javac shows deprecation warnings when @DeleGate annotation used with deprecated method.

LombokDelegateOnDeprecateSample.java

import lombok.Delegate;
import java.sql.ResultSet;

public class LombokDelegateOnDeprecateSample {
    private static class MyResultSet {
        @Delegate private final ResultSet rs;
        public MyResultSet(ResultSet rs) {
            this.rs = rs;
        }
    }
}

$ javac -Xlint:deprecation -cp lombok.jar LombokDelegateOnDeprecateSample.java
warning: [deprecation] getBigDecimal(int,int) in ResultSet has been deprecated
warning: [deprecation] getUnicodeStream(int) in ResultSet has been deprecated
warning: [deprecation] getBigDecimal(String,int) in ResultSet has been deprecated
warning: [deprecation] getUnicodeStream(String) in ResultSet has been deprecated
4 warnings