Public bug reported:

After upgrading from 8u181-b13-0ubuntu0.16.04.1 to
8u181-b13-1ubuntu0.16.04.1 (i386 build) we've been seeing a file
permissions issue that prevents anything running inside of the JVM from
reading files that do exist. This was working correctly prior to the
update.

I've also confirmed the issue by launching the code from a server that
has yet to be updated, and also by rolling the server back and able to
run the code on the previous package version.

Stack trace from trying to launch application in question:

Exception in thread "main" java.lang.SecurityException: Untrusted manifest 
entry: org/jdom/
        at java.util.jar.Manifest.getTrustedAttributes(Manifest.java:155)
        at 
java.util.jar.JavaUtilJarAccessImpl.getTrustedAttributes(JavaUtilJarAccessImpl.java:65)
        at java.net.URLClassLoader.definePackage(URLClassLoader.java:496)
        at 
java.net.URLClassLoader.definePackageInternal(URLClassLoader.java:423)
        at java.net.URLClassLoader.defineClass(URLClassLoader.java:452)
        at java.net.URLClassLoader.access$100(URLClassLoader.java:74)
        at java.net.URLClassLoader$1.run(URLClassLoader.java:369)
        at java.net.URLClassLoader$1.run(URLClassLoader.java:363)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:362)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
        at 
jrunx.server.ServerManagement.getServersMetaData(ServerManagement.java:70)
        at jrunx.kernel.JRun.main(JRun.java:157)
java.lang.SecurityException: Untrusted manifest entry: org/jdom/
        at java.util.jar.Manifest.getTrustedAttributes(Manifest.java:155)
        at 
java.util.jar.JavaUtilJarAccessImpl.getTrustedAttributes(JavaUtilJarAccessImpl.java:65)
        at java.net.URLClassLoader.definePackage(URLClassLoader.java:496)
        at 
java.net.URLClassLoader.definePackageInternal(URLClassLoader.java:423)
        at java.net.URLClassLoader.defineClass(URLClassLoader.java:452)
        at java.net.URLClassLoader.access$100(URLClassLoader.java:74)
        at java.net.URLClassLoader$1.run(URLClassLoader.java:369)
        at java.net.URLClassLoader$1.run(URLClassLoader.java:363)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:362)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
        at 
jrunx.server.ServerManagement.refreshServersMetaData(ServerManagement.java:82)
        at 
jrunx.server.ServerManagement.getServerRootDirectory(ServerManagement.java:154)
        at 
jrunx.server.ServerManagement.getServerProperties(ServerManagement.java:191)
        at 
jrunx.server.ServerManagement.getSystemProperties(ServerManagement.java:204)
        at jrunx.kernel.JRun.setSystemProperties(JRun.java:688)
        at jrunx.kernel.JRun.start(JRun.java:337)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at jrunx.kernel.JRun.invoke(JRun.java:180)
        at jrunx.kernel.JRun.main(JRun.java:168)
java.lang.SecurityException: Untrusted manifest entry: org/jdom/
        at java.util.jar.Manifest.getTrustedAttributes(Manifest.java:155)
        at 
java.util.jar.JavaUtilJarAccessImpl.getTrustedAttributes(JavaUtilJarAccessImpl.java:65)
        at java.net.URLClassLoader.definePackage(URLClassLoader.java:496)
        at 
java.net.URLClassLoader.definePackageInternal(URLClassLoader.java:423)
        at java.net.URLClassLoader.defineClass(URLClassLoader.java:452)
        at java.net.URLClassLoader.access$100(URLClassLoader.java:74)
        at java.net.URLClassLoader$1.run(URLClassLoader.java:369)
        at java.net.URLClassLoader$1.run(URLClassLoader.java:363)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:362)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
        at 
jrunx.server.ServerManagement.refreshServersMetaData(ServerManagement.java:82)
        at 
jrunx.server.ServerManagement.getServerRootDirectory(ServerManagement.java:154)
        at 
jrunx.server.ServerManagement.getServerProperties(ServerManagement.java:191)
        at 
jrunx.server.ServerManagement.getSystemProperties(ServerManagement.java:204)
        at jrunx.kernel.JRun.setSystemProperties(JRun.java:688)
        at jrunx.kernel.JRun.<init>(JRun.java:442)
        at jrunx.kernel.JRun$1.run(JRun.java:346)
        at java.security.AccessController.doPrivileged(Native Method)
        at jrunx.kernel.JRun.start(JRun.java:343)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at jrunx.kernel.JRun.invoke(JRun.java:180)
        at jrunx.kernel.JRun.main(JRun.java:168)
java.lang.SecurityException: Untrusted manifest entry: org/jdom/
        at java.util.jar.Manifest.getTrustedAttributes(Manifest.java:155)
        at 
java.util.jar.JavaUtilJarAccessImpl.getTrustedAttributes(JavaUtilJarAccessImpl.java:65)
        at java.net.URLClassLoader.definePackage(URLClassLoader.java:496)
        at 
java.net.URLClassLoader.definePackageInternal(URLClassLoader.java:423)
        at java.net.URLClassLoader.defineClass(URLClassLoader.java:452)
        at java.net.URLClassLoader.access$100(URLClassLoader.java:74)
        at java.net.URLClassLoader$1.run(URLClassLoader.java:369)
        at java.net.URLClassLoader$1.run(URLClassLoader.java:363)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:362)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
        at 
jrunx.server.ServerManagement.refreshServersMetaData(ServerManagement.java:82)
        at 
jrunx.server.ServerManagement.getServerRootDirectory(ServerManagement.java:154)
        at 
jrunx.server.ServerManagement.getServerRootDirectoryFile(ServerManagement.java:171)
        at jrunx.kernel.JRun.<init>(JRun.java:455)
        at jrunx.kernel.JRun$1.run(JRun.java:346)
        at java.security.AccessController.doPrivileged(Native Method)
        at jrunx.kernel.JRun.start(JRun.java:343)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at jrunx.kernel.JRun.invoke(JRun.java:180)
        at jrunx.kernel.JRun.main(JRun.java:168)

server "xxxxxx" does not exist, the server root null was not found.
Please verify that the /xxxxxxxxxx/servers.xml file contains valid data
for this server.

Not that this may be either a permissions issue, or an issue with an xml
library.

** Affects: openjdk-8 (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1801740

Title:
  file permission issues after update

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