The test java/util/ArrayDeque/WhiteBox.java isn't part of the jdk_collections test group as defined in the test/jdk/TEST.groups file.

Either TEST.groups should be modified to include the ArrayDeque subdirectory, or the WhiteBox.java test should be moved into the Deque subdirectory.

This isn't a terribly big deal, as the test gets run as part of the jdk_util_other test group (which is a catch-all group). But it is odd that this test isn't part of the jdk_collections tests group.