import java.io.File;

import java.io.FileInputStream;

import java.security.Security;

import java.util.Properties;

public class TestSecurityProperties {

    // JDK 11

    private static final String JDK_PROPS_FILE_JDK_11 = System.getProperty("java.home") + "/conf/security/java.security";

    // JDK 8

    private static final String JDK_PROPS_FILE_JDK_8 = System.getProperty("java.home") + "/lib/security/java.security";

    public static void main(String[] args) {

        Properties jdkProps = new Properties();

        loadProperties(jdkProps);

        for (Object key: jdkProps.keySet()) {

            String sKey = (String)key;

            String securityVal = Security.getProperty(sKey);

            String jdkSecVal = jdkProps.getProperty(sKey);

            if (!securityVal.equals(jdkSecVal)) {

                String msg = "Expected value '" + jdkSecVal + "' for key '" + 

                             sKey + "'" + " but got value '" + securityVal + "'";

                throw new RuntimeException("Test failed! " + msg);

            } else {

                System.out.println("DEBUG: " + sKey + " = " + jdkSecVal + " as expected.");

            }

        }

        System.out.println("TestSecurityProperties PASSED!");

    }

    private static void loadProperties(Properties props) {

        String javaVersion = System.getProperty("java.version");

        System.out.println("Debug: Java version is " + javaVersion);

        String propsFile = JDK_PROPS_FILE_JDK_11;

        if (javaVersion.startsWith("1.8.0")) {

            propsFile = JDK_PROPS_FILE_JDK_8;

        }

        try (FileInputStream fin = new FileInputStream(new File(propsFile))) {

            props.load(fin);

        } catch (Exception e) {

            throw new RuntimeException("Test failed!", e);

        }

    }

}