simplifying log lib in tests

Author: q3769

pom.xml

@@ -30,7 +30,7 @@
 
     <groupId>io.github.q3769</groupId>
     <artifactId>semver-maven-plugin</artifactId>
-    <version>20240116.0.202507152211</version>
+    <version>20240116.0.202507281844</version>
     <packaging>maven-plugin</packaging>
 
     <name>semver-maven-plugin</name>
@@ -125,18 +125,6 @@
             <artifactId>commons-lang3</artifactId>
             <version>3.18.0</version>
         </dependency>
-        <dependency>
-            <groupId>io.github.elf4j</groupId>
-            <artifactId>elf4j-provider</artifactId>
-            <version>15.1.0</version>
-            <scope>test</scope>
-        </dependency>
-        <dependency>
-            <groupId>org.slf4j</groupId>
-            <artifactId>slf4j-api</artifactId>
-            <version>2.0.17</version>
-            <scope>test</scope>
-        </dependency>
         <dependency>
             <groupId>org.junit.jupiter</groupId>
             <artifactId>junit-jupiter</artifactId>
@@ -257,7 +245,7 @@
             <plugin>
                 <groupId>io.github.q3769</groupId>
                 <artifactId>semver-maven-plugin</artifactId>
-                <version>20240116.0.202507152211</version>
+                <version>20240116.0.202507281844</version>
             </plugin>
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>

src/test/java/q3769/maven/plugins/semver/mojos/MergeTest.java

@@ -29,14 +29,14 @@
 import static q3769.maven.plugins.semver.NormalVersion.MINOR;
 
 import com.github.zafarkhaja.semver.Version;
-import elf4j.Logger;
+import java.util.logging.Logger;
 import org.apache.maven.plugin.MojoFailureException;
 import org.junit.jupiter.api.Nested;
 import org.junit.jupiter.api.Test;
 import q3769.maven.plugins.semver.NormalVersion;
 
 class MergeTest {
-  static final Logger info = Logger.instance().atInfo();
+  static final Logger log = Logger.getLogger(MergeTest.class.getName());
 
   Merge mergeMojo = new Merge();
 
@@ -46,12 +46,12 @@ class update {
     void whenOriginalVersionIsNewer() throws MojoFailureException {
       Version original = Version.parse("1.4.0-SNAPSHOT");
       Version toMerge = Version.parse("1.3.4-hotfix");
-      info.log("Merging " + toMerge + " to " + original);
+      log.info(String.format("Merging %s to %s", toMerge, original));
       assertTrue(original.compareTo(toMerge) > 0);
       mergeMojo.otherSemVer = toMerge.toString();
 
       Version updated = mergeMojo.update(original);
-      info.log("Merge result: " + updated);
+      log.info(String.format("Merge result: %s", updated));
 
       assertEquals(original, updated);
     }
@@ -60,13 +60,13 @@ void whenOriginalVersionIsNewer() throws MojoFailureException {
     void whenOriginalVersionIsOlder() throws MojoFailureException {
       Version original = Version.parse("1.2.0-pre-release.1+build.metadata");
       Version toMerge = Version.parse("1.3.4-hotfix");
-      info.log("Merging " + toMerge + " to " + original);
+      log.info(String.format("Merging %s to %s", toMerge, original));
       mergeMojo.otherSemVer = toMerge.toString();
       assertTrue(original.compareTo(toMerge) < 0);
       assertEquals(MINOR, NormalVersion.getLastIncrementedNormalVersion(original));
 
       Version updated = mergeMojo.update(original);
-      info.log("Merge result: " + updated);
+      log.info(String.format("Merge result: %s", updated));
 
       assertEquals(Version.parse("1.4.0-pre-release.1+build.metadata"), updated);
     }