Example usage for java.lang SecurityManager checkPropertiesAccess

Introduction

In this page you can find the example usage for java.lang SecurityManager checkPropertiesAccess.

Prototype

public void checkPropertiesAccess() 

Source Link

Document

Throws a SecurityException if the calling thread is not allowed to access or modify the system properties.

Usage

From source file:Main.java

public static void main(String[] args) {
    System.setProperty("java.security.policy", "file:/C:/java.policy");

    SecurityManager sm = new Main();

    System.setSecurityManager(sm);

    sm.checkPropertiesAccess();

    System.out.println("Allowed!");
}

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From source file:org.apache.camel.management.DefaultManagementAgent.java

protected void createMBeanServer() {
    String hostName;/*from   w w  w  .  jav  a 2  s.c  o  m*/
    boolean canAccessSystemProps = true;
    try {
        // we'll do it this way mostly to determine if we should lookup the hostName
        SecurityManager sm = System.getSecurityManager();
        if (sm != null) {
            sm.checkPropertiesAccess();
        }
    } catch (SecurityException se) {
        canAccessSystemProps = false;
    }

    if (canAccessSystemProps) {
        try {
            hostName = InetAddress.getLocalHost().getHostName();
        } catch (UnknownHostException uhe) {
            LOG.info("Cannot determine localhost name. Using default: " + DEFAULT_REGISTRY_PORT, uhe);
            hostName = DEFAULT_HOST;
        }
    } else {
        hostName = DEFAULT_HOST;
    }

    server = findOrCreateMBeanServer();

    try {
        // Create the connector if we need
        if (createConnector) {
            createJmxConnector(hostName);
        }
    } catch (IOException ioe) {
        LOG.warn("Could not create and start JMX connector.", ioe);
    }
}

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