Need to delete local references in the context of unknown call

Hello

I was looking for the need to remove local references and came across this documentation,
That means the calling context unknown? and how it causes no local references to remain allocated in the reference table that returns the native function?



http://Java.Sun.com/docs/books/JNI/HTML/refs.html

5.2.1 releasing local references

You want to write a utility function that is called from unfamiliar contexts. MyNewString in Section 4.3 example illustrates the use of Delete-LocalRef to remove local references promptly in a utility function. Otherwise, there will be two local references that remains allocated after each call to the function MyNewString.

How does it cause local references to remain allocated in the reference table that returns the native function?

Because it does not refer to the JVM when it gets released, he returned to the context of unknown number, i.e. an another piece of native code in your JNI layer. If the references remain until the unknown caller's context returns to the JVM.

Tags: Java

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