edit

Author: usfalami

.github/workflows/main.yml

@@ -44,7 +44,7 @@ jobs:
     - name: Set up JDK 11
       uses: actions/setup-java@v3
       with:
-        java-version: '11'
+        java-version: '17'
         distribution: 'temurin'
         server-id: ossrh
         server-username: MAVEN_USERNAME

src/main/java/org/usf/jquery/core/JDBCType.java

@@ -2,6 +2,7 @@
 
 import static java.util.Objects.isNull;
 import static java.util.Optional.empty;
+import static java.util.Optional.ofNullable;
 
 /**
  * 
@@ -72,8 +73,8 @@ public Class<?> typeClass() {
 
 	@Override
 	public boolean accept(Object o) {
-		if(o instanceof Typed) {
-			var t = ((Typed) o).getType();
+		if(o instanceof Typed v) {
+			var t = v.getType();
 			return t == this || isNull(t) || superType.isAssignableFrom(t.typeClass());
 		}
 		return isNull(o) || matcher.test(o);
@@ -99,7 +100,7 @@ public static Optional<JDBCType> typeOf(Object o) {
 		if(o instanceof Typed to) {
 			return Optional.of(to.getType());
 		}
-		return Optional.of(o).flatMap(v-> findType(e-> e.typeClass().isInstance(o)));
+		return ofNullable(o).flatMap(v-> findType(e-> e.typeClass().isInstance(o)));
 	}
 
 	public static Optional<JDBCType> fromDataType(int value) {

src/main/java/org/usf/jquery/web/RequestParser.java

@@ -21,7 +21,7 @@ public final class RequestParser {
 	private char c;
 
 	private RequestParser(String s) {
-		this.s = requireNonNull(s, "value is null");
+		this.s = s;
 		this.size = s.length();
 		this.c = size == 0 ? 0 : s.charAt(idx);
 	}
@@ -31,15 +31,17 @@ public static RequestEntryChain parseEntry(String s) {
 	}
 
 	public static List<RequestEntryChain> parseEntries(String s) {
-		return s.isEmpty() ? emptyList() : new RequestParser(s).parseEntries(true, c-> false);
+		return requireNonNull(s, "value is null").isEmpty() 
+				? emptyList() 
+				: new RequestParser(s).parseEntries(true, c-> false);
 	}
 
 	private List<RequestEntryChain> parseEntries(boolean multiple, CharPredicate until) {
 		var entries = new ArrayList<RequestEntryChain>();
 		entries.add(parseEntry());
 		if(multiple) {
 			while(c == ',') {
-				nextChar(true);
+				nextChar(false); //null parameter
 				entries.add(parseEntry());
 			}
 		}
@@ -77,7 +79,7 @@ private RequestEntryChain parseEntry() {
 			nextChar(false);
 			return new RequestEntryChain(txt, true);  //no next, no args, no tag
 		}
-		return new RequestEntryChain(legalNumber(c) || c == '-'  ? nextWhile(RequestParser::legalValChar) : null); // decimal negative?  & instant format
+		return new RequestEntryChain(legalNumber(c) || c == '-'  ? nextWhile(RequestParser::legalValChar) : null); // decimal negative? | instant format
 	}
 
 	private String nextWhile(CharPredicate cp) {