Dependency version updates

The versions used here are not the newest available, but they have been validated to work by usage in internal Netflix applications.

build.gradle

@@ -26,13 +26,13 @@ repositories {
 }
 
 dependencies {
-    implementation 'com.netflix.servo:servo-core:0.4.49'
-    implementation 'com.netflix.archaius:archaius-core:0.7.8'
-    implementation 'org.slf4j:slf4j-api:1.7.3'
-    implementation 'log4j:log4j:1.2.17'
+    implementation 'com.netflix.servo:servo-core:0.13.2'
+    implementation 'com.netflix.archaius:archaius-core:0.7.10'
+    implementation 'org.slf4j:slf4j-api:1.7.36'
+    implementation 'ch.qos.reload4j:reload4j:1.2.25'
     implementation 'commons-collections:commons-collections:3.2.2'
-    implementation 'commons-configuration:commons-configuration:1.8'
+    implementation 'commons-configuration:commons-configuration:1.10'
 
     testImplementation 'junit:junit:4.13.1'
-    testImplementation 'org.slf4j:slf4j-log4j12:1.7.3'
+    testImplementation 'org.slf4j:slf4j-reload4j:1.7.36'
 }

src/test/java/com/netflix/blitz4j/TestBlitz4j.java

@@ -22,6 +22,7 @@
 
 import org.junit.After;
 import org.junit.Assert;
+import org.junit.BeforeClass;
 import org.junit.Test;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -38,6 +39,12 @@ public class TestBlitz4j {
     private static final String consoleSummarizeEvent = "stdout_summarizeEvent";
     private static final String consoleEventsProcessed = "stdout_putInBuffer";
 
+    @BeforeClass
+    public static void setUp() {
+        // Starting with servo 0.13.x the default registry is a NoOp, but we rely on having a real one because we use collected metrics to validate behavior
+        System.setProperty("com.netflix.servo.DefaultMonitorRegistry.registryClass", "com.netflix.servo.jmx.JmxMonitorRegistry");
+    }
+
     @After
     public void tearDown() throws Exception {
         props.clear();