This is an issue only with exploded build.

Please refer to the test output below:

java.security.AccessControlException: access denied ("java.io.FilePermission" "/home/felix/jdk10/build/linux-x86_64-normal-server-release/jdk/modules" "read")
at java.base/java.security.AccessControlContext.checkPermission(AccessControlContext.java:472)
at java.base/java.security.AccessController.checkPermission(AccessController.java:895)
at java.base/java.lang.SecurityManager.checkPermission(SecurityManager.java:558)
at java.base/java.lang.SecurityManager.checkRead(SecurityManager.java:897)
at java.base/sun.nio.fs.UnixPath.checkRead(UnixPath.java:818)
at java.base/sun.nio.fs.UnixFileSystemProvider.checkAccess(UnixFileSystemProvider.java:291)
at java.base/java.nio.file.Files.notExists(Files.java:2477)
at java.base/jdk.internal.jrtfs.SystemImage.open(SystemImage.java:76)
at java.base/jdk.internal.jrtfs.JrtFileSystem.<init>(JrtFileSystem.java:90)
at java.base/jdk.internal.jrtfs.JrtFileSystemProvider.newFileSystem(JrtFileSystemProvider.java:108)
at java.base/java.nio.file.FileSystems.newFileSystem(FileSystems.java:344)
at java.base/java.nio.file.FileSystems.newFileSystem(FileSystems.java:293)
at WithSecurityManager.main(WithSecurityManager.java:65)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:564)
at com.sun.javatest.regtest.agent.MainWrapper$MainThread.run(MainWrapper.java:115)
at java.base/java.lang.Thread.run(Thread.java:844)