Update jline 3.21.0

- Fixes #331

Author: jvalkeal

pom.xml

@@ -22,7 +22,7 @@
 	</scm>
 
 	<properties>
-		<jline.version>3.4.0</jline.version>
+		<jline.version>3.21.0</jline.version>
 		<assertj.version>3.8.0</assertj.version>
 		<java.version>1.8</java.version>
 		<jcommander.version>1.81</jcommander.version>

spring-shell-core/src/main/java/org/springframework/shell/LineReaderAutoConfiguration.java

@@ -17,6 +17,7 @@
 
 import java.io.IOException;
 import java.nio.file.Paths;
+import java.util.regex.Pattern;
 
 import org.jline.reader.Completer;
 import org.jline.reader.Highlighter;
@@ -87,6 +88,14 @@ public AttributedString highlight(LineReader reader, String buffer) {
 							return new AttributedString(buffer, AttributedStyle.DEFAULT.foreground(AttributedStyle.RED));
 						}
 					}
+
+					@Override
+					public void setErrorPattern(Pattern errorPattern) {
+					}
+
+					@Override
+					public void setErrorIndex(int errorIndex) {
+					}
 				})
 				.parser(parser);