Upgrade Java18 + JavaFx19

.classpath

@@ -6,6 +6,6 @@
 			<attribute name="module" value="true"/>
 		</attributes>
 	</classpathentry>
-	<classpathentry kind="con" path="org.eclipse.jdt.USER_LIBRARY/JavaFx16"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.USER_LIBRARY/JavaFx19"/>
 	<classpathentry kind="output" path="bin"/>
 </classpath>

.settings/org.eclipse.jdt.core.prefs

@@ -1,15 +1,15 @@
 eclipse.preferences.version=1
 org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
 org.eclipse.jdt.core.compiler.codegen.methodParameters=do not generate
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=17
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=18
 org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve
-org.eclipse.jdt.core.compiler.compliance=17
+org.eclipse.jdt.core.compiler.compliance=18
 org.eclipse.jdt.core.compiler.debug.lineNumber=generate
 org.eclipse.jdt.core.compiler.debug.localVariable=generate
 org.eclipse.jdt.core.compiler.debug.sourceFile=generate
 org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
 org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=enabled
 org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
-org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=ignore
+org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
 org.eclipse.jdt.core.compiler.release=disabled
-org.eclipse.jdt.core.compiler.source=17
+org.eclipse.jdt.core.compiler.source=18

src/util/LRParser.java

@@ -78,6 +78,7 @@ protected void createStates(BiFunction<Grammar, Set<I>, S> newState, S initialSt
 		}
 	}
 
+	@SuppressWarnings("preview")
 	protected boolean createActionGoToTable(Function<I, Set<String>> f) {
 		log.setLength(0);
 		for (int i=0; i<statesList.size(); i+=1) {
@@ -205,6 +206,7 @@ public <T> T put(int state, String symbol, T t) {
 		public <T> T get(int state, String symbol) {
 			return (T) get(new Key(state, symbol));
 		}
+		@SuppressWarnings("preview")
 		private int value(int state, String symbol) {
 			return switch (get(state, symbol)) { case null, default-> 0; case Integer i-> i; case Action a-> a.operand; };
 		}