BAEL-3765: Code Upload (#8804)

spring-5/src/main/java/com/baeldung/version/VersionObtainer.java

@@ -0,0 +1,20 @@
+package com.baeldung.version;
+
+import org.springframework.boot.system.JavaVersion;
+import org.springframework.boot.system.SystemProperties;
+import org.springframework.core.SpringVersion;
+
+public class VersionObtainer {
+
+    public String getSpringVersion() {
+        return SpringVersion.getVersion();
+    }
+    
+    public String getJavaVersion() {
+        return JavaVersion.getJavaVersion().toString();
+    }
+    
+    public String getJdkVersion() {
+        return SystemProperties.get("java.version");
+    }
+}

spring-5/src/test/java/com/baeldung/version/VersionObtainerUnitTest.java

@@ -0,0 +1,30 @@
+package com.baeldung.version;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+import org.junit.Test;
+import org.springframework.boot.test.context.SpringBootTest;
+
+@SpringBootTest(classes = VersionObtainer.class)
+public class VersionObtainerUnitTest {
+
+    public VersionObtainer version = new VersionObtainer();
+    
+    @Test
+    public void testGetSpringVersion() {
+        String res = version.getSpringVersion();
+        assertThat(res).isNotEmpty();
+    }
+
+    @Test
+    public void testGetJdkVersion() {
+        String res = version.getJdkVersion();
+        assertThat(res).isNotEmpty();
+    }
+
+    @Test
+    public void testGetJavaVersion() {
+        String res = version.getJavaVersion();
+        assertThat(res).isNotEmpty();
+    }
+}