Java & Java EE Fundamentals

A Java EE developer writes an EJB but never codes transaction handling, security, or database pooling. Why does the component still get those?

In a Java EE three-tier application, which tier does the AS Java server occupy, and what sits behind it?

Java bytecode is platform-independent, yet AS Java ships a different SAP JVM for each operating system. Why is that not a contradiction?

Beyond running application code, what must a Java EE server itself provide to meet fast response times and reliability?

You install SAP NetWeaver AS Java 7.3. Which JDK does the engine run on, and what changed versus earlier releases?

Why does SAP ship its own JVM for AS Java instead of using a standard Java SE JVM?

A productive AS Java system has to be debugged. What do you do to the SAP JVM to attach a debugger, and what is the impact on the running system?

SAP NetWeaver AS Java 7.3x complies with which Java EE specification level, and how did that evolve from AS Java 7.0?

In the Java EE application server, where does business logic execute versus JSPs and servlets?