Migrated unit test TldTests.groovy to TldTests.java

Moved unit test TldTests#testTldVersionIsCorrect from groovy to java.

gh-4939

taglibs/src/test/groovy/org/springframework/security/taglibs/TldTests.groovy

@@ -1,17 +0,0 @@
-package org.springframework.security.taglibs
-
-import groovy.util.slurpersupport.GPathResult
-import spock.lang.Specification
-
-
-class TldTests extends Specification {
-
-  def "SEC-2324: tld version is correct"() {
-	  when:
-		  File securityTld = new File('src/main/resources/META-INF/security.tld')
-		  GPathResult tldRoot = new XmlSlurper().parse(securityTld)
-	  then:
-		  String version = System.getProperty('springSecurityVersion');
-		  version.startsWith(tldRoot.'tlib-version'.text())
-  }
-}

taglibs/src/test/java/org/springframework/security/taglibs/TldTests.java

@@ -0,0 +1,49 @@
+/*
+ * Copyright 2002-2018 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.security.taglibs;
+
+import org.junit.Test;
+import org.w3c.dom.Document;
+
+import javax.xml.parsers.DocumentBuilder;
+import javax.xml.parsers.DocumentBuilderFactory;
+import java.io.File;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+public class TldTests {
+
+	//SEC-2324
+	@Test
+	public void testTldVersionIsCorrect() throws Exception{
+		String SPRING_SECURITY_VERSION = "springSecurityVersion";
+
+		String version = System.getProperty(SPRING_SECURITY_VERSION);
+
+		File securityTld = new File("src/main/resources/META-INF/security.tld");
+
+		DocumentBuilderFactory documentBuilderFactory = DocumentBuilderFactory.newInstance();
+		DocumentBuilder documentBuilder = documentBuilderFactory.newDocumentBuilder();
+		Document document = documentBuilder.parse(securityTld);
+
+		String tlibVersion = document.getElementsByTagName("tlib-version").item(0).getTextContent();
+
+		assertThat(version).startsWith(tlibVersion);
+	}
+
+
+}