author | ohair |
Wed, 06 Apr 2011 22:06:11 -0700 | |
changeset 9035 | 1255eb81cc2f |
parent 7803 | 56bc97d69d93 |
child 9275 | 1df1f7dfab7f |
permissions | -rw-r--r-- |
2 | 1 |
/* |
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1255eb81cc2f
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changeset
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* Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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package java.util.logging; |
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import java.io.*; |
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import java.nio.channels.FileChannel; |
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import java.nio.channels.FileLock; |
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import java.security.*; |
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/** |
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* Simple file logging <tt>Handler</tt>. |
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* <p> |
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* The <tt>FileHandler</tt> can either write to a specified file, |
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* or it can write to a rotating set of files. |
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* <p> |
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* For a rotating set of files, as each file reaches a given size |
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* limit, it is closed, rotated out, and a new file opened. |
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* Successively older files are named by adding "0", "1", "2", |
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* etc. into the base filename. |
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* <p> |
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* By default buffering is enabled in the IO libraries but each log |
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* record is flushed out when it is complete. |
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* <p> |
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* By default the <tt>XMLFormatter</tt> class is used for formatting. |
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* <p> |
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* <b>Configuration:</b> |
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* By default each <tt>FileHandler</tt> is initialized using the following |
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* <tt>LogManager</tt> configuration properties. If properties are not defined |
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* (or have invalid values) then the specified default values are used. |
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* <ul> |
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* <li> java.util.logging.FileHandler.level |
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* specifies the default level for the <tt>Handler</tt> |
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* (defaults to <tt>Level.ALL</tt>). |
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* <li> java.util.logging.FileHandler.filter |
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* specifies the name of a <tt>Filter</tt> class to use |
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* (defaults to no <tt>Filter</tt>). |
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* <li> java.util.logging.FileHandler.formatter |
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* specifies the name of a <tt>Formatter</tt> class to use |
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* (defaults to <tt>java.util.logging.XMLFormatter</tt>) |
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* <li> java.util.logging.FileHandler.encoding |
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* the name of the character set encoding to use (defaults to |
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* the default platform encoding). |
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* <li> java.util.logging.FileHandler.limit |
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* specifies an approximate maximum amount to write (in bytes) |
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* to any one file. If this is zero, then there is no limit. |
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* (Defaults to no limit). |
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* <li> java.util.logging.FileHandler.count |
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* specifies how many output files to cycle through (defaults to 1). |
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* <li> java.util.logging.FileHandler.pattern |
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* specifies a pattern for generating the output file name. See |
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* below for details. (Defaults to "%h/java%u.log"). |
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* <li> java.util.logging.FileHandler.append |
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* specifies whether the FileHandler should append onto |
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* any existing files (defaults to false). |
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* </ul> |
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* <p> |
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* <p> |
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* A pattern consists of a string that includes the following special |
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* components that will be replaced at runtime: |
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* <ul> |
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* <li> "/" the local pathname separator |
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* <li> "%t" the system temporary directory |
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* <li> "%h" the value of the "user.home" system property |
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* <li> "%g" the generation number to distinguish rotated logs |
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* <li> "%u" a unique number to resolve conflicts |
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* <li> "%%" translates to a single percent sign "%" |
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* </ul> |
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* If no "%g" field has been specified and the file count is greater |
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* than one, then the generation number will be added to the end of |
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* the generated filename, after a dot. |
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* <p> |
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* Thus for example a pattern of "%t/java%g.log" with a count of 2 |
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* would typically cause log files to be written on Solaris to |
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* /var/tmp/java0.log and /var/tmp/java1.log whereas on Windows 95 they |
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* would be typically written to C:\TEMP\java0.log and C:\TEMP\java1.log |
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* <p> |
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* Generation numbers follow the sequence 0, 1, 2, etc. |
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* <p> |
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* Normally the "%u" unique field is set to 0. However, if the <tt>FileHandler</tt> |
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* tries to open the filename and finds the file is currently in use by |
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* another process it will increment the unique number field and try |
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* again. This will be repeated until <tt>FileHandler</tt> finds a file name that |
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* is not currently in use. If there is a conflict and no "%u" field has |
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* been specified, it will be added at the end of the filename after a dot. |
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* (This will be after any automatically added generation number.) |
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* <p> |
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* Thus if three processes were all trying to log to fred%u.%g.txt then |
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* they might end up using fred0.0.txt, fred1.0.txt, fred2.0.txt as |
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* the first file in their rotating sequences. |
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* <p> |
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* Note that the use of unique ids to avoid conflicts is only guaranteed |
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* to work reliably when using a local disk file system. |
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* |
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* @since 1.4 |
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*/ |
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120 |
public class FileHandler extends StreamHandler { |
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private MeteredStream meter; |
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private boolean append; |
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private int limit; // zero => no limit. |
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private int count; |
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private String pattern; |
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private String lockFileName; |
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private FileOutputStream lockStream; |
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private File files[]; |
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private static final int MAX_LOCKS = 100; |
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private static java.util.HashMap<String, String> locks = new java.util.HashMap<>(); |
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// A metered stream is a subclass of OutputStream that |
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// (a) forwards all its output to a target stream |
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// (b) keeps track of how many bytes have been written |
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private class MeteredStream extends OutputStream { |
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OutputStream out; |
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int written; |
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MeteredStream(OutputStream out, int written) { |
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this.out = out; |
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this.written = written; |
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} |
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public void write(int b) throws IOException { |
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out.write(b); |
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written++; |
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} |
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149 |
public void write(byte buff[]) throws IOException { |
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out.write(buff); |
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written += buff.length; |
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} |
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public void write(byte buff[], int off, int len) throws IOException { |
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out.write(buff,off,len); |
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written += len; |
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} |
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public void flush() throws IOException { |
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out.flush(); |
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} |
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public void close() throws IOException { |
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out.close(); |
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} |
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} |
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private void open(File fname, boolean append) throws IOException { |
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int len = 0; |
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if (append) { |
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len = (int)fname.length(); |
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} |
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FileOutputStream fout = new FileOutputStream(fname.toString(), append); |
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BufferedOutputStream bout = new BufferedOutputStream(fout); |
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meter = new MeteredStream(bout, len); |
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setOutputStream(meter); |
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} |
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// Private method to configure a FileHandler from LogManager |
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// properties and/or default values as specified in the class |
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// javadoc. |
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private void configure() { |
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LogManager manager = LogManager.getLogManager(); |
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String cname = getClass().getName(); |
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pattern = manager.getStringProperty(cname + ".pattern", "%h/java%u.log"); |
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limit = manager.getIntProperty(cname + ".limit", 0); |
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if (limit < 0) { |
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limit = 0; |
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} |
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count = manager.getIntProperty(cname + ".count", 1); |
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if (count <= 0) { |
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count = 1; |
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} |
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append = manager.getBooleanProperty(cname + ".append", false); |
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setLevel(manager.getLevelProperty(cname + ".level", Level.ALL)); |
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setFilter(manager.getFilterProperty(cname + ".filter", null)); |
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setFormatter(manager.getFormatterProperty(cname + ".formatter", new XMLFormatter())); |
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try { |
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setEncoding(manager.getStringProperty(cname +".encoding", null)); |
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} catch (Exception ex) { |
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try { |
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setEncoding(null); |
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} catch (Exception ex2) { |
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// doing a setEncoding with null should always work. |
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// assert false; |
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} |
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} |
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} |
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212 |
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/** |
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* Construct a default <tt>FileHandler</tt>. This will be configured |
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* entirely from <tt>LogManager</tt> properties (or their default values). |
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* <p> |
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217 |
* @exception IOException if there are IO problems opening the files. |
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* @exception SecurityException if a security manager exists and if |
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* the caller does not have <tt>LoggingPermission("control"))</tt>. |
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* @exception NullPointerException if pattern property is an empty String. |
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*/ |
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222 |
public FileHandler() throws IOException, SecurityException { |
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223 |
checkAccess(); |
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configure(); |
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openFiles(); |
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} |
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227 |
||
228 |
/** |
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229 |
* Initialize a <tt>FileHandler</tt> to write to the given filename. |
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230 |
* <p> |
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231 |
* The <tt>FileHandler</tt> is configured based on <tt>LogManager</tt> |
|
232 |
* properties (or their default values) except that the given pattern |
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233 |
* argument is used as the filename pattern, the file limit is |
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234 |
* set to no limit, and the file count is set to one. |
|
235 |
* <p> |
|
236 |
* There is no limit on the amount of data that may be written, |
|
237 |
* so use this with care. |
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238 |
* |
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239 |
* @param pattern the name of the output file |
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240 |
* @exception IOException if there are IO problems opening the files. |
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241 |
* @exception SecurityException if a security manager exists and if |
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242 |
* the caller does not have <tt>LoggingPermission("control")</tt>. |
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243 |
* @exception IllegalArgumentException if pattern is an empty string |
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244 |
*/ |
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245 |
public FileHandler(String pattern) throws IOException, SecurityException { |
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246 |
if (pattern.length() < 1 ) { |
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247 |
throw new IllegalArgumentException(); |
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248 |
} |
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249 |
checkAccess(); |
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250 |
configure(); |
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251 |
this.pattern = pattern; |
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this.limit = 0; |
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this.count = 1; |
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openFiles(); |
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255 |
} |
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256 |
||
257 |
/** |
|
258 |
* Initialize a <tt>FileHandler</tt> to write to the given filename, |
|
259 |
* with optional append. |
|
260 |
* <p> |
|
261 |
* The <tt>FileHandler</tt> is configured based on <tt>LogManager</tt> |
|
262 |
* properties (or their default values) except that the given pattern |
|
263 |
* argument is used as the filename pattern, the file limit is |
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264 |
* set to no limit, the file count is set to one, and the append |
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265 |
* mode is set to the given <tt>append</tt> argument. |
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266 |
* <p> |
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267 |
* There is no limit on the amount of data that may be written, |
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268 |
* so use this with care. |
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269 |
* |
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270 |
* @param pattern the name of the output file |
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271 |
* @param append specifies append mode |
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* @exception IOException if there are IO problems opening the files. |
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273 |
* @exception SecurityException if a security manager exists and if |
|
274 |
* the caller does not have <tt>LoggingPermission("control")</tt>. |
|
275 |
* @exception IllegalArgumentException if pattern is an empty string |
|
276 |
*/ |
|
277 |
public FileHandler(String pattern, boolean append) throws IOException, SecurityException { |
|
278 |
if (pattern.length() < 1 ) { |
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279 |
throw new IllegalArgumentException(); |
|
280 |
} |
|
281 |
checkAccess(); |
|
282 |
configure(); |
|
283 |
this.pattern = pattern; |
|
284 |
this.limit = 0; |
|
285 |
this.count = 1; |
|
286 |
this.append = append; |
|
287 |
openFiles(); |
|
288 |
} |
|
289 |
||
290 |
/** |
|
291 |
* Initialize a <tt>FileHandler</tt> to write to a set of files. When |
|
292 |
* (approximately) the given limit has been written to one file, |
|
293 |
* another file will be opened. The output will cycle through a set |
|
294 |
* of count files. |
|
295 |
* <p> |
|
296 |
* The <tt>FileHandler</tt> is configured based on <tt>LogManager</tt> |
|
297 |
* properties (or their default values) except that the given pattern |
|
298 |
* argument is used as the filename pattern, the file limit is |
|
299 |
* set to the limit argument, and the file count is set to the |
|
300 |
* given count argument. |
|
301 |
* <p> |
|
302 |
* The count must be at least 1. |
|
303 |
* |
|
304 |
* @param pattern the pattern for naming the output file |
|
305 |
* @param limit the maximum number of bytes to write to any one file |
|
306 |
* @param count the number of files to use |
|
307 |
* @exception IOException if there are IO problems opening the files. |
|
308 |
* @exception SecurityException if a security manager exists and if |
|
309 |
* the caller does not have <tt>LoggingPermission("control")</tt>. |
|
310 |
* @exception IllegalArgumentException if limit < 0, or count < 1. |
|
311 |
* @exception IllegalArgumentException if pattern is an empty string |
|
312 |
*/ |
|
313 |
public FileHandler(String pattern, int limit, int count) |
|
314 |
throws IOException, SecurityException { |
|
315 |
if (limit < 0 || count < 1 || pattern.length() < 1) { |
|
316 |
throw new IllegalArgumentException(); |
|
317 |
} |
|
318 |
checkAccess(); |
|
319 |
configure(); |
|
320 |
this.pattern = pattern; |
|
321 |
this.limit = limit; |
|
322 |
this.count = count; |
|
323 |
openFiles(); |
|
324 |
} |
|
325 |
||
326 |
/** |
|
327 |
* Initialize a <tt>FileHandler</tt> to write to a set of files |
|
328 |
* with optional append. When (approximately) the given limit has |
|
329 |
* been written to one file, another file will be opened. The |
|
330 |
* output will cycle through a set of count files. |
|
331 |
* <p> |
|
332 |
* The <tt>FileHandler</tt> is configured based on <tt>LogManager</tt> |
|
333 |
* properties (or their default values) except that the given pattern |
|
334 |
* argument is used as the filename pattern, the file limit is |
|
335 |
* set to the limit argument, and the file count is set to the |
|
336 |
* given count argument, and the append mode is set to the given |
|
337 |
* <tt>append</tt> argument. |
|
338 |
* <p> |
|
339 |
* The count must be at least 1. |
|
340 |
* |
|
341 |
* @param pattern the pattern for naming the output file |
|
342 |
* @param limit the maximum number of bytes to write to any one file |
|
343 |
* @param count the number of files to use |
|
344 |
* @param append specifies append mode |
|
345 |
* @exception IOException if there are IO problems opening the files. |
|
346 |
* @exception SecurityException if a security manager exists and if |
|
347 |
* the caller does not have <tt>LoggingPermission("control")</tt>. |
|
348 |
* @exception IllegalArgumentException if limit < 0, or count < 1. |
|
349 |
* @exception IllegalArgumentException if pattern is an empty string |
|
350 |
* |
|
351 |
*/ |
|
352 |
public FileHandler(String pattern, int limit, int count, boolean append) |
|
353 |
throws IOException, SecurityException { |
|
354 |
if (limit < 0 || count < 1 || pattern.length() < 1) { |
|
355 |
throw new IllegalArgumentException(); |
|
356 |
} |
|
357 |
checkAccess(); |
|
358 |
configure(); |
|
359 |
this.pattern = pattern; |
|
360 |
this.limit = limit; |
|
361 |
this.count = count; |
|
362 |
this.append = append; |
|
363 |
openFiles(); |
|
364 |
} |
|
365 |
||
366 |
// Private method to open the set of output files, based on the |
|
367 |
// configured instance variables. |
|
368 |
private void openFiles() throws IOException { |
|
369 |
LogManager manager = LogManager.getLogManager(); |
|
370 |
manager.checkAccess(); |
|
371 |
if (count < 1) { |
|
372 |
throw new IllegalArgumentException("file count = " + count); |
|
373 |
} |
|
374 |
if (limit < 0) { |
|
375 |
limit = 0; |
|
376 |
} |
|
377 |
||
378 |
// We register our own ErrorManager during initialization |
|
379 |
// so we can record exceptions. |
|
380 |
InitializationErrorManager em = new InitializationErrorManager(); |
|
381 |
setErrorManager(em); |
|
382 |
||
383 |
// Create a lock file. This grants us exclusive access |
|
384 |
// to our set of output files, as long as we are alive. |
|
385 |
int unique = -1; |
|
386 |
for (;;) { |
|
387 |
unique++; |
|
388 |
if (unique > MAX_LOCKS) { |
|
389 |
throw new IOException("Couldn't get lock for " + pattern); |
|
390 |
} |
|
391 |
// Generate a lock file name from the "unique" int. |
|
392 |
lockFileName = generate(pattern, 0, unique).toString() + ".lck"; |
|
393 |
// Now try to lock that filename. |
|
3853 | 394 |
// Because some systems (e.g., Solaris) can only do file locks |
2 | 395 |
// between processes (and not within a process), we first check |
396 |
// if we ourself already have the file locked. |
|
397 |
synchronized(locks) { |
|
398 |
if (locks.get(lockFileName) != null) { |
|
399 |
// We already own this lock, for a different FileHandler |
|
400 |
// object. Try again. |
|
401 |
continue; |
|
402 |
} |
|
403 |
FileChannel fc; |
|
404 |
try { |
|
405 |
lockStream = new FileOutputStream(lockFileName); |
|
406 |
fc = lockStream.getChannel(); |
|
407 |
} catch (IOException ix) { |
|
408 |
// We got an IOException while trying to open the file. |
|
409 |
// Try the next file. |
|
410 |
continue; |
|
411 |
} |
|
412 |
try { |
|
413 |
FileLock fl = fc.tryLock(); |
|
414 |
if (fl == null) { |
|
415 |
// We failed to get the lock. Try next file. |
|
416 |
continue; |
|
417 |
} |
|
418 |
// We got the lock OK. |
|
419 |
} catch (IOException ix) { |
|
420 |
// We got an IOException while trying to get the lock. |
|
421 |
// This normally indicates that locking is not supported |
|
422 |
// on the target directory. We have to proceed without |
|
423 |
// getting a lock. Drop through. |
|
424 |
} |
|
425 |
// We got the lock. Remember it. |
|
426 |
locks.put(lockFileName, lockFileName); |
|
427 |
break; |
|
428 |
} |
|
429 |
} |
|
430 |
||
431 |
files = new File[count]; |
|
432 |
for (int i = 0; i < count; i++) { |
|
433 |
files[i] = generate(pattern, i, unique); |
|
434 |
} |
|
435 |
||
436 |
// Create the initial log file. |
|
437 |
if (append) { |
|
438 |
open(files[0], true); |
|
439 |
} else { |
|
440 |
rotate(); |
|
441 |
} |
|
442 |
||
443 |
// Did we detect any exceptions during initialization? |
|
444 |
Exception ex = em.lastException; |
|
445 |
if (ex != null) { |
|
446 |
if (ex instanceof IOException) { |
|
447 |
throw (IOException) ex; |
|
448 |
} else if (ex instanceof SecurityException) { |
|
449 |
throw (SecurityException) ex; |
|
450 |
} else { |
|
451 |
throw new IOException("Exception: " + ex); |
|
452 |
} |
|
453 |
} |
|
454 |
||
455 |
// Install the normal default ErrorManager. |
|
456 |
setErrorManager(new ErrorManager()); |
|
457 |
} |
|
458 |
||
459 |
// Generate a filename from a pattern. |
|
460 |
private File generate(String pattern, int generation, int unique) throws IOException { |
|
461 |
File file = null; |
|
462 |
String word = ""; |
|
463 |
int ix = 0; |
|
464 |
boolean sawg = false; |
|
465 |
boolean sawu = false; |
|
466 |
while (ix < pattern.length()) { |
|
467 |
char ch = pattern.charAt(ix); |
|
468 |
ix++; |
|
469 |
char ch2 = 0; |
|
470 |
if (ix < pattern.length()) { |
|
471 |
ch2 = Character.toLowerCase(pattern.charAt(ix)); |
|
472 |
} |
|
473 |
if (ch == '/') { |
|
474 |
if (file == null) { |
|
475 |
file = new File(word); |
|
476 |
} else { |
|
477 |
file = new File(file, word); |
|
478 |
} |
|
479 |
word = ""; |
|
480 |
continue; |
|
481 |
} else if (ch == '%') { |
|
482 |
if (ch2 == 't') { |
|
483 |
String tmpDir = System.getProperty("java.io.tmpdir"); |
|
484 |
if (tmpDir == null) { |
|
485 |
tmpDir = System.getProperty("user.home"); |
|
486 |
} |
|
487 |
file = new File(tmpDir); |
|
488 |
ix++; |
|
489 |
word = ""; |
|
490 |
continue; |
|
491 |
} else if (ch2 == 'h') { |
|
492 |
file = new File(System.getProperty("user.home")); |
|
493 |
if (isSetUID()) { |
|
494 |
// Ok, we are in a set UID program. For safety's sake |
|
495 |
// we disallow attempts to open files relative to %h. |
|
496 |
throw new IOException("can't use %h in set UID program"); |
|
497 |
} |
|
498 |
ix++; |
|
499 |
word = ""; |
|
500 |
continue; |
|
501 |
} else if (ch2 == 'g') { |
|
502 |
word = word + generation; |
|
503 |
sawg = true; |
|
504 |
ix++; |
|
505 |
continue; |
|
506 |
} else if (ch2 == 'u') { |
|
507 |
word = word + unique; |
|
508 |
sawu = true; |
|
509 |
ix++; |
|
510 |
continue; |
|
511 |
} else if (ch2 == '%') { |
|
512 |
word = word + "%"; |
|
513 |
ix++; |
|
514 |
continue; |
|
515 |
} |
|
516 |
} |
|
517 |
word = word + ch; |
|
518 |
} |
|
519 |
if (count > 1 && !sawg) { |
|
520 |
word = word + "." + generation; |
|
521 |
} |
|
522 |
if (unique > 0 && !sawu) { |
|
523 |
word = word + "." + unique; |
|
524 |
} |
|
525 |
if (word.length() > 0) { |
|
526 |
if (file == null) { |
|
527 |
file = new File(word); |
|
528 |
} else { |
|
529 |
file = new File(file, word); |
|
530 |
} |
|
531 |
} |
|
532 |
return file; |
|
533 |
} |
|
534 |
||
535 |
// Rotate the set of output files |
|
536 |
private synchronized void rotate() { |
|
537 |
Level oldLevel = getLevel(); |
|
538 |
setLevel(Level.OFF); |
|
539 |
||
540 |
super.close(); |
|
541 |
for (int i = count-2; i >= 0; i--) { |
|
542 |
File f1 = files[i]; |
|
543 |
File f2 = files[i+1]; |
|
544 |
if (f1.exists()) { |
|
545 |
if (f2.exists()) { |
|
546 |
f2.delete(); |
|
547 |
} |
|
548 |
f1.renameTo(f2); |
|
549 |
} |
|
550 |
} |
|
551 |
try { |
|
552 |
open(files[0], false); |
|
553 |
} catch (IOException ix) { |
|
554 |
// We don't want to throw an exception here, but we |
|
555 |
// report the exception to any registered ErrorManager. |
|
556 |
reportError(null, ix, ErrorManager.OPEN_FAILURE); |
|
557 |
||
558 |
} |
|
559 |
setLevel(oldLevel); |
|
560 |
} |
|
561 |
||
562 |
/** |
|
563 |
* Format and publish a <tt>LogRecord</tt>. |
|
564 |
* |
|
565 |
* @param record description of the log event. A null record is |
|
566 |
* silently ignored and is not published |
|
567 |
*/ |
|
568 |
public synchronized void publish(LogRecord record) { |
|
569 |
if (!isLoggable(record)) { |
|
570 |
return; |
|
571 |
} |
|
572 |
super.publish(record); |
|
573 |
flush(); |
|
574 |
if (limit > 0 && meter.written >= limit) { |
|
575 |
// We performed access checks in the "init" method to make sure |
|
576 |
// we are only initialized from trusted code. So we assume |
|
577 |
// it is OK to write the target files, even if we are |
|
578 |
// currently being called from untrusted code. |
|
579 |
// So it is safe to raise privilege here. |
|
580 |
AccessController.doPrivileged(new PrivilegedAction<Object>() { |
|
581 |
public Object run() { |
|
582 |
rotate(); |
|
583 |
return null; |
|
584 |
} |
|
585 |
}); |
|
586 |
} |
|
587 |
} |
|
588 |
||
589 |
/** |
|
590 |
* Close all the files. |
|
591 |
* |
|
592 |
* @exception SecurityException if a security manager exists and if |
|
593 |
* the caller does not have <tt>LoggingPermission("control")</tt>. |
|
594 |
*/ |
|
595 |
public synchronized void close() throws SecurityException { |
|
596 |
super.close(); |
|
597 |
// Unlock any lock file. |
|
598 |
if (lockFileName == null) { |
|
599 |
return; |
|
600 |
} |
|
601 |
try { |
|
602 |
// Closing the lock file's FileOutputStream will close |
|
603 |
// the underlying channel and free any locks. |
|
604 |
lockStream.close(); |
|
605 |
} catch (Exception ex) { |
|
606 |
// Problems closing the stream. Punt. |
|
607 |
} |
|
608 |
synchronized(locks) { |
|
609 |
locks.remove(lockFileName); |
|
610 |
} |
|
611 |
new File(lockFileName).delete(); |
|
612 |
lockFileName = null; |
|
613 |
lockStream = null; |
|
614 |
} |
|
615 |
||
616 |
private static class InitializationErrorManager extends ErrorManager { |
|
617 |
Exception lastException; |
|
618 |
public void error(String msg, Exception ex, int code) { |
|
619 |
lastException = ex; |
|
620 |
} |
|
621 |
} |
|
622 |
||
623 |
// Private native method to check if we are in a set UID program. |
|
624 |
private static native boolean isSetUID(); |
|
625 |
} |