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

@Override
protected void after()
{
  System.setSecurityManager( originalSecurityManager );
}

代码示例来源：origin: google/guava

public void testExistsThrowsSecurityException() throws IOException, URISyntaxException {
 SecurityManager oldSecurityManager = System.getSecurityManager();
 try {
  doTestExistsThrowsSecurityException();
 } finally {
  System.setSecurityManager(oldSecurityManager);
 }
}

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

@After
public void tearDown() {
  env.remove(AbstractEnvironment.ACTIVE_PROFILES_PROPERTY_NAME);
  System.setSecurityManager(originalSecurityManager);
}

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

private void before() {
    securityManagerBefore = System.getSecurityManager();
    System.setSecurityManager(securityManager);
  }
};

代码示例来源：origin: google/guava

/**
 * Tests that the use of a {@link FinalizableReferenceQueue} does not subsequently prevent the
 * loader of that class from being garbage-collected.
 */
public void testUnloadableWithoutSecurityManager() throws Exception {
 if (isJdk9OrHigher()) {
  return;
 }
 SecurityManager oldSecurityManager = System.getSecurityManager();
 try {
  System.setSecurityManager(null);
  doTestUnloadable();
 } finally {
  System.setSecurityManager(oldSecurityManager);
 }
}

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

public CallbacksSecurityTests() {
  // setup security
  if (System.getSecurityManager() == null) {
    Policy policy = Policy.getPolicy();
    URL policyURL = getClass()
        .getResource(
            "/org/springframework/beans/factory/support/security/policy.all");
    System.setProperty("java.security.policy", policyURL.toString());
    System.setProperty("policy.allowSystemProperty", "true");
    policy.refresh();
    System.setSecurityManager(new SecurityManager());
  }
}

代码示例来源：origin: neo4j/neo4j

@Override
protected void before()
{
  originalSecurityManager = System.getSecurityManager();
  TestSecurityManager testSecurityManager = new TestSecurityManager( originalSecurityManager );
  System.setSecurityManager( testSecurityManager );
}

代码示例来源：origin: pentaho/pentaho-kettle

@After
public void tearDown() {
 System.setSecurityManager( oldSecurityManager );
 sysOutContent = null;
 sysErrContent = null;
 mockRepositoriesMeta = null;
 mockRepositoryMeta = null;
 mockRepository = null;
 mockRepositoryDirectory = null;
}

代码示例来源：origin: google/guava

System.setSecurityManager(
  new SecurityManager() {
   @Override
 assertEquals(oldName, Thread.currentThread().getName());
} finally {
 System.setSecurityManager(null);

代码示例来源：origin: pentaho/pentaho-kettle

@Before
public void setUp() throws KettleException {
 KettleEnvironment.init();
 oldSecurityManager = System.getSecurityManager();
 sysOutContent = new ByteArrayOutputStream();
 sysErrContent = new ByteArrayOutputStream();
 System.setSecurityManager( new MySecurityManager( oldSecurityManager ) );
 mockRepositoriesMeta = mock( RepositoriesMeta.class );
 mockRepositoryMeta = mock( RepositoryMeta.class );
 mockRepository = mock( Repository.class );
 mockRepositoryDirectory = mock( RepositoryDirectoryInterface.class );
}

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

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

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

@Test
public void systemPropertiesSecurityManager() {
  AnnotationConfigApplicationContext ac = new AnnotationConfigApplicationContext();
  GenericBeanDefinition bd = new GenericBeanDefinition();
  bd.setBeanClass(TestBean.class);
  bd.getPropertyValues().add("country", "#{systemProperties.country}");
  ac.registerBeanDefinition("tb", bd);
  SecurityManager oldSecurityManager = System.getSecurityManager();
  try {
    System.setProperty("country", "NL");
    SecurityManager securityManager = new SecurityManager() {
      @Override
      public void checkPropertiesAccess() {
        throw new AccessControlException("Not Allowed");
      }
      @Override
      public void checkPermission(Permission perm) {
        // allow everything else
      }
    };
    System.setSecurityManager(securityManager);
    ac.refresh();
    TestBean tb = ac.getBean("tb", TestBean.class);
    assertEquals("NL", tb.getCountry());
  }
  finally {
    System.setSecurityManager(oldSecurityManager);
    System.getProperties().remove("country");
  }
}

代码示例来源：origin: google/guava

public void testUnloadableInStaticFieldIfClosed() throws Exception {
 if (isJdk9OrHigher()) {
  return;
 }
 Policy oldPolicy = Policy.getPolicy();
 SecurityManager oldSecurityManager = System.getSecurityManager();
 try {
  Policy.setPolicy(new PermissivePolicy());
  System.setSecurityManager(new SecurityManager());
  WeakReference<ClassLoader> loaderRef = doTestUnloadableInStaticFieldIfClosed();
  GcFinalization.awaitClear(loaderRef);
 } finally {
  System.setSecurityManager(oldSecurityManager);
  Policy.setPolicy(oldPolicy);
 }
}

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

System.setSecurityManager(securityManager);
System.setSecurityManager(oldSecurityManager);
getModifiableSystemEnvironment().remove(ALLOWED_PROPERTY_NAME);
getModifiableSystemEnvironment().remove(DISALLOWED_PROPERTY_NAME);

代码示例来源：origin: google/guava

/**
 * Tests that the use of a {@link FinalizableReferenceQueue} does not subsequently prevent the
 * loader of that class from being garbage-collected even if there is a {@link SecurityManager}.
 * The {@link SecurityManager} environment makes such leaks more likely because when you create a
 * {@link URLClassLoader} with a {@link SecurityManager}, the creating code's {@link
 * java.security.AccessControlContext} is captured, and that references the creating code's {@link
 * ClassLoader}.
 */
public void testUnloadableWithSecurityManager() throws Exception {
 if (isJdk9OrHigher()) {
  return;
 }
 Policy oldPolicy = Policy.getPolicy();
 SecurityManager oldSecurityManager = System.getSecurityManager();
 try {
  Policy.setPolicy(new PermissivePolicy());
  System.setSecurityManager(new SecurityManager());
  doTestUnloadable();
 } finally {
  System.setSecurityManager(oldSecurityManager);
  Policy.setPolicy(oldPolicy);
 }
}

代码示例来源：origin: google/guava

System.setSecurityManager(disallowFilesSecurityManager);
try {
 file.exists();

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

@Test
public void securityManagerDisallowsAccessToSystemEnvironmentButAllowsAccessToIndividualKeys() {
  SecurityManager securityManager = new SecurityManager() {
    @Override
    public void checkPermission(Permission perm) {
      // Disallowing access to System#getenv means that our
      // ReadOnlySystemAttributesMap will come into play.
      if ("getenv.*".equals(perm.getName())) {
        throw new AccessControlException("Accessing the system environment is disallowed");
      }
    }
  };
  System.setSecurityManager(securityManager);
  DefaultListableBeanFactory bf = new DefaultListableBeanFactory();
  AnnotatedBeanDefinitionReader reader = new AnnotatedBeanDefinitionReader(bf);
  reader.register(C1.class);
  assertThat(bf.containsBean("c1"), is(true));
}

代码示例来源：origin: google/guava

/**
 * Runs Runnable r with a security policy that permits precisely the specified permissions. If
 * there is no current security manager, the runnable is run twice, both with and without a
 * security manager. We require that any security manager permit getPolicy/setPolicy.
 */
public void runWithPermissions(Runnable r, Permission... permissions) {
 SecurityManager sm = System.getSecurityManager();
 if (sm == null) {
  r.run();
  Policy savedPolicy = Policy.getPolicy();
  try {
   Policy.setPolicy(permissivePolicy());
   System.setSecurityManager(new SecurityManager());
   runWithPermissions(r, permissions);
  } finally {
   System.setSecurityManager(null);
   Policy.setPolicy(savedPolicy);
  }
 } else {
  Policy savedPolicy = Policy.getPolicy();
  AdjustablePolicy policy = new AdjustablePolicy(permissions);
  Policy.setPolicy(policy);
  try {
   r.run();
  } finally {
   policy.addPermission(new SecurityPermission("setPolicy"));
   Policy.setPolicy(savedPolicy);
  }
 }
}

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

@Test
public void securityManagerDisallowsAccessToSystemEnvironmentAndDisallowsAccessToIndividualKey() {
  SecurityManager securityManager = new SecurityManager() {
    @Override
    public void checkPermission(Permission perm) {
      // Disallowing access to System#getenv means that our
      // ReadOnlySystemAttributesMap will come into play.
      if ("getenv.*".equals(perm.getName())) {
        throw new AccessControlException("Accessing the system environment is disallowed");
      }
      // Disallowing access to the spring.profiles.active property means that
      // the BeanDefinitionReader won't be able to determine which profiles are
      // active. We should see an INFO-level message in the console about this
      // and as a result, any components marked with a non-default profile will
      // be ignored.
      if (("getenv." + AbstractEnvironment.ACTIVE_PROFILES_PROPERTY_NAME).equals(perm.getName())) {
        throw new AccessControlException(
            format("Accessing system environment variable [%s] is disallowed",
                AbstractEnvironment.ACTIVE_PROFILES_PROPERTY_NAME));
      }
    }
  };
  System.setSecurityManager(securityManager);
  DefaultListableBeanFactory bf = new DefaultListableBeanFactory();
  AnnotatedBeanDefinitionReader reader = new AnnotatedBeanDefinitionReader(bf);
  reader.register(C1.class);
  assertThat(bf.containsBean("c1"), is(false));
}

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

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