get the Most Out of ABAP and Java in the Context of SAP Technology". It provides answers for some of the popular questions such as "What Is the Future of ABAP and Java at SAP?".
SDN link;
http://www.sdn.sap.com/irj/sdn/index?rid=/library/uuid/10f8e152-0da0-2e10-f9af-8eef7b9bbe15
SAP insider link;
ARTICLE : How to get Most Out of ABAP and Java in the Context of SAP Technology
Abstract :
Is ABAP better than Java? Or is Java better than ABAP? This first article in a two-part series shows you that it isn't a question of which development language is better; the choice depends on the situation, and sometimes the answer is both. This article offers three questions to consider at the start of your decision-making process, and then looks at a scenario in which ABAP is the best option.
