8285696: AlgorithmConstraints:permits not throwing IllegalArgumentException when 'alg' is null

Backport-of: 47951655acacba515c0d69f5192257664f887dba

Author: GoeLin

src/java.base/share/classes/sun/security/util/DisabledAlgorithmConstraints.java

@@ -156,6 +156,9 @@ public DisabledAlgorithmConstraints(String propertyName,
     @Override
     public final boolean permits(Set<CryptoPrimitive> primitives,
             String algorithm, AlgorithmParameters parameters) {
+        if (algorithm == null || algorithm.isEmpty()) {
+            throw new IllegalArgumentException("No algorithm name specified");
+        }
         if (!cachedCheckAlgorithm(algorithm)) {
             return false;
         }