Create a Java FunctionalInterface and extension of the ProcessRunner interface defining a contract, logic and strategy for running (executing) a Java/JVM Process.

Resolves gh-17.

spring-data-geode-test/src/main/java/org/springframework/data/gemfire/tests/process/JavaProcessRunner.java

@@ -0,0 +1,50 @@
+/*
+ *  Copyright 2019 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.gemfire.tests.process;
+
+/**
+ * The {@link JavaProcessRunner} interface is a {@link FunctionalInterface} and extension of the {@link ProcessRunner}
+ * interface to encapsulate the runtime parameters for running (executing) a Java/JVM {@link Process}.
+ *
+ * @author John Blum
+ * @see org.springframework.data.gemfire.tests.process.ProcessRunner
+ * @since 1.0.0
+ */
+@FunctionalInterface
+@SuppressWarnings("unused")
+public interface JavaProcessRunner extends ProcessRunner {
+
+	/**
+	 * Gets the {@link String classpath} used to run the Java/JVM {@link Process}.
+	 *
+	 * Defaults to the parent JVM {@link Process} classpath as defined by {@code System.getProperty("java.class.path}).
+	 *
+	 * @return the {@link String classpath} used to run the Java/JVM {@link Process}.
+	 */
+	default String getClassPath() {
+		return System.getProperty("java.class.path");
+	}
+
+	/**
+	 * Gets the Java {@link Class} with the main method to run.
+	 *
+	 * @return the Java {@link Class} with the main method to run.
+	 * @see java.lang.Class
+	 */
+	default Class<?> getMainClass() {
+		return null;
+	}
+}