本文整理了Java中java.lang.SecurityManager类的一些代码示例，展示了SecurityManager类的具体用法。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。SecurityManager类的具体详情如下：
包路径：java.lang.SecurityManager
类名称：SecurityManager

SecurityManager介绍

[英]Legacy security code; do not use.

Security managers do not provide a secure environment for executing untrusted code. Untrusted code cannot be safely isolated within the Dalvik VM.
[中]遗留安全代码；不要使用。
安全管理器不提供执行不受信任代码的安全环境。不受信任的代码无法在Dalvik VM中安全隔离。

代码示例

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

private static void checkPermission(final Permission permission) {
  if (SECURITY_MANAGER != null) {
    SECURITY_MANAGER.checkPermission(permission);
  }
}

代码示例来源：origin: apache/incubator-dubbo

public NamedThreadFactory(String prefix, boolean daemon) {
  mPrefix = prefix + "-thread-";
  mDaemon = daemon;
  SecurityManager s = System.getSecurityManager();
  mGroup = (s == null) ? Thread.currentThread().getThreadGroup() : s.getThreadGroup();
}

代码示例来源：origin: javax.xml.bind/jaxb-api

static void checkPackageAccess(String className) {
  // make sure that the current thread has an access to the package of the given name.
  SecurityManager s = System.getSecurityManager();
  if (s != null) {
    int i = className.lastIndexOf('.');
    if (i != -1) {
      s.checkPackageAccess(className.substring(0, i));
    }
  }
}

代码示例来源：origin: redisson/redisson

protected Class<?>[] getClassContext() {
    return super.getClassContext();
  }
}

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: bytedeco/javacpp

@Override public Class[] getClassContext() {
    return super.getClassContext();
  }
}.getClassContext();

代码示例来源：origin: groovy/groovy-core

protected void setUp() {
  if (checkSecurity()) {
    securityManager = System.getSecurityManager();
    if (securityManager == null) {
      System.setSecurityManager(new SecurityManager());
    }
  }
  currentClassLoader = Thread.currentThread().getContextClassLoader();
  AccessController.doPrivileged(new PrivilegedAction() {
    public Object run() {
      Thread.currentThread().setContextClassLoader(loader);
      return null;
    }
  });
}

代码示例来源：origin: prestodb/presto

/**
 * Get a factory for creating "unsafe" slices that can reference
 * arbitrary memory addresses. If there is a security manager, its
 * {@code checkPermission} method is called with a
 * {@code ReflectPermission("suppressAccessChecks")} permission.
 *
 * @return an unsafe slice factory
 */
public static UnsafeSliceFactory getInstance()
{
  // see setAccessible() in AccessibleObject
  SecurityManager sm = System.getSecurityManager();
  if (sm != null) {
    sm.checkPermission(ACCESS_PERMISSION);
  }
  return INSTANCE;
}

代码示例来源：origin: apache/incubator-dubbo

public NamedThreadFactory(String prefix, boolean daemon) {
  mPrefix = prefix + "-thread-";
  mDaemon = daemon;
  SecurityManager s = System.getSecurityManager();
  mGroup = (s == null) ? Thread.currentThread().getThreadGroup() : s.getThreadGroup();
}

代码示例来源：origin: org.springframework.boot/spring-boot

private void checkPackageAccess(String name) throws ClassNotFoundException {
  if (this.securityManager != null && name.lastIndexOf('.') >= 0) {
    try {
      this.securityManager
          .checkPackageAccess(name.substring(0, name.lastIndexOf('.')));
    }
    catch (SecurityException ex) {
      throw new ClassNotFoundException("Security Violation, attempt to use "
          + "Restricted Class: " + name, ex);
    }
  }
}

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

@Override
protected Class<?>[] getClassContext() {
  return super.getClassContext();
}

代码示例来源：origin: ben-manes/caffeine

/**
 * Runs all JSR166 unit tests using junit.textui.TestRunner.
 * Optional command line arg provides the number of iterations to
 * repeat running the tests.
 */
public static void main(String[] args) {
  if (useSecurityManager) {
    System.err.println("Setting a permissive security manager");
    Policy.setPolicy(permissivePolicy());
    System.setSecurityManager(new SecurityManager());
  }
  int iters = (args.length == 0) ? 1 : Integer.parseInt(args[0]);
  Test s = suite();
  for (int i = 0; i < iters; ++i) {
    junit.textui.TestRunner.run(s);
    System.gc();
    System.runFinalization();
  }
  System.exit(0);
}

代码示例来源：origin: MovingBlocks/Terasology

/**
 * @return A PrivateIndentityCertificate belonging to the player, if possible (exists and is allowed)
 */
public PrivateIdentityCertificate getPlayerPrivateCertificate() {
  if (System.getSecurityManager() != null) {
    System.getSecurityManager().checkPermission(SecurityConfig.PRIVATE_CERTIFICATE_ACCESS_PERMISSION);
  }
  return playerPrivateCertificate;
}

代码示例来源：origin: netty/netty

public DefaultThreadFactory(String poolName, boolean daemon, int priority) {
  this(poolName, daemon, priority, System.getSecurityManager() == null ?
      Thread.currentThread().getThreadGroup() : System.getSecurityManager().getThreadGroup());
}

代码示例来源：origin: wildfly/wildfly

public void checkPackageAccess(final String pkg) {
  if (doCheck()) {
    super.checkPackageAccess(pkg);
  }
}

代码示例来源：origin: wildfly/wildfly

protected Class<?>[] getClassContext() {
    return super.getClassContext();
  }
}

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: MovingBlocks/Terasology

private void checkPermission(Permission permission) {
  if (System.getSecurityManager() != null) {
    System.getSecurityManager().checkPermission(permission);
  }
}

代码示例来源：origin: alibaba/canal

public NamedThreadFactory(String name, boolean daemon){
  this.name = name;
  this.daemon = daemon;
  SecurityManager s = System.getSecurityManager();
  group = (s != null) ? s.getThreadGroup() : Thread.currentThread().getThreadGroup();
}

代码示例来源：origin: frohoff/ysoserial

@Override
public void checkPackageAccess(String pkg) {
  getSecurityManager().checkPackageAccess(pkg);
}