[jira] [Created] (NETBEANS-4231) Compilation errors on wrong referenced method signature not shown in java code editor

["Br Tr (Jira)" <ji...@apache.org>]

Br Tr created NETBEANS-4231:
-------------------------------

             Summary: Compilation errors on wrong referenced method signature not shown in java code editor
                 Key: NETBEANS-4231
                 URL: https://issues.apache.org/jira/browse/NETBEANS-4231
             Project: NetBeans
          Issue Type: Bug
          Components: java - Editor
    Affects Versions: 11.3
         Environment: Windows 10, netbeans runs on Amazon Corretto JDK 11.
            Reporter: Br Tr


Such errors as in the code below (a reference to the 'wrongMethod' - when the signature does not match) are not shown (not underlined in red with an error description on hovering cursor over it) in the java code editor.  This is a compilation error that's not shown.  You can see it in the 'Acion Items' window/pane though - it's the only place you can check what is wrong with the code (without compiling the project and looking at the compiler output).

Build systems checked for the issue - Gradle, Maven.
This issue slows down working with method references - an error is not visible as soon as it can be seen.

 

 
{code:java}
package some.package;

import java.util.HashMap; 
import java.util.Map;


public class NetbeansError {
  @FunctionalInterface
  public static interface FunctionalInterfaceToUse {
    void doSomething(String whatSomething);
  }
  private final Map<String, FunctionalInterfaceToUse> methodReferences = new HashMap<>();
  public NetbeansError() {
   methodReferences.put("correctReferenceKey", this::correctMethod);
   methodReferences.put("wrongReferenceKey", this::wrongMethod);// This line should be underlined in red with error description visible in the editor tooltip like other compilation errors
   }
  public void wrongMethod(Integer aStringParameterThatIsCorrect) {
  }
  public void correctMethod(String aStringParameterThatIsCorrect) {
  }
}
{code}
 



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