[NETBEANS-5470] Pattern matching marked as error in Java 16 project

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 12.3
• Fix Version/s: 13
• Component/s: java - Hints
• Assignee: Unassigned
• Reporter: Austin Stephens
• Created: 18/Mar/21 22:41
• Updated: 09/Jul/24 11:50
• Resolved: 09/Jul/24 11:50

Description

When one has a Java project using JDK 16 and has the source level set to 16, Netbeans still shows the use of pattern matching as an error even though it is no longer a preview feature. The code is question still compiles successfully.

 

public class Test{
	private boolean test(Object obj){
		if (obj instanceof String s){
			return s.isBlank();
		}
		return false;
	}
}

15 and 16 aren't listed in the source level drop-down for Netbeans Module projects, so you have to specify 15 or 16 directly in the properties file. That may be related, but I am not sure.