Update log4j used by the java console to 2.17 (#80)

* Update log4j used by the java console to 2.17

* Update build.gradle

* Update Local.md

Specify the required Gradle version in prerequisites

Author: tinaselenge

kafka-java-console-sample/build.gradle

@@ -36,8 +36,9 @@ repositories {
 
 dependencies {
   implementation 'org.apache.kafka:kafka-clients:2.7.+'
-  implementation 'log4j:log4j:1.2.17'
-  implementation 'org.slf4j:slf4j-log4j12:1.7.25'
+  implementation group: 'org.apache.logging.log4j', name: 'log4j-core', version: '2.17.+'
+  implementation group: 'org.apache.logging.log4j', name: 'log4j-api', version: '2.17.+'
+  implementation 'org.apache.logging.log4j:log4j-slf4j-impl:2.17.+'
   implementation 'com.fasterxml.jackson.core:jackson-databind:2.9.+'
 }
 

kafka-java-console-sample/docs/Local.md

@@ -20,7 +20,7 @@ We will not discuss establishing a connection from your laptop to Event Streams
 2. **If you don't already have them, install the following prerequisites:**
 
 	* [git](https://git-scm.com/)
-	* [Gradle](https://gradle.org/)
+	* [Gradle 7 or higher](https://gradle.org/)
 	* Java 8 or higher
 
 
@@ -133,4 +133,4 @@ We will not discuss establishing a connection from your laptop to Event Streams
    When the producer starts, messages are produced to the topic. Messages are then consumed from the topic by the consuming application.
    You can verify the successful flow of messages when you see `INFO Message consumed` from the consumer. 
 
-   The sample runs indefinitely until you stop it. To stop the process, run an exit command `Ctrl+C`.
+   The sample runs indefinitely until you stop it. To stop the process, run an exit command `Ctrl+C`.

kafka-java-console-sample/src/main/resources/log4j.properties

@@ -0,0 +1,7 @@
+rootLogger.level=info
+rootLogger.appenderRef.console.ref=STDOUT
+
+appender.console.type=Console
+appender.console.name=STDOUT
+appender.console.layout.type=PatternLayout
+appender.console.layout.pattern=[%d] %p %m (%c)%n