8207318: KeyStore#getInstance(File, LoadStoreParameter) does not load the keystore

Reviewed-by: mullan

src/java.base/share/classes/java/security/KeyStore.java

@@ -1807,6 +1807,7 @@ public class KeyStore {
                     keystore.load(dataStream, password);
                 } else {
                     keystore.keyStoreSpi.engineLoad(dataStream, param);
+                    keystore.initialized = true;
                 }
                 return keystore;
             }

test/jdk/java/security/KeyStore/ProbeKeystores.java

@@ -23,7 +23,7 @@
 
 /*
  * @test
- * @bug 8044445 8194307
+ * @bug 8044445 8194307 8207318
  * @summary test new methods from JEP-229: Create PKCS12 Keystores by Default
  */
 
@@ -180,7 +180,8 @@ public class ProbeKeystores {
             throw new Exception("ERROR: expected a " + type + " keystore, " +
                 "got a " + ks.getType() + " keystore instead");
         } else {
-            System.out.println("Probed a " + type + " keystore named '" + file + "'");
+            System.out.println("Probed a " + type + " keystore named '" + file
+                    + "' with " + ks.size() + " entries");
         }
 
         // Next try with an incorrect password
@@ -197,7 +198,8 @@ public class ProbeKeystores {
             throw new Exception("ERROR: expected a " + type + " keystore, " +
                 "got a " + ks.getType() + " keystore instead");
         } else {
-            System.out.println("Probed a " + type + " keystore named '" + file + "'");
+            System.out.println("Probed a " + type + " keystore named '" + file
+                    + "' with " + ks.size() + " entries");
         }
 
         // Next try with an incorrect password within a LoadStoreParameter