FULL PRODUCT VERSION :
java version "9-ea"
Java(TM) SE Runtime Environment (build 9-ea+136-jigsaw-nightly-h5506-20160916)
Java HotSpot(TM) Client VM (build 9-ea+136-jigsaw-nightly-h5506-20160916, mixed mode)


ADDITIONAL OS VERSION INFORMATION :
Microsoft Windows [Version 6.1.7601]

A DESCRIPTION OF THE PROBLEM :
Launching web start apps doesn't work with latest Jigsaw EA builds. Similar to JDK-8152838 but with a different export missing.

REGRESSION. Last worked in version 9

ADDITIONAL REGRESSION INFORMATION:
java version "9-ea"
Java(TM) SE Runtime Environment (build 9-ea+136-jigsaw-nightly-h5506-20160916)
Java HotSpot(TM) Client VM (build 9-ea+136-jigsaw-nightly-h5506-20160916, mixed mode)


STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Deploy a web start app, try to launch it

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
App should launch and run with same behaviour as earlier JDK versions
ACTUAL -
App doesn't run

ERROR MESSAGES/STACK TRACES THAT OCCUR :
java.lang.reflect.InaccessibleObjectException: Unable to make private static java.net.InetAddress java.net.InetAddress.getByName(java.lang.String,java.net.InetAddress) throws java.net.UnknownHostException accessible: module java.base does not "exports private java.net" to module jdk.deploy
at java.base/jdk.internal.reflect.Reflection.throwInaccessibleObjectException(Reflection.java:414)
at java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:196)
at java.base/java.lang.reflect.Method.checkCanSetAccessible(Method.java:192)
at java.base/java.lang.reflect.Method.setAccessible(Method.java:186)
at jdk.deploy@9-ea/com.sun.deploy.cache.Cache$13.run(Cache.java:1998)
at jdk.deploy@9-ea/com.sun.deploy.cache.Cache$13.run(Cache.java:1986)
at java.base/java.security.AccessController.doPrivileged(Native Method)
at jdk.deploy@9-ea/com.sun.deploy.cache.Cache.getCurrentIP(Cache.java:1985)
at jdk.deploy@9-ea/com.sun.deploy.cache.Cache.isCacheEntryIPValid(Cache.java:2060)
at jdk.deploy@9-ea/com.sun.deploy.cache.Cache.getCacheEntryFromIdxFiles(Cache.java:1823)
at jdk.deploy@9-ea/com.sun.deploy.cache.Cache.getCacheEntry(Cache.java:2184)
at jdk.deploy@9-ea/com.sun.deploy.cache.Cache.getCacheEntry(Cache.java:2102)
at jdk.deploy@9-ea/com.sun.deploy.cache.Cache.getCacheEntry(Cache.java:2079)
at jdk.deploy@9-ea/com.sun.deploy.cache.ResourceProviderImpl.isUpdateAvailable(ResourceProviderImpl.java:173)
at jdk.deploy@9-ea/com.sun.deploy.cache.ResourceProviderImpl.getResource(ResourceProviderImpl.java:362)
at jdk.deploy@9-ea/com.sun.deploy.cache.ResourceProviderImpl.getResource(ResourceProviderImpl.java:321)
at jdk.deploy@9-ea/com.sun.deploy.model.ResourceProvider.getResource(ResourceProvider.java:85)
at jdk.javaws@9-ea/com.sun.javaws.jnl.LaunchDescFactory._buildDescriptor(LaunchDescFactory.java:238)
at jdk.javaws@9-ea/com.sun.javaws.jnl.LaunchDescFactory.buildDescriptor(LaunchDescFactory.java:225)
at jdk.javaws@9-ea/com.sun.javaws.jnl.LaunchDescFactory.buildDescriptor(LaunchDescFactory.java:580)
at jdk.javaws@9-ea/com.sun.javaws.Main.prepareLaunchDesc(Main.java:1052)
at jdk.plugin@9-ea/sun.plugin2.main.WebStart.launchApp(WebStart.java:167)
at jdk.plugin@9-ea/sun.plugin2.main.WebStart.continueInSecureThread(WebStart.java:138)
at jdk.plugin@9-ea/sun.plugin2.main.WebStart.access$000(WebStart.java:48)
at jdk.plugin@9-ea/sun.plugin2.main.WebStart$1.run(WebStart.java:71)
at java.base/java.lang.Thread.run(Thread.java:843)


REPRODUCIBILITY :
This bug can be reproduced always.