Hi Tom, Add-Exports option in manifest is used if and only if jar is executed via 'java -jar your.jar' command. The manifest Add-Exports option is ignored for jars on classpath.
Rio On Wed, Aug 16, 2017 at 10:30 PM, Tom Hood <tom.w.h...@gmail.com> wrote: > Hi, > > I need a little help understanding the difference between "Add-Exports:" in > a jar's manifest vs. the command line arg --add-exports. I can get > --add-exports to work, but not Add-Exports. > > JDK Version: 9 build 181 windows 64 > > Slide 23 of http://openjdk.java.net/projects/jigsaw/talks/prepare- > for-jdk9-j1-2016.pdf seems to suggest Add-Exports in the manifest as an > alternative to --add-exports > > Our webstart-launched app requires a long list of --add-module and/or > --add-exports command line options. The list is long enough that it > exceeds a limit on number of args and webstart fails to launch the app with > the popup "too many args to run". > > Specifically, I was trying to allow jai_imageio.jar (1.0_01) to access > java.base/sun.security.action by adding > --add-exports=java.base/sun.security.action=ALL-UNNAMED > to the java-vm-args in the jnlp. However, that one additional arg pushed > it over the edge and exceeded the limit. > > This is the full j2se element in our jnlp: > > <j2se version="1.9+" initial-heap-size="32m" max-heap-size="3072m" > java-vm-args="--add-modules=java.corba --add-exports > java.desktop/com.sun.java.swing.plaf.windows=ALL-UNNAMED --add-exports > java.desktop/sun.swing=ALL-UNNAMED --add-exports > java.desktop/sun.awt=ALL-UNNAMED --add-exports > java.desktop/sun.awt.image=ALL-UNNAMED --add-exports > java.desktop/sun.awt.windows=ALL-UNNAMED --add-exports > java.desktop/sun.awt.shell=ALL-UNNAMED --add-exports > java.desktop/sun.awt.dnd=ALL-UNNAMED --add-exports > java.base/sun.security.action=ALL-UNNAMED --add-exports=java.base/sun.se > curity.action=ALL-UNNAMED"/> > > I then removed the last --add-exports to keep under the arg limit and > instead added an Add-Exports line to the jai_imageio.jar > META-INF/MANIFEST.MF > > Add-Exports: java.base/sun.security.action > > That doesn't appear to be taking affect. Am I using it incorrectly? > > Thanks, > -- Tom > -- -- Richard Opalka Principal Software Engineer Red Hat JBoss Middleware Mobile: +420 731 186 942 E-mail: ropa...@redhat.com
