Merge remote-tracking branch 'upstream/master' into BAEL-20573
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commit
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### Relevant Articles:
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- [Intro to the Java SecurityManager](https://www.baeldung.com/java-security-manager)
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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<artifactId>core-java-security-manager</artifactId>
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<version>0.1.0-SNAPSHOT</version>
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<name>core-java-security-manager</name>
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<packaging>jar</packaging>
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<parent>
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<groupId>com.baeldung.core-java-modules</groupId>
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<artifactId>core-java-modules</artifactId>
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<version>1.0.0-SNAPSHOT</version>
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</parent>
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</project>
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package com.baeldung.security.manager;
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import org.junit.Test;
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import java.net.URL;
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import java.security.AccessControlException;
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import java.util.concurrent.Callable;
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public class SecurityManagerUnitTest {
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@Test(expected = AccessControlException.class)
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public void whenSecurityManagerIsActive_thenNetworkIsNotAccessibleByDefault() throws Exception {
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doTest(() -> {
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new URL("http://www.google.com").openConnection().connect();
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return null;
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});
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}
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@Test(expected = AccessControlException.class)
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public void whenUnauthorizedClassTriesToAccessProtectedOperation_thenAnExceptionIsThrown() throws Exception {
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doTest(() -> {
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new Service().operation();
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return null;
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});
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}
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private void doTest(Callable<Void> action) throws Exception {
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System.setSecurityManager(new SecurityManager());
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try {
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action.call();
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} finally {
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System.setSecurityManager(null);
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}
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}
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}
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@ -15,4 +15,5 @@ This module contains articles about core Java Security
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- [The Java SecureRandom Class](https://www.baeldung.com/java-secure-random)
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- [The Java SecureRandom Class](https://www.baeldung.com/java-secure-random)
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- [An Introduction to Java SASL](https://www.baeldung.com/java-sasl)
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- [An Introduction to Java SASL](https://www.baeldung.com/java-sasl)
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- [A Guide to Java GSS API](https://www.baeldung.com/java-gss)
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- [A Guide to Java GSS API](https://www.baeldung.com/java-gss)
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- [Intro to the Java SecurityManager](https://www.baeldung.com/java-security-manager)
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package com.baeldung.security.manager;
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package com.baeldung.securitymanager;
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import java.security.BasicPermission;
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import java.security.BasicPermission;
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package com.baeldung.security.manager;
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package com.baeldung.securitymanager;
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public class Service {
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public class Service {
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package org.baeldung.java.md5;
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package com.baeldung.java.md5;
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import static org.assertj.core.api.Assertions.assertThat;
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import static org.assertj.core.api.Assertions.assertThat;
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package com.baeldung.securitymanager;
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import org.junit.After;
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import org.junit.Before;
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import org.junit.Test;
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import java.io.IOException;
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import java.net.URL;
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import java.security.AccessControlException;
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public class SecurityManagerUnitTest {
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private static final String TESTING_SECURITY_POLICY = "file:src/test/resources/testing.policy";
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@Before
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public void setUp() {
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System.setProperty("java.security.policy", TESTING_SECURITY_POLICY);
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System.setSecurityManager(new SecurityManager());
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}
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@After
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public void tearDown() {
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System.setSecurityManager(null);
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}
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@Test(expected = AccessControlException.class)
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public void whenSecurityManagerIsActive_thenNetworkIsNotAccessibleByDefault() throws IOException {
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new URL("http://www.google.com").openConnection().connect();
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}
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@Test(expected = AccessControlException.class)
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public void whenUnauthorizedClassTriesToAccessProtectedOperation_thenAnExceptionIsThrown() {
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new Service().operation();
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}
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}
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grant {
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// This is for testing purposes only.
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// It allows us to properly reset the security manager after the unit test completes.
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permission java.lang.RuntimePermission "setSecurityManager";
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};
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<module>core-java-optional</module>
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<module>core-java-optional</module>
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<module>core-java-lang-operators</module>
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<module>core-java-lang-operators</module>
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<module>core-java-networking-2</module>
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<module>core-java-networking-2</module>
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<module>core-java-security-manager</module>
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<module>core-java-date-operations-2</module>
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<module>core-java-date-operations-2</module>
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</modules>
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</modules>
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