IBM User Guide for Java V7 on Windows > IBM SDK for Java > The Java Native Interface (JNI) > The JNI and the Garbage Collector > JNI transitions

N2J transitions

For native code to call Java™ code (N2J) in the current thread, the thread must first be attached to the JVM in the current process.

Every N2J call that passes object references must have obtained them using JNI, therefore they are either valid local or global JNI refs. Any object references returned from the call are JNI local references.

Parent: JNI transitions

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