jdk-sandbox: comparison jdk/src/linux/doc/man/jdb.1

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+." Copyright (c) 1995, 2011, Oracle and/or its affiliates. All rights reserved.
 ." DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 ."
 ." This code is free software; you can redistribute it and/or modify it
 ." under the terms of the GNU General Public License version 2 only, as
 ." published by the Free Software Foundation.
 ."
 ." Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 ." or visit www.oracle.com if you need additional information or have any
 ." questions.
 ."
-.TH jdb 1 "02 Jun 2010"
+.TH jdb 1 "10 May 2011"
 .LP
 .SH "Name"
 jdb \- The Java Debugger
 .LP
-.RS 3
-.LP
 .LP
 \f3jdb\fP helps you find and fix bugs in Java language programs.
 .LP
-.RE
 .SH "SYNOPSIS"
 .LP
-.LP
 .nf
 \f3
 .fl
 \fP\f3jdb\fP [ options ] [ class ] [ arguments ]
 .fl
 .fi
-.LP
-.RS 3
 .LP
 .RS 3
 .TP 3
 options
 arguments
 Arguments passed to the \f2main()\fP method of \f2class\fP.
 .RE
 .LP
-.RE
 .SH "DESCRIPTION"
-.LP
 .LP
 .LP
 The Java Debugger, \f3jdb\fP, is a simple command\-line debugger for Java classes. It is a demonstration of the
 .na
 \f2Java Platform Debugger Architecture\fP @
 .fi
-http://java.sun.com/javase/6/docs/technotes/guides/jpda/index.html that provides inspection and debugging of a local or remote Java Virtual Machine.
+http://download.oracle.com/javase/7/docs/technotes/guides/jpda/index.html that provides inspection and debugging of a local or remote Java Virtual Machine.
 .LP
 .SS
 Starting a jdb Session
-.LP
-.RS 3
 .LP
 .LP
 There are many ways to start a jdb session. The most frequently used way is to have \f3jdb\fP launch a new Java Virtual Machine (VM) with the main class of the application to be debugged. This is done by substituting the command \f3jdb\fP for \f3java\fP in the command line. For example, if your application's main class is MyClass, you use the following command to debug it under JDB:
 .LP
 .nf
 .LP
 There are many other ways to connect the debugger to a VM, and all of them are supported by \f3jdb\fP. The Java Platform Debugger Architecture has additional
 .na
 \f2documentation\fP @
 .fi
-http://java.sun.com/javase/6/docs/technotes/guides/jpda/conninv.html on these connection options. For information on starting a J2SE 1.4.2 or early VM for use with \f3jdb\fP see the
+http://download.oracle.com/javase/7/docs/technotes/guides/jpda/conninv.html on these connection options. For information on starting a J2SE 1.4.2 or early VM for use with \f3jdb\fP see the
 .na
 \f21.4.2 documentation\fP @
 .fi
 http://java.sun.com/j2se/1.4.2/docs/guide/jpda/conninv.html
 .LP
 .LP
 .LP
 The following is a list of the basic \f3jdb\fP commands. The Java debugger supports other commands which you can list using \f3jdb\fP's \f2help\fP command.
 .LP
 .RS 3
-.LP
-.RS 3
 .TP 3
 help, or ?
 The most important \f3jdb\fP command, \f2help\fP displays the list of recognized commands with a brief description.
 .TP 3
 run
 .TP 3
 cont
 Continues execution of the debugged application after a breakpoint, exception, or step.
 .TP 3
 print
 Displays Java objects and primitive values. For variables or fields of primitive types, the actual value is printed. For objects, a short description is printed. See the \f2dump\fP command below for getting more information about an object.
-.LP
+.br
-\f2NOTE: To display local variables, the containing class must have been compiled with the \fP\f2javac(1)\fP\f2 \fP\f2\-g\fP option.
+.br
-.LP
+\f2NOTE: To display local variables, the containing class must have been compiled with the \fP\f2javac(1)\fP\f2 \fP\f2\-g\fP option.
+.br
+.br
 \f2print\fP supports many simple Java expressions including those with method invocations, for example:
 .RS 3
 .TP 2
 o
 \f2print MyClass.myStaticField\fP
 o
 \f2print new java.lang.String("Hello").length()\fP
 .RE
 .TP 3
 dump
 For primitive values, this command is identical to \f2print\fP. For objects, it prints the current value of each field defined in the object. Static and instance fields are included.
-.LP
+.br
-The \f2dump\fP command supports the same set of expressions as the \f2print\fP command.
+.br
+The \f2dump\fP command supports the same set of expressions as the \f2print\fP command.
 .TP 3
 threads
 List the threads that are currently running. For each thread, its name and current status are printed, as well as an index that can be used for other commands, for example:
-.RS 3
-.LP
 .nf
 \f3
 .fl
 4. (java.lang.Thread)0x1 main      running
 .fl
 \fP
 .fi
-.RE
 In this example, the thread index is 4, the thread is an instance of java.lang.Thread, the thread name is "main", and it is currently running,
 .TP 3
 thread
 Select a thread to be the current thread. Many \f3jdb\fP commands are based on the setting of the current thread. The thread is specified with the thread index described in the \f2threads\fP command above.
 .TP 3
 where
 \f2where\fP with no arguments dumps the stack of the current thread. \f2where all\fP dumps the stack of all threads in the current thread group. \f2where\fP \f2threadindex\fP dumps the stack of the specified thread.
-.LP
+.br
-If the current thread is suspended (either through an event such as a breakpoint or through the \f2suspend\fP command), local variables and fields can be displayed with the \f2print\fP and \f2dump\fP commands. The \f2up\fP and \f2down\fP commands select which stack frame is current.
+.br
-.RE
+If the current thread is suspended (either through an event such as a breakpoint or through the \f2suspend\fP command), local variables and fields can be displayed with the \f2print\fP and \f2dump\fP commands. The \f2up\fP and \f2down\fP commands select which stack frame is current.
+.RE
-.LP
-.RE
+.LP
 .SS
 Breakpoints
 .LP
-.RS 3
-.LP
 .LP
 Breakpoints can be set in \f3jdb\fP at line numbers or at the first instruction of a method, for example:
 .LP
 .RS 3
 .TP 2
 If a method is overloaded, you must also specify its argument types so that the proper method can be selected for a breakpoint. For example, "\f2MyClass.myMethod(int,java.lang.String)\fP", or "\f2MyClass.myMethod()\fP".
 .LP
 .LP
 The \f2clear\fP command removes breakpoints using a syntax as in "\f2clear\ MyClass:45\fP". Using the \f2clear\fP or command with no argument displays a list of all breakpoints currently set. The \f2cont\fP command continues execution.
 .LP
-.RE
 .SS
 Stepping
 .LP
-.RS 3
-.LP
 .LP
 The \f2step\fP commands advances execution to the next line whether it is in the current stack frame or a called method. The \f2next\fP command advances execution to the next line in the current stack frame.
 .LP
-.RE
 .SS
 Exceptions
 .LP
-.RS 3
-.LP
 .LP
 When an exception occurs for which there isn't a catch statement anywhere in the throwing thread's call stack, the VM normally prints an exception trace and exits. When running under \f3jdb\fP, however, control returns to \f3jdb\fP at the offending throw. You can then use \f3jdb\fP to diagnose the cause of the exception.
 .LP
 .LP
 Use the \f2catch\fP command to cause the debugged application to stop at other thrown exceptions, for example: "\f2catch java.io.FileNotFoundException\fP" or "\f2catch mypackage.BigTroubleException\fP. Any exception which is an instance of the specifield class (or of a subclass) will stop the application at the point where it is thrown.
 The \f2ignore\fP command negates the effect of a previous \f2catch\fP command.
 .LP
 .LP
 \f2NOTE: The \fP\f2ignore\fP command does not cause the debugged VM to ignore specific exceptions, only the debugger.
 .LP
-.RE
-.RE
 .SH "Command Line Options"
-.LP
 .LP
 .LP
 When you use \f3jdb\fP in place of the Java application launcher on the command line, \f3jdb\fP accepts many of the same options as the java command, including \f2\-D\fP, \f2\-classpath\fP, and \f2\-X<option>\fP.
 .LP
 .LP
 .LP
 Other options are supported for alternate mechanisms for connecting the debugger and the VM it is to debug. The Java Platform Debugger Architecture has additional
 .na
 \f2documentation\fP @
 .fi
-http://java.sun.com/javase/6/docs/technotes/guides/jpda/conninv.html on these connection alternatives.
+http://download.oracle.com/javase/7/docs/technotes/guides/jpda/conninv.html on these connection alternatives.
 .LP
 .SS
 Options Forwarded to Debuggee Process
 .LP
 .RS 3
 .RE
 .LP
 .SH "SEE ALSO"
 .LP
-.LP
 .LP
 javac(1), java(1), javah(1), javap(1), javadoc(1).
 .LP

changeset 9573	c02ff5a7c67b
parent 5865	47da38a8c0f0
child 21743	3d979da7bdf0