Experimental Physics and
Industrial Control System

"Shroff, Kunal" <[email protected]> · Tue, 27 Mar 2018 16:36:48 +0000

Hello,

As Kay suggested we are simply using some of the packages with the name "corba"

https://docs.oracle.com/javase/9/docs/api/java.corba-summary.html

Currently, the two pieces we need should be available in the above module...but since it is marked for removal we will have to figure out how to handle this in the future.
https://docs.oracle.com/javase/9/docs/api/org/omg/CORBA/ShortHolder.html
https://docs.oracle.com/javase/9/docs/api/org/omg/CORBA/BooleanHolder.html

Kunal

-----Original Message-----
From: Kasemir, Kay [mailto:[email protected]] 
Sent: Tuesday, March 27, 2018 11:26 AM
To: Shroff, Kunal <[email protected]>
Cc: EPICS Core Talk <[email protected]>
Subject: pvaccess and Java 9 Re: PVA Java status

Hi:
Hi:

Kunal, for what it's worth, pva doesn't work with Java 9, because it's trying to use some corba(?!) classes.
For example, phoebus is currently using epics-pvaccess-5.1.1.jar, and runs into the error shown below.
Is that a matter of updating to the 'latest'?

Thanks,
-Kay

 [org.epics.pvaccess.client.impl.remote.ClientContextImpl] Failed to create transport for: /127.0.0.1:49194
org.epics.pvaccess.impl.remote.ConnectionException: Failed to connect to '/127.0.0.1:49194'.
	at org.epics.pvaccess.client.impl.remote.tcp.BlockingTCPConnector.connect(BlockingTCPConnector.java:163)
	at org.epics.pvaccess.client.impl.remote.ClientContextImpl.getTransport(ClientContextImpl.java:1125)
	at org.epics.pvaccess.client.impl.remote.ChannelImpl.searchResponse(ChannelImpl.java:453)
	at org.epics.pvaccess.client.impl.remote.search.SimpleChannelSearchManagerImpl.searchResponse(SimpleChannelSearchManagerImpl.java:384)
	at org.epics.pvaccess.client.impl.remote.handlers.SearchResponseHandler.handleResponse(SearchResponseHandler.java:94)
	at org.epics.pvaccess.client.impl.remote.ClientResponseHandler.handleResponse(ClientResponseHandler.java:108)
	at org.epics.pvaccess.impl.remote.udp.BlockingUDPTransport.processBuffer(BlockingUDPTransport.java:336)
	at org.epics.pvaccess.impl.remote.udp.BlockingUDPTransport.processRead(BlockingUDPTransport.java:263)
	at org.epics.pvaccess.impl.remote.udp.BlockingUDPTransport$1.run(BlockingUDPTransport.java:159)
	at java.base/java.lang.Thread.run(Thread.java:844)
Caused by: java.lang.NoClassDefFoundError: org/omg/CORBA/ShortHolder
	at org.epics.pvaccess.impl.remote.IntrospectionRegistry.<init>(IntrospectionRegistry.java:77)
	at org.epics.pvaccess.impl.remote.tcp.BlockingTCPTransport.<init>(BlockingTCPTransport.java:64)
	at org.epics.pvaccess.client.impl.remote.tcp.BlockingClientTCPTransport.<init>(BlockingClientTCPTransport.java:96)
	at org.epics.pvaccess.client.impl.remote.ClientContextImpl$1.create(ClientContextImpl.java:417)
	at org.epics.pvaccess.client.impl.remote.tcp.BlockingTCPConnector.connect(BlockingTCPConnector.java:137)
	... 9 more
Caused by: java.lang.ClassNotFoundException: org.omg.CORBA.ShortHolder
	at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:582)
	at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:185)
	at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:496)

________________________________________
From: Timo Korhonen <[email protected]>
Sent: Tuesday, March 27, 2018 9:28 AM
To: Kasemir, Kay; EPICS Core Talk
Subject: Re: PVA Java status

Hi all,

With some more investigation the issue turned out to be related to the missing PVA security features. CAS has a function ca_write_access() ...

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System