On 4/08/2018 10:29 PM, mr rupplin wrote:
Any help?

Patience is a virtue. ;-)

As Alan indicated in older releases, like 9, there is a mapfile used to tell the linker about exported entry points to native libraries. As you are using OpenJDK 9 you will need to add the appropriate entry in

jdk/make/mapfiles/libjava/mapfile-vers

David
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________________________________
From: mr rupplin <mea...@outlook.com>
Sent: Friday, August 3, 2018 9:42:26 AM
To: Alan Bateman; core-libs-dev@openjdk.java.net
Subject: Re: System.java Development Question

This is an OpenJDK 9 build.  Can you explain?  I'm very interested in getting 
all the details understood.  Hey thanks!

MR
________________________________
From: Alan Bateman <alan.bate...@oracle.com>
Sent: Friday, August 3, 2018 9:38 AM
To: mr rupplin; core-libs-dev@openjdk.java.net
Subject: Re: System.java Development Question

On 03/08/2018 06:22, mr rupplin wrote:
:


We get the following after running a trivial Java program:

Exception in thread "main" java.lang.UnsatisfiedLinkError: 
java.lang.System.setMemoryAllocationListener0(Ljava/lang/memory/MemoryAllocationListener;)V
at java.base/java.lang.System.setMemoryAllocationListener0(Native Method)
at java.base/java.lang.System.setMemoryAllocationListener(System.java:261)
at Hope.<init>(Hope.java:19)
at Hope.main(Hope.java:11)


-- --

Can we skip right to it?  What is the issue here?

Which JDK build is this? I can't tell if it has the map files used by
the linker (mapfile-vers in the case of libjava) or not. The map files
don't exist in the main line but they may exist if you are working on a
patch for a previous release.

-Alan

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