8030795: java/nio/file/Files/probeContentType/ForceLoad.java failing with ServiceConfigurationError without jtreg -agentvm option

[Alan Bateman]

This test fails when run in jtreg othervm mode because there is a 
service configuration file in the directory that lists a 
FileTypeDetector that isn't compiled by the test.

There are many ways to fix this, the simplest is to just add @build tag 
to compile the dependency. I've also changed it to run in othervm mode 
because the test is to ensure that the underlying native code can be 
loaded before any other parts of the API are used.

The proposed changed is below.

-Alan


diff --git a/test/java/nio/file/Files/probeContentType/ForceLoad.java 
b/test/java/nio/file/Files/probeContentType/ForceLoad.java
--- a/test/java/nio/file/Files/probeContentType/ForceLoad.java
+++ b/test/java/nio/file/Files/probeContentType/ForceLoad.java
@@ -25,6 +25,8 @@
   * @bug 4313887
   * @summary Test library dependencies by invoking Files.probeContentType
   *     before other methods that would cause nio.dll to be loaded.
+ * @build ForceLoad SimpleFileTypeDetector
+ * @run main/othervm ForceLoad
   */