Java Code Examples for java.io.FileDescriptor#err()

The following examples show how to use java.io.FileDescriptor#err() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: FdTest3.java    From mini-jvm with GNU Lesser General Public License v3.0 5 votes vote down vote up
public static void main(String[] args) throws IOException {
  FileOutputStream err = new FileOutputStream(FileDescriptor.err);
  byte[] bytes = new byte[6];
  bytes[0] = 'h';
  bytes[1] = 'e';
  bytes[2] = 'l';
  bytes[3] = 'l';
  bytes[4] = 'o';
  bytes[5] = '\n';
  err.write(bytes);
  err.flush();
  err.close();
}
 
Example 2
Source File: FileUtils.java    From rtg-tools with BSD 2-Clause "Simplified" License 5 votes vote down vote up
private static OutputStream javaGetStderrAsOutputStream() {
  return new FileOutputStream(FileDescriptor.err) {
    @Override
    public void close() throws IOException {
      // Bad stuff happens if you really close stderr
      flush();
    }
  };
}
 
Example 3
Source File: TestFlag.java    From caja with Apache License 2.0 5 votes vote down vote up
private static RuntimeException error(String message) {
  // System.err is captured by ant-junit and goes to the test logs
  // FileDescriptor.err is captured by ant and goes to stdout.
  @SuppressWarnings("resource")
  PrintStream err = new PrintStream(
      new FileOutputStream(FileDescriptor.err), true);
  err.println(message);
  return new RuntimeException(message);
}
 
Example 4
Source File: PrintStreamTest.java    From mini-jvm with GNU Lesser General Public License v3.0 4 votes vote down vote up
public static void main(String[] args) {
  PrintStream err = new PrintStream(new BufferedOutputStream(new FileOutputStream(FileDescriptor.err)), true);
  err.println(1);
  err.println("xxxxxxxx");
}
 
Example 5
Source File: System.java    From Bytecoder with Apache License 2.0 4 votes vote down vote up
/**
 * Initialize the system class.  Called after thread initialization.
 */
private static void initPhase1() {
    // VM might invoke JNU_NewStringPlatform() to set those encoding
    // sensitive properties (user.home, user.name, boot.class.path, etc.)
    // during "props" initialization.
    // The charset is initialized in System.c and does not depend on the Properties.
    Map<String, String> tempProps = SystemProps.initProperties();
    VersionProps.init(tempProps);

    // There are certain system configurations that may be controlled by
    // VM options such as the maximum amount of direct memory and
    // Integer cache size used to support the object identity semantics
    // of autoboxing.  Typically, the library will obtain these values
    // from the properties set by the VM.  If the properties are for
    // internal implementation use only, these properties should be
    // masked from the system properties.
    //
    // Save a private copy of the system properties object that
    // can only be accessed by the internal implementation.
    VM.saveProperties(tempProps);
    props = createProperties(tempProps);

    StaticProperty.javaHome();          // Load StaticProperty to cache the property values

    lineSeparator = props.getProperty("line.separator");

    FileInputStream fdIn = new FileInputStream(FileDescriptor.in);
    FileOutputStream fdOut = new FileOutputStream(FileDescriptor.out);
    FileOutputStream fdErr = new FileOutputStream(FileDescriptor.err);
    setIn0(new BufferedInputStream(fdIn));
    setOut0(newPrintStream(fdOut, props.getProperty("sun.stdout.encoding")));
    setErr0(newPrintStream(fdErr, props.getProperty("sun.stderr.encoding")));

    // Setup Java signal handlers for HUP, TERM, and INT (where available).
    Terminator.setup();

    // Initialize any miscellaneous operating system settings that need to be
    // set for the class libraries. Currently this is no-op everywhere except
    // for Windows where the process-wide error mode is set before the java.io
    // classes are used.
    VM.initializeOSEnvironment();

    // The main thread is not added to its thread group in the same
    // way as other threads; we must do it ourselves here.
    Thread current = Thread.currentThread();
    current.getThreadGroup().add(current);

    // register shared secrets
    setJavaLangAccess();

    ClassLoader.initLibraryPaths();

    // Subsystems that are invoked during initialization can invoke
    // VM.isBooted() in order to avoid doing things that should
    // wait until the VM is fully initialized. The initialization level
    // is incremented from 0 to 1 here to indicate the first phase of
    // initialization has completed.
    // IMPORTANT: Ensure that this remains the last initialization action!
    VM.initLevel(1);
}
 
Example 6
Source File: System.java    From openjdk-jdk9 with GNU General Public License v2.0 4 votes vote down vote up
/**
 * Initialize the system class.  Called after thread initialization.
 */
private static void initPhase1() {

    // VM might invoke JNU_NewStringPlatform() to set those encoding
    // sensitive properties (user.home, user.name, boot.class.path, etc.)
    // during "props" initialization, in which it may need access, via
    // System.getProperty(), to the related system encoding property that
    // have been initialized (put into "props") at early stage of the
    // initialization. So make sure the "props" is available at the
    // very beginning of the initialization and all system properties to
    // be put into it directly.
    props = new Properties();
    initProperties(props);  // initialized by the VM

    // There are certain system configurations that may be controlled by
    // VM options such as the maximum amount of direct memory and
    // Integer cache size used to support the object identity semantics
    // of autoboxing.  Typically, the library will obtain these values
    // from the properties set by the VM.  If the properties are for
    // internal implementation use only, these properties should be
    // removed from the system properties.
    //
    // See java.lang.Integer.IntegerCache and the
    // VM.saveAndRemoveProperties method for example.
    //
    // Save a private copy of the system properties object that
    // can only be accessed by the internal implementation.  Remove
    // certain system properties that are not intended for public access.
    VM.saveAndRemoveProperties(props);

    lineSeparator = props.getProperty("line.separator");
    VersionProps.init();

    FileInputStream fdIn = new FileInputStream(FileDescriptor.in);
    FileOutputStream fdOut = new FileOutputStream(FileDescriptor.out);
    FileOutputStream fdErr = new FileOutputStream(FileDescriptor.err);
    setIn0(new BufferedInputStream(fdIn));
    setOut0(newPrintStream(fdOut, props.getProperty("sun.stdout.encoding")));
    setErr0(newPrintStream(fdErr, props.getProperty("sun.stderr.encoding")));

    // Load the zip library now in order to keep java.util.zip.ZipFile
    // from trying to use itself to load this library later.
    loadLibrary("zip");

    // Setup Java signal handlers for HUP, TERM, and INT (where available).
    Terminator.setup();

    // Initialize any miscellaneous operating system settings that need to be
    // set for the class libraries. Currently this is no-op everywhere except
    // for Windows where the process-wide error mode is set before the java.io
    // classes are used.
    VM.initializeOSEnvironment();

    // The main thread is not added to its thread group in the same
    // way as other threads; we must do it ourselves here.
    Thread current = Thread.currentThread();
    current.getThreadGroup().add(current);

    // register shared secrets
    setJavaLangAccess();

    // Subsystems that are invoked during initialization can invoke
    // VM.isBooted() in order to avoid doing things that should
    // wait until the VM is fully initialized. The initialization level
    // is incremented from 0 to 1 here to indicate the first phase of
    // initialization has completed.
    // IMPORTANT: Ensure that this remains the last initialization action!
    VM.initLevel(1);
}
 
Example 7
Source File: ProcessLauncherContext.java    From gemfirexd-oss with Apache License 2.0 4 votes vote down vote up
@SuppressWarnings("unused")
private void teeErrorStream() {
  final FileOutputStream fdErr = new FileOutputStream(FileDescriptor.err);
  this.err = new PrintStream(new BufferedOutputStream(fdErr, 128), true);
  System.setErr(new TeePrintStream(new TeeOutputStream(new BufferedOutputStream(fdErr, 128))));
}
 
Example 8
Source File: ProcessLauncherContext.java    From gemfirexd-oss with Apache License 2.0 4 votes vote down vote up
@SuppressWarnings("unused")
private void teeErrorStream() {
  final FileOutputStream fdErr = new FileOutputStream(FileDescriptor.err);
  this.err = new PrintStream(new BufferedOutputStream(fdErr, 128), true);
  System.setErr(new TeePrintStream(new TeeOutputStream(new BufferedOutputStream(fdErr, 128))));
}