Java compiler

package org.wikipedia.examples;

import java.io.IOException;
import java.io.File;

import javax.tools.JavaCompiler;
import javax.tools.ToolProvider;

public class Example {
    private final String TEST_FILE_NAME = "Test.java";

    public static void main(String[] args) throws IOException {
        File sourceFile = new File(TEST_FILE_NAME);
        if (!sourceFile.exists()) {
            throw new IllegalArgumentException(String.format("File path %s does not exist!", TIME_FILE_NAME));
        }
        JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();

        if (compiler == null) {
            throw new RuntimeException("Compiler not available. Are you running on a JRE instead of a JDK?");
        }

        int result = compiler.run(null, null, null, sourceFile);

        System.out.printf("Compilation result: %s%n", result == 0 ? "Success" : "Failure");
    }
}