RFR 8190674: sun/security/tools/jarsigner/TimestampCheck.java failed with java.nio.file.NoSuchFileException: ts2.cert

[Weijun Wang]

Please review the fix. The comment said the test will try several times but 
when ts2.cert does not have the same size it is not regenerated at all, and a 
2nd delete fails.

diff --git a/test/jdk/sun/security/tools/jarsigner/TimestampCheck.java 
b/test/jdk/sun/security/tools/jarsigner/TimestampCheck.java
--- a/test/jdk/sun/security/tools/jarsigner/TimestampCheck.java
+++ b/test/jdk/sun/security/tools/jarsigner/TimestampCheck.java
@@ -694,11 +694,12 @@
         gencert("ts", "-ext eku:critical=ts");
 
 
-        // Issue another cert for "ts" with a different EKU.
-        // Length should be the same. Try several times.
-        keytool("-gencert -alias ca -infile ts.req -outfile ts2.cert " +
-                "-ext eku:critical=1.3.6.1.5.5.7.3.9");
         for (int i = 0; i < 5; i++) {
+            // Issue another cert for "ts" with a different EKU.
+            // Length should be the same. Try several times.
+            // If cannot create one, related test will be ignored.
+            keytool("-gencert -alias ca -infile ts.req -outfile ts2.cert " +
+                    "-ext eku:critical=1.3.6.1.5.5.7.3.9");
             if (Files.size(Paths.get("ts.cert")) != 
Files.size(Paths.get("ts2.cert"))) {
                 Files.delete(Paths.get("ts2.cert"));
                 System.out.println("Warning: cannot create same length");
             } else {
                 break;
             }
         }

Thanks
Max