src/java.base/share/classes/java/security/cert/PolicyQualifierInfo.java

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rev 10521 : 8055723[core]: Replace concat String to append in StringBuilder parameters
Contributed-by: Otavio Santana <otaviojava@java.net>

@@ -156,18 +156,20 @@
      *
      * @return a {@code String} describing the contents of this
      *         {@code PolicyQualifierInfo}
      */
     public String toString() {
-        if (pqiString != null)
+        if (pqiString != null) {
             return pqiString;
+        }
         HexDumpEncoder enc = new HexDumpEncoder();
         StringBuilder sb = new StringBuilder();
         sb.append("PolicyQualifierInfo: [\n");
-        sb.append("  qualifierID: " + mId + "\n");
-        sb.append("  qualifier: " +
-            (mData == null ? "null" : enc.encodeBuffer(mData)) + "\n");
-        sb.append("]");
+        sb.append("  qualifierID: ").append(mId).append('\n');
+        sb.append("  qualifier: ")
+                .append(mData == null ? "null" : enc.encodeBuffer(mData))
+                .append('\n');
+        sb.append(']');
         pqiString = sb.toString();
         return pqiString;
     }
 }