Use Java version and vendor from pipeline properties.

Ensure that we use always the specified Java version.

See #193

src/test/java/org/springframework/data/release/io/JavaRuntimesUnitTests.java

@@ -37,4 +37,5 @@ class JavaRuntimesUnitTests {
 		assertThat(jdk).isNotNull();
 		assertThat(System.getProperty("java.home")).contains(jdk.getHome().getPath());
 	}
+
 }

src/test/java/org/springframework/data/release/model/JavaVersionUnitTests.java

@@ -0,0 +1,44 @@
+/*
+ * Copyright 2022 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
+ *
+ *      https://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.data.release.model;
+
+import static org.assertj.core.api.Assertions.*;
+
+import org.junit.jupiter.api.Test;
+
+/**
+ * Unit tests for {@link JavaVersion}.
+ *
+ * @author Mark Paluch
+ */
+class JavaVersionUnitTests {
+
+	@Test
+	void shouldParseDockerTag() {
+
+		assertThat(JavaVersion.fromDockerTag("8u312-b07-jdk").getName()).isEqualTo("Java 1.8.0_312");
+		assertThat(JavaVersion.fromDockerTag("8u322-b06-jre-focal").getName()).isEqualTo("Java 1.8.0_322");
+		assertThat(JavaVersion.fromDockerTag("11.0.13_8-jdk").getName()).isEqualTo("Java 11.0.13");
+		assertThat(JavaVersion.fromDockerTag("17.0.1_12").getName()).isEqualTo("Java 17.0.1");
+	}
+
+	@Test
+	void shouldConsiderImplementor() {
+
+		assertThat(JavaVersion.fromDockerTag("8u312-b07-jdk").withImplementor("Temurin").getName())
+				.isEqualTo("Java 1.8.0_312 (Temurin)");
+	}
+}