Change the default visibility of //java to public; otherwise some

license checking tool cannot read //java:BUILD.

Change-Id: Ia8a4fdb0d3a15f8a564606c059cd7840ba7aeb55
ORIGINAL_AUTHOR=Thai Duong <thaidn@google.com>
GitOrigin-RevId: 70cf3b2422bd8a00a9e632f41b3231fb9e9102f7

BUILD

 # Description:
-#   Google Cloud Crypto SDK (codename "Tink") is an open source crypto library
-#   that provides Cloud customers with cryptographic functionalities needed
-#   to extend key management offering of Cloud KMS.
+#   Tink (https://github.com/google/tink) is a small crypto library that
+#   provides a safe, simple, agile and fast way to accomplish some common
+#   crypto tasks.
+
 package(default_visibility = ["//visibility:public"])
 
 licenses(["notice"])  # Apache 2.0

java/BUILD

+package(default_visibility = ["//visibility:public"])
+
 licenses(["notice"])  # Apache 2.0
 
 JAVACOPTS = [
@@ -129,6 +131,9 @@ java_library(
     srcs = glob([
         "src/test/**/*.java",
     ]),
+    visibility = [
+        "//visibility:private",
+    ],
     deps = [
         ":testonly",
         "@com_fasterxml_jackson_core//jar",