From e627839d970557ea1a3509622af99c78baa6b0af Mon Sep 17 00:00:00 2001
From: Tyrell Flurry <tyrellflurry@gmail.com>
Date: Wed, 1 Apr 2020 18:08:39 -0400
Subject: [PATCH 1/6] BAEL-3929: added unused maven dependencies example.

---
 maven-all/maven-unused-dependencies/pom.xml   | 30 +++++++++++++++++++
 .../src/main/java/com/baeldung/Main.java      | 20 +++++++++++++
 2 files changed, 50 insertions(+)
 create mode 100644 maven-all/maven-unused-dependencies/pom.xml
 create mode 100644 maven-all/maven-unused-dependencies/src/main/java/com/baeldung/Main.java

diff --git a/maven-all/maven-unused-dependencies/pom.xml b/maven-all/maven-unused-dependencies/pom.xml
new file mode 100644
index 0000000000..312f38ed93
--- /dev/null
+++ b/maven-all/maven-unused-dependencies/pom.xml
@@ -0,0 +1,30 @@
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <groupId>com.baeldung</groupId>
+    <artifactId>maven-unused-dependencies</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+
+    <dependencies>
+        <dependency>
+            <groupId>commons-collections</groupId>
+            <artifactId>commons-collections</artifactId>
+            <version>3.2.2</version>
+        </dependency>
+        <dependency>
+            <groupId>org.slf4j</groupId>
+            <artifactId>slf4j-api</artifactId>
+            <version>1.7.25</version>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <artifactId>maven-dependency-plugin</artifactId>
+                <version>3.1.1</version>
+            </plugin>
+        </plugins>
+    </build>
+</project>
\ No newline at end of file
diff --git a/maven-all/maven-unused-dependencies/src/main/java/com/baeldung/Main.java b/maven-all/maven-unused-dependencies/src/main/java/com/baeldung/Main.java
new file mode 100644
index 0000000000..8143c7d19f
--- /dev/null
+++ b/maven-all/maven-unused-dependencies/src/main/java/com/baeldung/Main.java
@@ -0,0 +1,20 @@
+package com.baeldung;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import org.slf4j.LoggerFactory;
+
+public class Main {
+
+    public static void main(String[] args) {
+        Map<String, String> teamMap = new HashMap<>();
+        teamMap.put("Dallas", "Cowboys");
+        teamMap.put("Green Bay", "Packers");
+        teamMap.put("Washington", "Redskins");
+
+        LoggerFactory.getLogger(Main.class)
+            .info("Team Map: {}", teamMap);
+
+    }
+}

From b2702878ee4fba5abebf18f81e2d2db763bc2a34 Mon Sep 17 00:00:00 2001
From: Tyrell Flurry <tyrellflurry@gmail.com>
Date: Thu, 9 Apr 2020 16:52:54 -0400
Subject: [PATCH 2/6] BAEL-3929: modified java.

---
 .../src/main/java/com/baeldung/Main.java             | 12 +++++-------
 1 file changed, 5 insertions(+), 7 deletions(-)

diff --git a/maven-all/maven-unused-dependencies/src/main/java/com/baeldung/Main.java b/maven-all/maven-unused-dependencies/src/main/java/com/baeldung/Main.java
index 8143c7d19f..abf6c7a03d 100644
--- a/maven-all/maven-unused-dependencies/src/main/java/com/baeldung/Main.java
+++ b/maven-all/maven-unused-dependencies/src/main/java/com/baeldung/Main.java
@@ -6,15 +6,13 @@ import java.util.Map;
 import org.slf4j.LoggerFactory;
 
 public class Main {
-
     public static void main(String[] args) {
-        Map<String, String> teamMap = new HashMap<>();
-        teamMap.put("Dallas", "Cowboys");
-        teamMap.put("Green Bay", "Packers");
-        teamMap.put("Washington", "Redskins");
+        Map<String, String> map = new HashMap<>();
+        map.put("Dallas", "Texas");
+        map.put("Green Bay", "Wisconsin");
+        map.put("Seattle", "Washington");
 
         LoggerFactory.getLogger(Main.class)
-            .info("Team Map: {}", teamMap);
-
+            .info("Map: {}", map);
     }
 }

From 47042839b6821502f118ac864f124719fd710200 Mon Sep 17 00:00:00 2001
From: Tyrell Flurry <tyrellflurry@gmail.com>
Date: Sat, 11 Apr 2020 08:31:06 -0400
Subject: [PATCH 3/6] BAEL-3929: addressed code review comments.

---
 maven-all/maven-unused-dependencies/pom.xml | 23 ++++++++++++++++++---
 1 file changed, 20 insertions(+), 3 deletions(-)

diff --git a/maven-all/maven-unused-dependencies/pom.xml b/maven-all/maven-unused-dependencies/pom.xml
index 312f38ed93..19a06fc605 100644
--- a/maven-all/maven-unused-dependencies/pom.xml
+++ b/maven-all/maven-unused-dependencies/pom.xml
@@ -10,21 +10,38 @@
         <dependency>
             <groupId>commons-collections</groupId>
             <artifactId>commons-collections</artifactId>
-            <version>3.2.2</version>
+            <version>${commons-collections.version}</version>
         </dependency>
         <dependency>
             <groupId>org.slf4j</groupId>
             <artifactId>slf4j-api</artifactId>
-            <version>1.7.25</version>
+            <version>${slf4j-api.version}</version>
         </dependency>
     </dependencies>
 
     <build>
         <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>${maven-compiler-plugin.version}</version>
+                <configuration>
+                    <source>1.8</source>
+                    <target>1.8</target>
+                </configuration>
+            </plugin>
             <plugin>
                 <artifactId>maven-dependency-plugin</artifactId>
-                <version>3.1.1</version>
+                <version>${maven-dependency-plugin.version}</version>
             </plugin>
         </plugins>
     </build>
+
+    <properties>
+        <commons-collections.version>3.2.2</commons-collections.version>
+        <slf4j-api.version>1.7.25</slf4j-api.version>
+        <maven-dependency-plugin.version>3.1.1</maven-dependency-plugin.version>
+        <maven-compiler-plugin.version>3.1</maven-compiler-plugin.version>
+    </properties>
+
 </project>
\ No newline at end of file

From 8fbc900a9f27c5c2a9be26473cd4ecb7875ad150 Mon Sep 17 00:00:00 2001
From: Tyrell Flurry <tyrellflurry@gmail.com>
Date: Tue, 14 Apr 2020 17:59:28 -0400
Subject: [PATCH 4/6] BAEL-3929: added another example per code review.

---
 .../src/main/java/com/baeldung/Main.java          |  2 ++
 .../main/java/com/baeldung/ReflectionMain.java    | 15 +++++++++++++++
 2 files changed, 17 insertions(+)
 create mode 100644 maven-all/maven-unused-dependencies/src/main/java/com/baeldung/ReflectionMain.java

diff --git a/maven-all/maven-unused-dependencies/src/main/java/com/baeldung/Main.java b/maven-all/maven-unused-dependencies/src/main/java/com/baeldung/Main.java
index abf6c7a03d..2626bb30a3 100644
--- a/maven-all/maven-unused-dependencies/src/main/java/com/baeldung/Main.java
+++ b/maven-all/maven-unused-dependencies/src/main/java/com/baeldung/Main.java
@@ -6,6 +6,7 @@ import java.util.Map;
 import org.slf4j.LoggerFactory;
 
 public class Main {
+
     public static void main(String[] args) {
         Map<String, String> map = new HashMap<>();
         map.put("Dallas", "Texas");
@@ -15,4 +16,5 @@ public class Main {
         LoggerFactory.getLogger(Main.class)
             .info("Map: {}", map);
     }
+
 }
diff --git a/maven-all/maven-unused-dependencies/src/main/java/com/baeldung/ReflectionMain.java b/maven-all/maven-unused-dependencies/src/main/java/com/baeldung/ReflectionMain.java
new file mode 100644
index 0000000000..48e42f7c66
--- /dev/null
+++ b/maven-all/maven-unused-dependencies/src/main/java/com/baeldung/ReflectionMain.java
@@ -0,0 +1,15 @@
+package com.baeldung;
+
+public class ReflectionMain {
+
+    public static void main(String[] args) {
+        ClassLoader classLoader = Main.class.getClassLoader();
+        try {
+            System.out.println(classLoader.loadClass("org.apache.commons.collections.CollectionUtils")
+                .getSimpleName());
+        } catch (ClassNotFoundException e) {
+            e.printStackTrace();
+        }
+    }
+
+}
\ No newline at end of file

From 3b7dfaa3196d1e167415759bde29cc3c63edf4f4 Mon Sep 17 00:00:00 2001
From: Tyrell Flurry <tyrellflurry@gmail.com>
Date: Mon, 27 Apr 2020 10:47:52 -0400
Subject: [PATCH 5/6] BAEL-3929: made changes per code/article review.

---
 maven-all/maven-unused-dependencies/pom.xml   | 14 ++++++-------
 .../src/main/java/com/baeldung/Main.java      | 20 -------------------
 .../java/com/baeldung/ReflectionMain.java     | 15 --------------
 .../UnusedDependenciesExample.java            | 17 ++++++++++++++++
 4 files changed, 24 insertions(+), 42 deletions(-)
 delete mode 100644 maven-all/maven-unused-dependencies/src/main/java/com/baeldung/Main.java
 delete mode 100644 maven-all/maven-unused-dependencies/src/main/java/com/baeldung/ReflectionMain.java
 create mode 100644 maven-all/maven-unused-dependencies/src/main/java/com/baeldung/mavendependencyplugin/UnusedDependenciesExample.java

diff --git a/maven-all/maven-unused-dependencies/pom.xml b/maven-all/maven-unused-dependencies/pom.xml
index 19a06fc605..c8f6c1f04b 100644
--- a/maven-all/maven-unused-dependencies/pom.xml
+++ b/maven-all/maven-unused-dependencies/pom.xml
@@ -6,6 +6,13 @@
     <artifactId>maven-unused-dependencies</artifactId>
     <version>0.0.1-SNAPSHOT</version>
 
+    <properties>
+        <commons-collections.version>3.2.2</commons-collections.version>
+        <slf4j-api.version>1.7.25</slf4j-api.version>
+        <maven-dependency-plugin.version>3.1.1</maven-dependency-plugin.version>
+        <maven-compiler-plugin.version>3.1</maven-compiler-plugin.version>
+    </properties>
+
     <dependencies>
         <dependency>
             <groupId>commons-collections</groupId>
@@ -37,11 +44,4 @@
         </plugins>
     </build>
 
-    <properties>
-        <commons-collections.version>3.2.2</commons-collections.version>
-        <slf4j-api.version>1.7.25</slf4j-api.version>
-        <maven-dependency-plugin.version>3.1.1</maven-dependency-plugin.version>
-        <maven-compiler-plugin.version>3.1</maven-compiler-plugin.version>
-    </properties>
-
 </project>
\ No newline at end of file
diff --git a/maven-all/maven-unused-dependencies/src/main/java/com/baeldung/Main.java b/maven-all/maven-unused-dependencies/src/main/java/com/baeldung/Main.java
deleted file mode 100644
index 2626bb30a3..0000000000
--- a/maven-all/maven-unused-dependencies/src/main/java/com/baeldung/Main.java
+++ /dev/null
@@ -1,20 +0,0 @@
-package com.baeldung;
-
-import java.util.HashMap;
-import java.util.Map;
-
-import org.slf4j.LoggerFactory;
-
-public class Main {
-
-    public static void main(String[] args) {
-        Map<String, String> map = new HashMap<>();
-        map.put("Dallas", "Texas");
-        map.put("Green Bay", "Wisconsin");
-        map.put("Seattle", "Washington");
-
-        LoggerFactory.getLogger(Main.class)
-            .info("Map: {}", map);
-    }
-
-}
diff --git a/maven-all/maven-unused-dependencies/src/main/java/com/baeldung/ReflectionMain.java b/maven-all/maven-unused-dependencies/src/main/java/com/baeldung/ReflectionMain.java
deleted file mode 100644
index 48e42f7c66..0000000000
--- a/maven-all/maven-unused-dependencies/src/main/java/com/baeldung/ReflectionMain.java
+++ /dev/null
@@ -1,15 +0,0 @@
-package com.baeldung;
-
-public class ReflectionMain {
-
-    public static void main(String[] args) {
-        ClassLoader classLoader = Main.class.getClassLoader();
-        try {
-            System.out.println(classLoader.loadClass("org.apache.commons.collections.CollectionUtils")
-                .getSimpleName());
-        } catch (ClassNotFoundException e) {
-            e.printStackTrace();
-        }
-    }
-
-}
\ No newline at end of file
diff --git a/maven-all/maven-unused-dependencies/src/main/java/com/baeldung/mavendependencyplugin/UnusedDependenciesExample.java b/maven-all/maven-unused-dependencies/src/main/java/com/baeldung/mavendependencyplugin/UnusedDependenciesExample.java
new file mode 100644
index 0000000000..c9390880ed
--- /dev/null
+++ b/maven-all/maven-unused-dependencies/src/main/java/com/baeldung/mavendependencyplugin/UnusedDependenciesExample.java
@@ -0,0 +1,17 @@
+package com.baeldung.mavendependencyplugin;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class UnusedDependenciesExample {
+
+    /**
+     * When the Maven dependency analyzer analyzes the code, it will see that the slf4j dependency is being used in this method. 
+     * 
+     * @return the slf4j {@link Logger}.
+     */
+    public Logger getLogger() {
+        return LoggerFactory.getLogger(UnusedDependenciesExample.class);
+    }
+
+}

From 46d887c7416403f4053be52aaf88aabc95e848df Mon Sep 17 00:00:00 2001
From: Tyrell Flurry <tyrellflurry@gmail.com>
Date: Tue, 5 May 2020 08:01:34 -0400
Subject: [PATCH 6/6] BAEL-3929: changed plugin version.

---
 maven-all/maven-unused-dependencies/pom.xml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/maven-all/maven-unused-dependencies/pom.xml b/maven-all/maven-unused-dependencies/pom.xml
index c8f6c1f04b..825858e481 100644
--- a/maven-all/maven-unused-dependencies/pom.xml
+++ b/maven-all/maven-unused-dependencies/pom.xml
@@ -9,7 +9,7 @@
     <properties>
         <commons-collections.version>3.2.2</commons-collections.version>
         <slf4j-api.version>1.7.25</slf4j-api.version>
-        <maven-dependency-plugin.version>3.1.1</maven-dependency-plugin.version>
+        <maven-dependency-plugin.version>3.1.2</maven-dependency-plugin.version>
         <maven-compiler-plugin.version>3.1</maven-compiler-plugin.version>
     </properties>