JDK-8153647 : Update javah to be multi-release jar aware
  • Type: Sub-task
  • Component: core-libs
  • Affected Version: 9
  • Priority: P3
  • Status: Closed
  • Resolution: Other
  • Submitted: 2016-04-06
  • Updated: 2016-06-02
  • Resolved: 2016-06-02
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JDK 9
9 b115Resolved
Related Reports
Relates :  
JDK-8149757 - Implement Multi-Release jar aware JavacFileManager for javac
Relates :  
JDK-8132734 - JDK 9 runtime changes to java.util.jar to support multi-release jar files
Description
It's possible javah does not need to be multi-release aware, so first an investigation is in order and if it needs updating, update it.
Comments
The issue requested an investigation to determine if javah is multi-release jar aware. The investigation concluded that it is. No further work is required.
02-06-2016
javah uses javac and javac is multi-release jar aware, thus javah is also multi-release jar aware. This can be demonstrated by the following test with the attached HelloWorld.jar $ javah -cp HelloWorld.jar hello.HelloWorld This creates the file hello_HelloWorld.h. Inspection of the file reveals declarations for Java_hello_HelloWorld_print and Java_hello_HelloWorld_printf Those correspond to the native methods in the META-INF/versions/9/hello/HelloWorld.class. If javah was not multi-release jar aware, the declaration for printf (Java_hello_HelloWorld_printf) would not be in the output file hello_HelloWorld.h.
02-06-2016