Make build work with Gradle

build.gradle

@@ -0,0 +1,60 @@
+buildscript {
+    dependencies {
+        classpath 'ro.isdc.wro4j.gradle:wro4j-gradle-plugin:1.8.0.Beta4'
+    }
+}
+
+plugins {
+  id 'org.springframework.boot' version '2.4.5'
+  id 'io.spring.dependency-management' version '1.0.11.RELEASE'
+  id 'java'
+}
+
+apply plugin: 'java'
+apply plugin: 'wro4j'
+
+group = 'org.springframework.samples'
+version = '2.4.5'
+sourceCompatibility = '11'
+
+repositories {
+  mavenCentral()
+}
+
+ext.webjarsJqueryVersion = "2.2.4"
+ext.webjarsJqueryUiVersion = "1.11.4"
+ext.webjarsBootstrapVersion = "3.3.6"
+
+dependencies {
+  implementation 'org.springframework.boot:spring-boot-starter-cache'
+  implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
+  implementation 'org.springframework.boot:spring-boot-starter-thymeleaf'
+  implementation 'org.springframework.boot:spring-boot-starter-web'
+  implementation 'org.springframework.boot:spring-boot-starter-validation'
+  implementation 'javax.cache:cache-api'
+  webjarsRuntime 'org.webjars:webjars-locator-core'
+  webjarsRuntime "org.webjars:jquery:${webjarsJqueryVersion}"
+  webjarsRuntime "org.webjars:jquery-ui:${webjarsJqueryUiVersion}"
+  webjarsRuntime "org.webjars:bootstrap:${webjarsBootstrapVersion}"
+  webjarsRuntime "org.webjars:bootstrap:${webjarsBootstrapVersion}"
+  runtimeOnly 'org.ehcache:ehcache'
+  runtimeOnly 'com.h2database:h2'
+  runtimeOnly 'mysql:mysql-connector-java'
+  developmentOnly 'org.springframework.boot:spring-boot-devtools'
+  testImplementation 'org.springframework.boot:spring-boot-starter-test'
+}
+
+test {
+  useJUnitPlatform()
+}
+
+webResources {
+    srcMainDir = layout.projectDirectory.dir('src/main').asFile
+    dstStaticFolder = 'static/resources/css'
+    bundle ('petclinic') {
+        css 'webjars/bootstrap/3.3.6/less/bootstrap.less'
+        css 'less/petclinic.less'
+        preProcessor 'lessCssImport'
+        postProcessor 'less4j'
+    }
+}