java.lang.System.setSecurityManager()方法的使用及代码示例

x33g5p2x  于2022-01-16 转载在 其他  
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本文整理了Java中java.lang.System.setSecurityManager()方法的一些代码示例，展示了System.setSecurityManager()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。System.setSecurityManager()方法的具体详情如下：
包路径：java.lang.System
类名称：System
方法名：setSecurityManager

System.setSecurityManager介绍

[英]Throws SecurityException.

Security managers do not provide a secure environment for executing untrusted code and are unsupported on Android. Untrusted code cannot be safely isolated within a single VM on Android, so this method always throws a SecurityException.
[中]抛出SecurityException。
安全管理器不提供执行不受信任代码的安全环境，在Android上不受支持。不受信任的代码无法在Android上的单个VM中安全隔离，因此此方法始终引发SecurityException。

代码示例

代码示例来源：origin: neo4j/neo4j

  1. @Override
  2. protected void after()
  3. {
  4.   System.setSecurityManager( originalSecurityManager );
  5. }

代码示例来源：origin: google/guava

  1. public void testExistsThrowsSecurityException() throws IOException, URISyntaxException {
  2.  SecurityManager oldSecurityManager = System.getSecurityManager();
  3.  try {
  4.   doTestExistsThrowsSecurityException();
  5.  } finally {
  6.   System.setSecurityManager(oldSecurityManager);
  7.  }
  8. }

代码示例来源：origin: spring-projects/spring-framework

  1. @After
  2. public void tearDown() {
  3.   env.remove(AbstractEnvironment.ACTIVE_PROFILES_PROPERTY_NAME);
  4.   System.setSecurityManager(originalSecurityManager);
  5. }

代码示例来源：origin: org.apache.logging.log4j/log4j-api

  1. private void before() {
  2.     securityManagerBefore = System.getSecurityManager();
  3.     System.setSecurityManager(securityManager);
  4.   }
  5. };

代码示例来源：origin: google/guava

  1. /**
  2.  * Tests that the use of a {@link FinalizableReferenceQueue} does not subsequently prevent the
  3.  * loader of that class from being garbage-collected.
  4.  */
  5. public void testUnloadableWithoutSecurityManager() throws Exception {
  6.  if (isJdk9OrHigher()) {
  7.   return;
  8.  }
  9.  SecurityManager oldSecurityManager = System.getSecurityManager();
  10.  try {
  11.   System.setSecurityManager(null);
  12.   doTestUnloadable();
  13.  } finally {
  14.   System.setSecurityManager(oldSecurityManager);
  15.  }
  16. }

代码示例来源：origin: spring-projects/spring-framework

  1. public CallbacksSecurityTests() {
  2.   // setup security
  3.   if (System.getSecurityManager() == null) {
  4.     Policy policy = Policy.getPolicy();
  5.     URL policyURL = getClass()
  6.         .getResource(
  7.             "/org/springframework/beans/factory/support/security/policy.all");
  8.     System.setProperty("java.security.policy", policyURL.toString());
  9.     System.setProperty("policy.allowSystemProperty", "true");
  10.     policy.refresh();
  11.     System.setSecurityManager(new SecurityManager());
  12.   }
  13. }

代码示例来源：origin: neo4j/neo4j

  1. @Override
  2. protected void before()
  3. {
  4.   originalSecurityManager = System.getSecurityManager();
  5.   TestSecurityManager testSecurityManager = new TestSecurityManager( originalSecurityManager );
  6.   System.setSecurityManager( testSecurityManager );
  7. }

代码示例来源：origin: pentaho/pentaho-kettle

  1. @After
  2. public void tearDown() {
  3.  System.setSecurityManager( oldSecurityManager );
  4.  sysOutContent = null;
  5.  sysErrContent = null;
  6.  mockRepositoriesMeta = null;
  7.  mockRepositoryMeta = null;
  8.  mockRepository = null;
  9.  mockRepositoryDirectory = null;
  10. }

代码示例来源：origin: google/guava

  1. System.setSecurityManager(
  2.   new SecurityManager() {
  3.    @Override
  4.  assertEquals(oldName, Thread.currentThread().getName());
  5. } finally {
  6.  System.setSecurityManager(null);

代码示例来源：origin: pentaho/pentaho-kettle

  1. @Before
  2. public void setUp() throws KettleException {
  3.  KettleEnvironment.init();
  4.  oldSecurityManager = System.getSecurityManager();
  5.  sysOutContent = new ByteArrayOutputStream();
  6.  sysErrContent = new ByteArrayOutputStream();
  7.  System.setSecurityManager( new MySecurityManager( oldSecurityManager ) );
  8.  mockRepositoriesMeta = mock( RepositoriesMeta.class );
  9.  mockRepositoryMeta = mock( RepositoryMeta.class );
  10.  mockRepository = mock( Repository.class );
  11.  mockRepositoryDirectory = mock( RepositoryDirectoryInterface.class );
  12. }

代码示例来源：origin: languagetool-org/languagetool

  1. @Test
  2. public void testPermissionManager() throws Exception {
  3.  try {
  4.   PatternRuleLoader loader = new PatternRuleLoader();
  5.   // do not crash if Authenticator.setDefault() is forbidden,
  6.   // see https://github.com/languagetool-org/languagetool/issues/255
  7.   loader.getRules(new ByteArrayInputStream("<rules lang='xx'></rules>".getBytes("utf-8")), "fakeName");
  8.  } finally {
  9.   System.setSecurityManager(null);
  10.  }
  11. }

代码示例来源：origin: spring-projects/spring-framework

  1. @Test
  2. public void systemPropertiesSecurityManager() {
  3.   AnnotationConfigApplicationContext ac = new AnnotationConfigApplicationContext();
  4.   GenericBeanDefinition bd = new GenericBeanDefinition();
  5.   bd.setBeanClass(TestBean.class);
  6.   bd.getPropertyValues().add("country", "#{systemProperties.country}");
  7.   ac.registerBeanDefinition("tb", bd);
  8.   SecurityManager oldSecurityManager = System.getSecurityManager();
  9.   try {
  10.     System.setProperty("country", "NL");
  11.     SecurityManager securityManager = new SecurityManager() {
  12.       @Override
  13.       public void checkPropertiesAccess() {
  14.         throw new AccessControlException("Not Allowed");
  15.       }
  16.       @Override
  17.       public void checkPermission(Permission perm) {
  18.         // allow everything else
  19.       }
  20.     };
  21.     System.setSecurityManager(securityManager);
  22.     ac.refresh();
  23.     TestBean tb = ac.getBean("tb", TestBean.class);
  24.     assertEquals("NL", tb.getCountry());
  25.   }
  26.   finally {
  27.     System.setSecurityManager(oldSecurityManager);
  28.     System.getProperties().remove("country");
  29.   }
  30. }

代码示例来源：origin: google/guava

  1. public void testUnloadableInStaticFieldIfClosed() throws Exception {
  2.  if (isJdk9OrHigher()) {
  3.   return;
  4.  }
  5.  Policy oldPolicy = Policy.getPolicy();
  6.  SecurityManager oldSecurityManager = System.getSecurityManager();
  7.  try {
  8.   Policy.setPolicy(new PermissivePolicy());
  9.   System.setSecurityManager(new SecurityManager());
  10.   WeakReference<ClassLoader> loaderRef = doTestUnloadableInStaticFieldIfClosed();
  11.   GcFinalization.awaitClear(loaderRef);
  12.  } finally {
  13.   System.setSecurityManager(oldSecurityManager);
  14.   Policy.setPolicy(oldPolicy);
  15.  }
  16. }

代码示例来源：origin: spring-projects/spring-framework

  1. System.setSecurityManager(securityManager);
  2. System.setSecurityManager(oldSecurityManager);
  3. getModifiableSystemEnvironment().remove(ALLOWED_PROPERTY_NAME);
  4. getModifiableSystemEnvironment().remove(DISALLOWED_PROPERTY_NAME);

代码示例来源：origin: google/guava

  1. /**
  2.  * Tests that the use of a {@link FinalizableReferenceQueue} does not subsequently prevent the
  3.  * loader of that class from being garbage-collected even if there is a {@link SecurityManager}.
  4.  * The {@link SecurityManager} environment makes such leaks more likely because when you create a
  5.  * {@link URLClassLoader} with a {@link SecurityManager}, the creating code's {@link
  6.  * java.security.AccessControlContext} is captured, and that references the creating code's {@link
  7.  * ClassLoader}.
  8.  */
  9. public void testUnloadableWithSecurityManager() throws Exception {
  10.  if (isJdk9OrHigher()) {
  11.   return;
  12.  }
  13.  Policy oldPolicy = Policy.getPolicy();
  14.  SecurityManager oldSecurityManager = System.getSecurityManager();
  15.  try {
  16.   Policy.setPolicy(new PermissivePolicy());
  17.   System.setSecurityManager(new SecurityManager());
  18.   doTestUnloadable();
  19.  } finally {
  20.   System.setSecurityManager(oldSecurityManager);
  21.   Policy.setPolicy(oldPolicy);
  22.  }
  23. }

代码示例来源：origin: google/guava

  1. System.setSecurityManager(disallowFilesSecurityManager);
  2. try {
  3.  file.exists();

代码示例来源：origin: spring-projects/spring-framework

  1. @Test
  2. public void securityManagerDisallowsAccessToSystemEnvironmentButAllowsAccessToIndividualKeys() {
  3.   SecurityManager securityManager = new SecurityManager() {
  4.     @Override
  5.     public void checkPermission(Permission perm) {
  6.       // Disallowing access to System#getenv means that our
  7.       // ReadOnlySystemAttributesMap will come into play.
  8.       if ("getenv.*".equals(perm.getName())) {
  9.         throw new AccessControlException("Accessing the system environment is disallowed");
  10.       }
  11.     }
  12.   };
  13.   System.setSecurityManager(securityManager);
  14.   DefaultListableBeanFactory bf = new DefaultListableBeanFactory();
  15.   AnnotatedBeanDefinitionReader reader = new AnnotatedBeanDefinitionReader(bf);
  16.   reader.register(C1.class);
  17.   assertThat(bf.containsBean("c1"), is(true));
  18. }

代码示例来源：origin: google/guava

  1. /**
  2.  * Runs Runnable r with a security policy that permits precisely the specified permissions. If
  3.  * there is no current security manager, the runnable is run twice, both with and without a
  4.  * security manager. We require that any security manager permit getPolicy/setPolicy.
  5.  */
  6. public void runWithPermissions(Runnable r, Permission... permissions) {
  7.  SecurityManager sm = System.getSecurityManager();
  8.  if (sm == null) {
  9.   r.run();
  10.   Policy savedPolicy = Policy.getPolicy();
  11.   try {
  12.    Policy.setPolicy(permissivePolicy());
  13.    System.setSecurityManager(new SecurityManager());
  14.    runWithPermissions(r, permissions);
  15.   } finally {
  16.    System.setSecurityManager(null);
  17.    Policy.setPolicy(savedPolicy);
  18.   }
  19.  } else {
  20.   Policy savedPolicy = Policy.getPolicy();
  21.   AdjustablePolicy policy = new AdjustablePolicy(permissions);
  22.   Policy.setPolicy(policy);
  23.   try {
  24.    r.run();
  25.   } finally {
  26.    policy.addPermission(new SecurityPermission("setPolicy"));
  27.    Policy.setPolicy(savedPolicy);
  28.   }
  29.  }
  30. }

代码示例来源：origin: spring-projects/spring-framework

  1. @Test
  2. public void securityManagerDisallowsAccessToSystemEnvironmentAndDisallowsAccessToIndividualKey() {
  3.   SecurityManager securityManager = new SecurityManager() {
  4.     @Override
  5.     public void checkPermission(Permission perm) {
  6.       // Disallowing access to System#getenv means that our
  7.       // ReadOnlySystemAttributesMap will come into play.
  8.       if ("getenv.*".equals(perm.getName())) {
  9.         throw new AccessControlException("Accessing the system environment is disallowed");
  10.       }
  11.       // Disallowing access to the spring.profiles.active property means that
  12.       // the BeanDefinitionReader won't be able to determine which profiles are
  13.       // active. We should see an INFO-level message in the console about this
  14.       // and as a result, any components marked with a non-default profile will
  15.       // be ignored.
  16.       if (("getenv." + AbstractEnvironment.ACTIVE_PROFILES_PROPERTY_NAME).equals(perm.getName())) {
  17.         throw new AccessControlException(
  18.             format("Accessing system environment variable [%s] is disallowed",
  19.                 AbstractEnvironment.ACTIVE_PROFILES_PROPERTY_NAME));
  20.       }
  21.     }
  22.   };
  23.   System.setSecurityManager(securityManager);
  24.   DefaultListableBeanFactory bf = new DefaultListableBeanFactory();
  25.   AnnotatedBeanDefinitionReader reader = new AnnotatedBeanDefinitionReader(bf);
  26.   reader.register(C1.class);
  27.   assertThat(bf.containsBean("c1"), is(false));
  28. }

代码示例来源：origin: languagetool-org/languagetool

  1. @BeforeClass
  2. public static void startup() throws Exception {
  3.  Policy.setPolicy(new MyPolicy());
  4.  System.setSecurityManager(new SecurityManager());
  5. }

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