= Changes in AspectJ
:doctype: book
:leveloffset: +1

_© Copyright 1998-2002 Palo Alto Research Center Incorporated
2003-2008 Contributors. All rights reserved._

* xref:#_1_6_0[AspectJ 1.6.0] (released 2008-04)
* xref:#_1_5_4[AspectJ 1.5.4] (released 2007-12)
* xref:#_1_5_3[AspectJ 1.5.3] (released 2006-11)
* xref:#_1_5_2[AspectJ 1.5.2] (released 2006-06)
* xref:#_1_5_1[AspectJ 1.5.1] (released 2006-04)
* xref:#_1_5_0[AspectJ 1.5.0] (released 2005-12)
* xref:#_1_2_1[AspectJ 1.2.1] (released 2004-10)
* xref:#_1_2[AspectJ 1.2] (released 2004-05)
* xref:#_1_1_1[AspectJ 1.1.1] (released 2003-09)
* AspectJ 1.1.0 (released 2003-06-06) See xref:README-1.1.adoc#readme-1_1[release notes].
* xref:#_1_0_6[AspectJ 1.0.6] (released 2002-07-24)
* xref:#_1_0_5[AspectJ 1.0.5] (released 2002-06-27)
* xref:#_1_0_4[AspectJ 1.0.4] (released 2002-04-17)
* xref:#_1_0_3[AspectJ 1.0.3] (released 2002-02-08)
* xref:#_1_0_2[AspectJ 1.0.2] (released 2002-02-06)
* xref:#_1_0_1[AspectJ 1.0.1] (released 2001-12-18)
* xref:#_1_0_0[AspectJ 1.0.0] (released 2001-11-30)
* xref:#_1_0rc3[AspectJ 1.0rc3] (released 2001-11-14)
* xref:#_1_0rc2[AspectJ 1.0rc2] (released 2001-10-12)
* xref:#_1_0rc1[AspectJ 1.0rc1] (released 2001-10-5)
* xref:#_1_0beta1[AspectJ 1.0beta1] (released 2001-08-29)
* xref:#_1_0alpha1[AspectJ 1.0alpha1] (released 2001-08-09)
* xref:porting.adoc[Porting and Transition]

'''''

[[_1_6_0]]
= AspectJ 1.6.0

This release rebases AspectJ on the Eclipse Compiler version 785_R33X -
making it Java6 compliant.

A full list of bugs fixed and enhancements implemented can be found in
https://bugs.eclipse.org/bugs/buglist.cgi?query_format=advanced&short_desc_type=allwordssubstr&short_desc=&product=AspectJ&target_milestone=1.6.0+M1&target_milestone=1.6.0+M2&target_milestone=1.6.0+RC1&target_milestone=1.6.0&long_desc_type=allwordssubstr&long_desc=&bug_file_loc_type=allwordssubstr&bug_file_loc=&status_whiteboard_type=allwordssubstr&status_whiteboard=&keywords_type=allwords&keywords=&bug_status=RESOLVED&bug_status=VERIFIED&bug_status=CLOSED&emailtype1=substring&email1=&emailtype2=substring&email2=&bugidtype=include&bug_id=&votes=&chfieldfrom=&chfieldto=Now&chfieldvalue=&cmdtype=doit&order=Reuse+same+sort+as+last+time&field0-0-0=noop&type0-0-0=noop&value0-0-0=[Bugzilla].

[[_1_5_4]]
= AspectJ 1.5.4

This release contains around 40 bug fixes and enhancements since the
1.5.3 release.

A full list of bugs fixed and enhancements implemented can be found in
https://bugs.eclipse.org/bugs/buglist.cgi?query_format=advanced&product=AspectJ&target_milestone=1.5.4&bug_status=RESOLVED&bug_status=VERIFIED&bug_status=CLOSED[]
Bugzilla

[[_1_5_3]]
= AspectJ 1.5.3

This release contains around 80 bug fixes and enhancements since the
1.5.2 release.

A full list of bugs fixed and enhancements implemented can be found in
https://bugs.eclipse.org/bugs/buglist.cgi?query_format=advanced&product=AspectJ&target_milestone=1.5.3&bug_status=RESOLVED&bug_status=VERIFIED&bug_status=CLOSED[]
Bugzilla

[[_1_5_2]]
= AspectJ 1.5.2

This release contains around 60 bug fixes and enhancements since the
1.5.1 release.

A full list of bugs fixed and enhancements implemented can be found in
https://bugs.eclipse.org/bugs/buglist.cgi?query_format=advanced&product=AspectJ&target_milestone=1.5.2&bug_status=RESOLVED&bug_status=VERIFIED&bug_status=CLOSED[]
Bugzilla

[[_1_5_1]]
= AspectJ 1.5.1

This release contains over 70 bug fixes and enhancements since the 1.5.0
release.

A full list of bugs fixed in AspectJ 5 can be found in
https://bugs.eclipse.org/bugs/buglist.cgi?query_format=advanced&product=AspectJ&target_milestone=1.5.1&bug_status=RESOLVED&bug_status=VERIFIED&bug_status=CLOSED[]
Bugzilla

[[_1_5_0]]
= AspectJ 1.5.0

This release contains nearly 400 bug fixes and enhancements since the
1.2.1 release. Major updates to the language are documented in the
xref:../adk15notebook/adk15notebook.adoc[AspectJ 5 Developer's Notebook]. There are
also a number of enhancements to accompanying tools documented in the
xref:../devguide/index.adoc[Developer's Guide]

A full list of bugs fixed in AspectJ 5 can be found in
https://bugs.eclipse.org/bugs/buglist.cgi?query_format=advanced&short_desc_type=allwordssubstr&product=AspectJ&resolution=FIXED&chfieldfrom=2004-11-06&chfieldto=2005-12-20[bugzilla].

[[_1_2_1]]
= AspectJ 1.2.1

All known P1 and P2 bugs have been fixed in this release. The
https://bugs.eclipse.org/bugs/buglist.cgi?product=AspectJ&target_milestone=1.2.1&bug_status=RESOLVED&resolution=FIXED[full
list of fixes and enhancements] can be found on bugzilla. Some of the
more significant bug fixes and enhancements include:

* https://bugs.eclipse.org/bugs/show_bug.cgi?id=53981[53981] Any
occurence of proceed(..) within the body of around advice is treated as
the special proceed form (even if the aspect defines a method named
proceed) unless a target other than the aspect instance is specified as
the recipient of the call.
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=48990[48990]
Optimisations added for the special cases of if(true) and if(false) in
pointcut expressions.
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=69319[69319] The Eclipse
JDT compiler inside AspectJ has been upgraded to the Eclipse 3.0 release
version.
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=61572[61572] AspectJ
1.2.1 correctly detects an attempt to access instance variables of the
declaring aspect of an inter-type declared method from within the body
of that method.
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=65319[65319] Error
message now correctly produced when attempting to bind a pointcut formal
in both a this() and a target() pointcut sub-expression.
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=70619[70619] Conflicting
declare precedence statements are now handled gracefully.
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=42573[42573] Relative
paths specified in .lst files are now resolved relative to the lst file
location.
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=57666[57666] Resource
copying from jar files correctly handles duplicate manifests.
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=61768[61768] Static
inner types of an aspect can now be referenced within the body of
inter-type declared methods in that aspect.
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=62642[62642]
after-throwing advice on a static initialization join point no longer
swallows ExceptionInInitializer errors.
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=67578[67578] AspectJ
1.2.1 correctly handles privileged access to members defined in a
different package to the privileged aspect.
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=67592[67592] The
Object[] given in response to a getArgs() call on a JoinPoint object is
now a value copy.
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=68991[68991]
Initialisers of inter-type declared fields now have field-set join
points.
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=69459[69459] A static
inter-type method declaration is not allowed to hide an instance method.
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=70794[70794] An
inter-type declaration of an abstract method on a target type which is
an interface must be declared as public.
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=71372[71372] Calls can
be made to private static methods of enclosing types from the body of
around advice in an inner aspect.
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=71377[71377] Join points
are now correctly detected for calls to private methods and set/get of
private fields within the body of around advice.
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=71723[71723] A
non-privileged inter-type declared method cannot call protected methods
defined in parent classes of the target type.
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=74238[74238] Any
privileged calls made by the AspectJ runtime library are now correctly
wrapped in doPrivileged blocks, with fall-back implementations, allowing
usage in restricted environments.
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=74245[74245] Specifying
the -proceedOnError flag will now cause the compiler to attempt weaving
even in the face of errors.
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=76030[76030] Runtime
optimisations for cflow (in the case where there are no arguments bound
in the cflow pointcut) have been implemented. This can dramatically
speed-up some programs making heavy use of cflow. Thanks to the abc
compiler team for detecting this performance related bug and for
piloting the fix.
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=54421[54421] String
concatentation (using "+") is now allowed for the message associated
with a declare error or warning statement.
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=69011[69011] ajdoc now
correctly handles types in the default package.
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=36747[36747] The 1.2.1
compiler supports an additional option, -showWeaveInfo, which will
produce informational messages concerning the activity of the weaver.
For example:
+
[source, text]
....
Type 'tjp.Demo' (Demo.java:30) advised by around advice from 'tjp.GetInfo'
(GetInfo.java:26) [RuntimeTest=true]
....
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=44191[44191] AspectJ
1.2.1 improves the error messages issued in many of the infamous "can't
find type" scenarios.
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=46298[46298] The code
generated by ajc is now more easily digested by many decompilers (but
you wouldn't want to do that anyway would you?? ;) ).
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=49743[49743] Performance
optimisations in the AspectJ runtime library when using getSignature()
and toString().
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=61374[61374] AspectJ now
includes its own version of BCEL under the org.aspectj namespace which
eliminates unwanted conflicts with BCEL versions inside JDKs or on
classpaths in general.
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=68494[68494] ajdoc now
supports ".aj" files.
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=72154[72154] The AspectJ
1.2.1 compiler includes the ability to dump information about the
current state of the compiler on failure. By default this only happens
on an abort, but it can also be forced to dump on error by specifying
the property: org.aspectj.weaver.Dump.condition=error
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=37020[37020] The line
number locations for method execution and static initialization join
points now give the first line of the method declaration (rather than
the line number of the first line of code in the method body) when the
source code is compiled by ajc.
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=73369[73369] A new jar,
aspectjweaver.jar is included in the lib directory, which contains the
subset of aspectjtools.jar needed for weaving. The "aj" script is also
moved into the bin directory.

[[_1_2]]
= AspectJ 1.2

All known P1 and P2 bugs have been fixed in this release. The
https://bugs.eclipse.org/bugs/buglist.cgi?product=AspectJ&target_milestone=1.2[full
list of fixes and enhancements] can be found on bugzilla. Some of the
more significant bug fixes and enhancements include:

* https://bugs.eclipse.org/bugs/show_bug.cgi?id=46347[46347] The ajc
compiler now can read .class files from directories as well as zip files
for bytecode weaving, via the new -inpath option.
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=48080[48080] Error and
warning messages emitted as a result of a declare error or declare
warning statement now include context information that indicates the
matched join point.
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=54819[54819] Error and
warning messages coming from the weaving phase of compilation now show
source context wherever it is available, and also indicate as the source
location of the error either the class file or jar file from which the
binary source unit came.
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=36430[36430] A new
-Xreweavable option has been added which allows class files to be woven
more than once.
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=49250[49250]
SoftException now supports getCause().
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=51320[51320] AspectJ 1.2
now gives a compilation error if one of the non-statically determinable
pointcut forms is used in a declare statement.
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=53012[53012] Declaring
precedence on a class type (rather than an aspect type) is now an error
unless subtypes are included.
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=36069[36069] The source
information for inlined advice is now correct (using JSR 45).
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=34206[34206] (See also
https://bugs.eclipse.org/bugs/show_bug.cgi?id=44587[44587]). Errors
occuring during static initialisation of an aspect are now handled much
more gracefully.
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=41952[41952] A new Xlint
warning warns users specifying declaring type patterns in call pointcut
designators if the pointcut does not match at places they may expect it
to.
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=42574[42574] -extdirs
opion now recognises .zip files as well as .jar.
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=48091[48091] New option
-XlazyTjp defers creation of JoinPoint objects until just before calling
the advice body that requires them. This allows the cost of creating
JoinPoint objects to be avoided using an if() pointcut test that returns
false when the advice body is not required to be executed. Speed-ups of
10-100X are obtained via this optimisation (as compared to putting the
test inside the advice body).
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=45441[45441]
IncompatibleClassChangeError at runtime when compiling with the -1.4
option.
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=54625[54625] Incremental
compilation did not support the -outjar option, but silently failed if
it was specified. AspectJ 1.2 always performs a full build when the
-outjar option is present.
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=54965[54965] Incremental
compilation under AspectJ 1.2 is approximately twice as fast as under
AspectJ 1.1.1.
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=55134[55134] Incremental
compilation now deletes any additional class files generated during the
weave phase when the class file from whence they came is deleted.
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=54621[54621] Incremental
compilation will now detect changes (add, delete, modify) to class files
in directories on the inpath and will include them in incremental
compilation.
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=54621[54621] Incremental
compilation will now detect changes to jars on the inpath (and injars),
and trigger a full build if a jar is modified.
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=54622[54622] Incremental
compilation will now detect changes to resources on the inpath.
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=54618[54618] Incremental
compilation will now detect changes to any of the paths affecting
compilation, and triggers a full build if there has been any change
since the last build.
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=50200[50200] The
aspectjrt.jar manifest file now has the correct (upper) case.
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=49457[49457] No error
given when overloading pointcuts, unless variables are bound.
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=50776[50776] Compilation
failure when overriding an inter-type declared method with a different
throws clause.
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=51919[51919] Polymorphic
inter-type declaration fails.
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=52464[52464] Declare
warning coupled with inter-type declaration causes compiler crash.
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=41125[41125] Variable
names in the local variable table (for debugging) are now correctly
preserved in all cases.
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=43792[43792] Improved
support for non-US locales (and significantly boosted weaver performance
at the same time).
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=35636[35636] AspectJ 1.2
behaves much more gracefully when running out of memory. (It also
requires less memory than 1.1.1 did in any case).
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=42711[42711] Super-types
of parameters not recognised when calling priveleged methods.
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=43972[43972] (See also
https://bugs.eclipse.org/bugs/show_bug.cgi?id=45676[45676]). Incorrectly
adding synthetic attribute to generated methods.
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=45184[45184] External
pointcut references not resolved when a named pointcut is used by a
declare statement.
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=46750[46750] Declare
soft does not work inside a nested aspect.
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=47754[47754] No error
signalled when attempting to declare a static method on an interface
using an inter-type declaration.
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=48522[48522] Declare
soft softens all exceptions at matched join points, not just the
exception declared to be soft.
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=49295[49295] AspectJ 1.2
no longer supports inter-type constructor declarations on interfaces.
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=51929[51929] Call to a
protected super-type method within a advice body causes
java.lang.VerifyError.
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=52928[52928] Private
members introduced via an interface are incorrectly visible within
implementing classes.
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=47910[47910] An output
jar file created by AspectJ when using the -outjar option does not
contain a valid manifest file.
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=59909[59909] Thread
local storage used to manage cflow stacks when available - improves
cflow performance when working with a multi-threaded application.

[[_1_1_1]]
= AspectJ 1.1.1

All known P1 and P2 bugs have been fixed in this release. The
https://bugs.eclipse.org/bugs/buglist.cgi?product=AspectJ&target_milestone=1.1.1[full
list of bug fixes] (49 in all) can be found on bugzilla.

Some of the more significant bug fixes and enhancements in this release
include:

* https://bugs.eclipse.org/bugs/show_bug.cgi?id=40943[40943] The ajc
compiler now copies resource files from jars specified using the -injars
option. When compiling with source directories, resources are _not_
copied - mirroring the behaviour of javac so as to cause minimum
disruption when switching between ajc and javac. (To copy resources from
source directories, use the iajc Ant task sourceRootCopyFilter option.)
Thanks to Matthew Webster for contributing many of the patches for this
enhancement.
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=39626[39626] ajc was
erroneously putting aspectjtools.jar in the classpath of a compilation.
This caused problems when attempting to compile projects using different
versions of any of the classes in aspectjtools.jar. Thanks to George
Harley and Igor Hjelmstrom Vinhas Ribeiro for their assistance in
tracking this down.
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=40257[40257] Relative
paths are now supported in ".lst" files.
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=40771[40771] The Ajde
apis are no longer coupled to swing. This is of most significance to
AJDT users on the Mac OS X platform, enabling AJDT to be used with Mac
OS X.
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=41254[41254] Of interest
to those writing tools that need to interact with the structure model
for AspectJ programs: the interface to the AspectJ structure model was
significantly revised and enhanced in 1.1.1.
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=39462[39462] A compiler
exception was thrown when an abstract aspect in a library was extended
by a concrete aspect using cflow. Thanks to Takao Naguchi for an easy to
reproduce bug report.
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=39479[39479] Compiler
crashes when a constructor delegates to another constructor that uses a
switch statement. Thanks to Andy Clement for both the easy to reproduce
bug report and the patch.
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=41175[41175] Declared
exceptions were being lost on inter-type declarations made from binary
aspects in an aspect library.
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=41359[41359] Aspect
per-clauses were not inherited by sub-aspects when using binary aspect
libraries. Thanks to Chris Bozic for the easy to reproduce bug report.
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=42539[42539] The "+"
pattern was being ignored for type patterns used in throws clauses.
Thanks to Keith Sader for the easy to reproduce bug report.
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=40807[40807] If you
specify no output directory, the iajc Ant task now defaults to using the
source directory, following ajc and javac. As a result, now you can use
ajc to compile JSP's in Tomcat. Thanks to Ron Bodkin for investigating
how to integrate ajc with Tomcat.

[[_1_0_6]]
= AspectJ 1.0.6

This release contains mainly bug fixes for ajde and ajdoc.

[[_1_0_6compiler]]
== Compiler

We fixed a bug with switch statements, thanks largely to Jason Rimmer's
diligence in helping us isolate the problem. Also, to help Log4J parse
stack traces, we changed class file symbolic line references to use []
instead of () for the virtual start lines of each file.

[[_1_0_6ajde]]
== AJDE

*AJDE Framework, AJBrowser, and AJDE for Forte/NetBeans*

The memory use of the structure model has been streamlined in order to
reduce footprint when working with large systems.  Error tolerance has
also been improved for dealing with a structure model that is out of
synch with resources on disk.

=== AJDE for JBuilder

JBuilder 7 is now supported.  All known bugs have been fixed including:

* https://aspectj.org/bugs/resolved?id=787[787] AJDE for JBuilder throws
exception given non-existent file
* https://aspectj.org/bugs/resolved?id=788[788] Label too small in error
message
* https://aspectj.org/bugs/resolved?id=789[789] Index-out-of-bounds
exception in JBuilder AJDE
* https://aspectj.org/bugs/resolved?id=792[792] Required libraries
disappear from JBuilder 6
* https://aspectj.org/bugs/resolved?id=795[795] Unable to compile open
tools
* https://aspectj.org/bugs/resolved?id=802[802] AJDE loses current
(cursor) position in file when switching files

In addition, thanks to user feedback that indicated trouble building
JBuilder OpenTools with AJDE/JBuilder, the OpenTool is now being built
with itself.

[[_1_0_6ajdoc]]
== Ajdoc

* Fixed https://aspectj.org/bugs/resolved?id=790[790] aspect code
comments suppressed by fix to bug 710
* Known problems: https://aspectj.org/bugs/ajdoc

'''''

[[_1_0_5]]
= AspectJ 1.0.5

This release includes significant improvements to AspectJ Development
Environment (AJDE) support. The entire user interface has been revised
and streamlined. The AJDE features are more tightly integrated into
JBuilder and NetBeans/Forte support. JBuilder support now includes
graphical configuration file editing and an integrated AspectJ Browser
tool.

* xref:#_1_0_5compiler[Compiler]
* xref:#_1_0_5ajde[AJDE]
* xref:#_1_0_5ajdoc[Ajdoc]
* xref:#_1_0_5anttasks[Ant tasks]

[[_1_0_5compiler]]
== Compiler

This was another compiler release primarily concerned with fixing corner
cases in the language implementation. Our handling of nested classes,
the assert statement, and cflow were the principal offenders this time.
Thanks to Nicholas Alex Leidenfrost and Patrick Chan for their clear and
concise bug reports on some of these issues.

[[_1_0_5ajde]]
== AJDE

This release includes significant improvements to AspectJ Development
Environment (AJDE) support. All known bugs have been fixed, and the core
framework quality has been significantly increased thanks to the adoption of a
unit test suite. The following changes apply to all of the AJDE NetBeans/Forte,
JBuilder, and the AspectJ Browser support. NetBeans/Forte and JBuilder-specific
changes are listed below.

* The entire user interface has been revised and streamlined.
* The structure view and browser have a new UI, and offer both a
file-based and global structure views. All views expose node ordering,
node filtering, and association filtering functionality. The global
views expose a package tree as well as the global inheritance and
crosscutting structure.
* Structure view navigation now has a history exposed by back/forward.
* The is a new build configuration management UI.
* The compiler preferences UI now includes access to all build options.
* Error messages have been improved, and the structure views include
annotations of nodes with errors and warnings.

=== AJDE for JBuilder

Integration into the JBuilder IDE is more streamlined. In addition:

* The AspectJ Browser is included as a tool that replaces JBuilder's
"Project View" and can be used to navigate the global structure of your
system (including the crosscutting and inheritance structure).
* Inline structure annotations in the editor's gutter can now expose all
of the structure presented in the structure view, and can be used to
navigate in a similar way. Note that there are preferences for toggling
which of these appear.
* Building is better integrated and the JBuilder build toolbar is
removed when AJDE is enabled.
* Build configurations can be selected from the build button's menu.
* Execution is better integrated: instead of a separate "run" button
JBuilder's run and debug can be used. Note that for new projects you
will need to use the "AspectJ Runtime" library, which will be added to
your preferences automatically.
* A new graphical build configuration editor can be used by
double-clicking ".lst" files that have been added to the project.
* Error messages now match JBuilder's look-and-feel and behavior.
Seeking to column numbers now works in addition to line numbers.

=== AJDE for Forte/NetBeans

Integration into the NetBeans IDE is more streamlined. In addition:

* NetBeans 3.3.2 and SunONE Studio 4 are supported.
* Multiple filesystems are supported.
* Default project build configurations (all project files) are now
supported.
* Build configurations can be selected in the tool bar.
* Regular NetBeans execution and debugging is supported. Note that you
have to add netbeans/lib/ext/aspectjrt.jar file to your project
configuration.
* Class files are generated beside source files (NetBeans/javac
default). There is currently no way to specify a target directory.

=== AJBrowser

* The browser now supports main class execution. Set the main class in
the options dialog, and make sure that both the Java executable is on
your path, and the class that you expect to execute on your classpath.
* The error messages UI has been improved.

[[_1_0_5ajdoc]]
== Ajdoc

Bug fixes:

* https://aspectj.org/bugs/resolved?id=710[710 - compiler-generated
constructor shown with class comment]
* https://aspectj.org/bugs/resolved?id=712[712 - comments lost in aspect
docs for methods or constructors declared on other types.]
* https://aspectj.org/bugs/resolved?id=719[719 - poor support for @link,
@see tags]
* https://aspectj.org/bugs/resolved?id=742[742 - crash with @see tag]
* https://aspectj.org/bugs/resolved?id=751[751 - error loading doclet
resource]

[[_1_0_5anttasks]]
== Ant tasks

Bug fixes:

* https://aspectj.org/bugs/resolved?id=730[730 - document all supported
ajc flags]

'''''

[[_1_0_4]]
= AspectJ 1.0.4

* xref:#_1_0_4compiler[Compiler]
* xref:#_1_0_4ajde[AJDE]
* xref:#_1_0_4ajdoc[Ajdoc]
* xref:#_1_0_4taskdefs[Ant taskdefs]
* xref:#_1_0_4doc[Documentation]

[[_1_0_4compiler]]
== Compiler

* Over a dozen people independently reported a bug in error handling for
the wrong number number of arguments to `proceed`. This has been turned
into a nice error message. A number of other bug reports related to
around advice and proceed have also been fixed, including the ability to
change the bindings for `this` and `target` using proceed in around
advice.
* David Walend gets the _black thumb_ award for the most bug reports
submitted by a new user. His bug report on the behavior of after
returning advice led to some valuable clarifications of this part of the
language spec.
* A number of places where ajc didn't fully comply with the Java
Language Spec have been fixed in this release. Thanks to Neal Gafter for
reporting many of these.

=== Incompatible changes

Two potentially surprising incompatible changes have been made to ajc in
order to bring the compiler into compliance with the 1.0 language
design. These changes will be signalled by clear warning or error
messages at compile-time and will not cause any run-time surprises. We
expect most users to never notice these changes.

* The obsolete class `org.aspectj.lang.MultipleAspectsBoundException`
has been removed from aspectjrt.jar. This class had not been used since
AspectJ-0.8 and should have been removed prior to the 1.0 release. It is
not documented as part of the 1.0 language spec. This change will cause
a compile-time type not found error in any code that refers to this
exception.
* The compiler was not correctly implementing the AspectJ-1.0 language
design for some uses of after returning advice. This compiler behavior
was fixed, and advice whose behavior might be changed by this bug fix
will be highlighted with a compiler warning. More information about some
of these changes can be found in the xref:porting.adoc#pre-1_0_4[porting
notes].

[[_1_0_4ajde]]
== AJDE

This is the first release of AJDE support with significant external
contribution. A big thanks goes out to Phil Sager for porting the AJDE
for Forte/NetBeans support to NetBeans 3.3.1 and improving the
integration into NetBeans.

=== AJDE for JBuilder

* Updates
** This is a bug fix release only.

=== AJDE for Forte/NetBeans

* Updates
** NetBeans 3.3.1 is now supported in addition to NetBeans 3.2 and Forte
CE 3.
** Native NetBeans main class execution can now be used. After doing a
"Compile with AJC" browse to the main class in the "Filesystems"
Explorer, right-click the class and select "Execute".
** The debugger can now be used if the project main class is set
("Project" menu -> "Set Project Main Class...").
** Numerous bugs have been fixed.
* Known limitations
** Breakpoint setting does not work in the debugger.
** In the "Filesystems" Explorer red Xs appear on files with AspectJ
source code. The "AspectJ" Explorer understands the structure of AspectJ
projects and should be used for navigating structure instead.

=== AJDE for Emacs

* This is a bug fix release only.

[[_1_0_4ajdoc]]
== Ajdoc

Ajdoc now runs under J2SE 1.4, but still requires the tools.jar from
J2SE 1.3 be on the classpath.

[[_1_0_4taskdefs]]
== Ant tasks

* Repackaged to fit into the AspectJ product directory - e.g.,
`aspectj-ant.jar` moved to `lib` as expected by `examples/build.xml`.
* Fixed bugs, esp. https://aspectj.org/bugs/resolved?id=682[682]: Throw
BuildException if failonerror and ajdoc detects misconfiguration.

[[_1_0_4doc]]
== Documentation

Added a 1-page quick reference guide. Improved javadoc documentation for
the org.aspectj.lang package.

'''''

[[_1_0_3]]
= AspectJ 1.0.3

* xref:#_1_0_3compiler[Compiler]
* xref:#_1_0_3taskdefs[Ant taskdefs]

[[_1_0_3compiler]]
== Compiler

This release fixes a single significant bug in 1.0.2 where ajc could
generate unreachable code in `-usejavac` or `-preprocess` mode. This
would happen when around advice was placed on void methods whose body
consisted solely of a `while (true) {}` loop. We now properly handle the
flow-analysis for this case and generate code that is acceptable to
javac. Thanks to Rich Price for reporting this bug.

[[_1_0_3taskdefs]]
== Ant taskdefs

Added support to the Ajc taskdef for the -source 1.4 and -X options
generally.

'''''

[[_1_0_2]]
= AspectJ 1.0.2

This release is mainly about keeping up with the Joneses. To keep up
with SUN's release candidate for J2SE1.4, we now officially support the
new 1.4 assertions and running on the 1.4 VM. In honor of the public
review of JSR-45 Debugging Support for Other Languages we implement this
spec for AspectJ. We support Borland's recent release of JBuilder 6, and
since some of our users are starting to work on Mac OSX, AJDE now works
nicely on this platform. We also fixed almost all of the bugs you
reported in 1.0.1.

* xref:#_1_0_2compiler[Compiler]
* xref:#_1_0_2ajde[AJDE]
* xref:#_1_0_2ajdb[AJDB]

[[_1_0_2compiler]]
== Compiler

* Official support for `-source 1.4` option to compile new
https://java.sun.com/j2se/1.4/docs/guide/lang/assert.html[1.4
assertions]. This makes ajc completely compatible with j2se-1.4.
* Implementation of https://jcp.org/jsr/detail/45.jsp[JSR-45 Debugging
Support for Other Languages] so that debuggers which correctly implement
this specification will be able to accurately debug any AspectJ program
at a source code level. We are not currently aware of any debuggers that
implement this so far, but expect that as j2se-1.4 becomes widely
available this will change.
* As proposed by Arno Schmidmeier and seconded by Nick Lesiecki, we now
have an experimental `-Xlint` option that will provide warnings when
type patterns used in pcds have no bindings. We are very interested in
feedback on the usefulness and suggested improvements for this feature.
* Several significant bugs in the implementation of around advice have
been fixed. These include issues with
https://aspectj.org/jitterbug/aspectj-bugs/resolved?id=632[dynamic
tests], with
https://aspectj.org/jitterbug/aspectj-bugs/resolved?id=620[complicated
local types in an around body], and with
https://aspectj.org/jitterbug/aspectj-bugs/resolved?id=636[capturing
proceed in a closure].
* All but two
(https://aspectj.org/jitterbug/aspectj-bugs/compiler?id=626[1],
https://aspectj.org/jitterbug/aspectj-bugs/compiler?id=645[2]) verified
bugs in 1.0.1 have been fixed. The two outstanding bugs have relatively
easy work-arounds. Thanks as usual to everyone who submitted a bug
report.
* We no longer use the `SYNTHETIC` attribute to label declarations added
by the aspectj compiler. We were using this attribute in compliance with
https://java.sun.com/docs/books/vmspec/2nd-edition/html/ClassFile.doc.html#80128[the
JVM Specification]; however, we've found that many tools expect this
attribute to only be used for the narrow purpose of implementing Java's
inner classes and that using it for other synthetic members can confuse
them. This led to problems both
https://aspectj.org/jitterbug/aspectj-bugs/resolved?id=649[with javap]
and https://aspectj.org/jitterbug/aspectj-bugs/resolved?id=646[with
javac].
* Changes required adding runtime classes, so please compile and run
using the latest `aspectjrt.jar`

[[_1_0_2ajde]]
== AJDE

This is a bug fix release only.

* Thanks to Dave Yost and Matt Drance for submitting the AJDE patches
for Mac OSX (context popup menus and keyboard shortcuts did not work).
* Bugs in history navigation (back-forward buttons in the structure
view) have been fixed.
* "Declares" are now handled properly in the structure view.
* Other GUI and usability improvements have been made the AspectJ
Browser and core framework.

=== AJDE for JBuilder

* Support has been extended to JBuilder 6, and support for Enterprise
version features has been improved.
* Fixed bug causing inline source code annotations in the editor pane to
not be updated after a recompile.
* Keyboard shortcuts were fixed to work with Mac OSX.

=== AJDE for Forte

* Keyboard shortcuts were fixed to work with Mac OSX.

[[_1_0_2ajdb]]
=== AJDB

Some minor bug fixes, but this is still early-access software. Please
try using another JPDA-compliant debugger. If it uses JDI correctly,
then it should navigate to line numbers when the classes are run under
J2SE1.4, based on the new JSR-45 debugging support described above. We
would appreciate any reports of success or failure.

'''''

[[_1_0_1]]
= AspectJ 1.0.1

* xref:#_1_0_1compiler[Compiler]
* xref:#_1_0_1ajde[AJDE]
* xref:#_1_0_1ajdb[AJDB]

[[_1_0_1compiler]]
== Compiler

This release fixes a significant performance issue in the compiler,
reported by Rich Price, that could lead to extremely long compiles in
systems with many aspects and classes. Several other small bugs related
to reporting compilation errors have also been fixed, see
https://aspectj.org/jitterbug/aspectj-bugs/resolved?id=610[this bug
report] for an example.

A new experimental flag has been added, `-XaddSafePrefix`, that will
cause the prefix `aspectj$` to be inserted in front of all methods
generated by ajc. This mode should be helpful when using aspectj with
tools that do reflection based on method names, such as EJB tools.
Thanks to Vincent Massol for pointing out the importance of this. It is
expected that this prefix will either become the default compiler
behavior in the future or a non-experimental flag will replace it.

[[_1_0_1ajde]]
== AJDE

Minor bug fixes, including: AJDE for JBuilder failed to preserve
application parameters from project settings when executing the
application.

Source builds were cleaned up for JBuilder and Forte sources.

[[_1_0_1ajdb]]
== AJDB

Two bugs were reported and have been fixed in this release. (Note that
ajdb is still considered early-access software.)

* bug 611: NullPointerException dumping non-primitive values
* bug 617: -X and -D options not passed to debug VM correctly

[[_1_0_0]]
= AspectJ 1.0.0

* xref:#_1_0_0language[Language]
* xref:#_1_0_0compiler[Compiler]
* xref:#_1_0_0ajde[AJDE]
* xref:#_1_0_0ajdoc[AJDoc]
* xref:#_1_0_0taskdefs[Ant taskdefs]

[[_1_0_0language]]
== Language

There were no language changes for this release.

[[_1_0_0compiler]]
== Compiler

Several minor bugs primarily in error handling were reported and have
been fixed in this release. The two most serious bugs are described
below:

* Niall Smart and Stephan Schmidt reported related bugs (variants of
which are also produced by other compilers) that caused verify errors
when dealing with nested try-finally and synchronized statements. These
are now fixed. More details are available
https://aspectj.org/jitterbug/aspectj-bugs/resolved?id=601[here] and
https://aspectj.org/jitterbug/aspectj-bugs/resolved?id=595[here]
* Jan Hannemann submitted a
https://aspectj.org/jitterbug/aspectj-bugs/resolved?id=600[succint and
clear bug report] for a difficult intermittant bug. The bug led to the
compiler sometimes generating illegal code when introduced methods on a
class overrode introduced methods on an interface implemented by that
class. This is now fixed.

[[_1_0_0ajde]]
== AJDE

Numerous user interface refinements were made to the browser and core
AJDE functionality. Error handling and reporting has been improved. All
of the AJDE tools now support the ".aj" file extension.

=== AJDE for JBuilder

* The AspectJ Browser now uses JBuilder's icons and distinguishes nodes
by visibility.
* Project-setting VM parameters are now supported by the "AJDE Run"
button.

=== AJDE for Forte

* The AspectJ Browser now uses Forte's icons and distinguishes nodes by
visibility

=== AJBrowser

* Documentation for the browser is now available at
https://aspectj.org/docs

=== Emacs Support: aspectj-mode and AJDEE

* Improved updating of annotations during editing.
* Pop-up jump menu now placed (with mouse pointer) near cursor.
* [AJDEE only] Improved filtering of legal code completions.

[[_1_0_0ajdoc]]
== AJDoc

* Runs only in J2SE 1.3 - not 1.2 or 1.4. You can document 1.x-reliant
programs by using the options to compile using 1.x libraries.
* Disabled some non-functioning options, documented as `unsupported` in
the syntax message.

[[_1_0_0taskdefs]]
== Ant taskdefs

* Fork is not supported in the AJDoc taskdef

[[_1_0rc3]]
= AspectJ 1.0rc3

[[_1_0rc3language]]
== Language

There have been several minor clarifications/changes to the language.

* Thanks to Robin Green for suggesting that we could relax the rules for
inheriting multiple concrete members in order to allow those unambiguous
cases where one member has already overridden the other.
https://aspectj.org/pipermail/users/2001/001289.html[More details...]
* Ron Bodkin encouraged us to examine the details of privileged aspects
more closely. This led to several small improvements and clarifications
to this language feature.
https://aspectj.org/pipermail/users/2001/001258.html[More details...]

[[_1_0rc3compiler]]
== Compiler

This release saw several changes to the compiler in order to work-around
known bugs in different JVMs, or to otherwise mimic the behavior of
javac rather than necessarily following the Java Language Specification.

* Hanson Char reported a bug where ajc's correctly generated bytecodes
for some references to interface fields result in verify errors on
certain JVMs. While this is a known bug in those JVMs, we've modified
ajc to be bug compatible with all the other Java compilers out there to
work-around this JVM bug.
https://aspectj.org/jitterbug/aspectj-bugs/resolved?id=551[More
details...]
* Frank Hunleth discovered a similar bug where ajc's correct bytecodes
could lead to essentially random method dispath due to a bad bug in the
1.3.0 JVM from Sun. Even though this bug was fixed in the 1.3.1 and
1.2.2 JVMs, we have introduced the appropriate work-around in ajc's code
generation.
https://aspectj.org/jitterbug/aspectj-bugs/resolved?id=580[More
details...]
* Thomas Haug (as well as several other members of his group) reported a
problem with name binding where ajc was behaving differently than javac.
This problem was resolved to come from a class created by an obfuscator
that conflicted with his package names. The JLS doesn't clearly specify
which of these two behaviors is correct. Nevertheless, ajc has been
changed to treat packages more like javac does in order to minimize this
sort of problem in the future.
https://aspectj.org/jitterbug/aspectj-bugs/resolved?id=574[More
details...]
* Several "real" bugs in ajc were also reported and fixed. Toby Allsopp
gets credit for reporting two of them. The most interesting of these
bugs to me was his report that we just didn't support qualified
anonymous inner constructors. This is a part of the Java language that
ajc has never supported over its almost 3 year history. We'd just
noticed this ourselves when running the jacks compiler test suite from
the jikes group, and had added the feature days before getting our first
bug report for it not being there.

[[_1_0rc3ajde]]
== AJDE

* The structure view has been improved.
* Multiple user-configurable views are supported.
* Structure tree filtering and ordering has been added.
* A split tree mode has been added to permit the navigation of multiple
views on the same structure.
* The view can also be toggled between a file-based and a system-based
mode which determines whether the root of the structure tree is the
current file or the project root.
* The signatures of tree nodes have been improved and several new node
associations are now navigable.
* A depth slider for controlling tree-expansion has been added.

=== AJDE for JBuilder

* Changes:
* Inline annotations support have been improved and made consistent with
the structure tree (annotations only show up for intra-declaration
structure).
* The current structure view persists across IDE launches.
* An enabled AJDE no longer slows down JBuilder shutdown.

=== AJDE for Forte

* Execution remembers main class.
* The bug causing an error during a "Mode" and "Explorer" switch has
been fixed.

=== AJBrowser

* AJBrowser is currently an undocumented demonstration application. To
use it type: ajbrowser <lst file1> <lst file2> ...
* Multiple source locations can be shown by selecting multiple nodes and
right-clicking to select the "Display Sources" command.

=== Emacs Support: aspectj-mode and AJDEE

* Numerous jump-menu improvements, including operation of pop-ups.
* For AJDEE, compatibility with JDEE 2.2.9beta4. Also, fixes in
completion, ajdoc launch, and speedbar.

[[_1_0rc3ajdoc]]
== AJDoc

Some of the more obvious NullPointerException bugs in Ajdoc were fixed,
but Ajdoc does not implement all the functionality of Javadoc and has
some bugs:

* Split indexes do not work correctly
* Inner classes are not listed in indexes
* Synthetic methods are documented
* There is no package frame even when packages are specified on the
command line
* -group option is not implemented
* -use targets are not all calculated correctly
* Exception information may not be printed for the @throws tag
* Verbose output should go to stderr, not stdout
* Extra links are generated (should be unlinked text)

Further, Ajdoc has not been testing on variants of the J2SE (it uses
javadoc classes).

[[_1_0rc3taskdefs]]
== Ant taskdefs

The Ajc taskdef was updated to support the new compiler options and the
.aj extension, and some NullPointerException bugs were fixed (thanks to
Vincent Massol for a bug report listing the line number of the fix). The
AJDoc cannot be run repeatedly in a single Ant run, and has trouble
loading the doclet unless the libraries are installed in
$\{ant.home}/lib.

'''''

[[_1_0rc2]]
= AspectJ 1.0rc2

* xref:#_1_0rc2language[Language]
* xref:#_1_0rc2compiler[Compiler]
* xref:#_1_0rc2ajde[AJDE]

[[_1_0rc2language]]
== Language

There are no language changes in this release. This is a bug fix release
only.

[[_1_0rc2compiler]]
== Compiler

A bug in handling inner type names that conflict with enclosing type
names was fixed. Many error messages were improved.

[[_1_0rc2ajde]]
== AJDE

* This is a bug fix release only.

=== AJDE for JBuilder

* Changes:
** Fixed bug causing the output path to be ignored and .class files to
be generated into the JBuilder install's "bin" directory.
** Fixed bugs in Browser listener causing NullPointerExceptions to be
thrown if no node editor was present.
** Fixed bug permitting "-bcg" option to be passed to the compiler.
** Fixed bug preventing ajc from compiling all of the project source
files when automatic package discovery was on (JBuilder Proffessional
and Enterprise editions).
** If the "-preprocess" flag is used resulting source files will be
placed in the project's "Working directory".
* Limitations:
** "Automatic package discovery" mode is not supported in this release.
** The debugger has not seen much use and it's stability and performance
is limited.

=== AJDE for Forte

* Changes:
** Moved the "AspectJ" menu into the "Tools" menu in order to make it
less intrusive.
** Added a "ctrl-alt-shift-F9" keyboard compile shortcut.
* Limitations:
** Known bug: "Mode" switching is not supported in this version--you
must do all of your AspectJ work in the "Editing" mode. If you switch
modes the IDE has to be restarted for the AspectJ window to show again.
Switching to a different tab in the ProjectExplorer has the same effect.
** The debugger has not seen much use and it's stability and performance
is limited.

=== AJBrowser

* Changes:
** ...
* Limitations:
** AJBrowser is currently an undocumented demonstration application. To
use it type:
+
[source, text]
....
ajbrowser <lst file1> <lst file2> ...
....

=== Emacs Support: aspectj-mode and AJDEE

This release now properly displays annotations for call sites and
introductions. Robustness has been improved in several dimensions,
including performance at startup. The compile menu now recomputes
properly when changing directories.

'''''

[[_1_0rc1]]
= AspectJ 1.0rc1

* xref:#_1_0rc1language[Language]
* xref:#_1_0rc1compiler[Compiler]
* xref:#_1_0rc1ajde[AJDE]

[[_1_0rc1language]]
== Language

Some of the details of the specification for perthis and pertarget have
changed. These changes make these language constructs implementable on
current JVMs without memory leaks (this wasn't true of the previous
version). Most people will probably not notice these changes, but the
correct semantics are described in link:progguide/semantics.html[the
semantics section of the programming guide].

In a related change, aspects are not allowed to implement either the
`java.io.Serializable` or the `java.lang.Cloneable` interface. It is
unclear what the correct behavior of a system should be when an aspect
is serialized or cloned, and rather than make an arbitrary choice right
now we've chosen to leave the most room to design them right in a future
release.

[[_1_0rc1compiler]]
== Compiler

ajc now directly generates .class files without using javac as a
back-end. This should result in improved compiler performance, better
error messages and better stack-traces and debugging info in those
.class files. -preprocess mode is still available for those who want to
generate legal Java source code and a new -usejavac mode is available if
you have a requirement to continue to use javac as a back-end.

ajc now officially supports source files with the .aj extension. We plan
to extend this support to the rest of our tools as time permits.

This release of ajc includes support for the "-source 1.4" option that
enables the new 'assert' keyword in jdk1.4. This option only works
correctly when compiling against the jdk1.4 libraries. In addition, this
release of ajc will run under SUN's jdk1.4beta2. However, we still
strongly recommend that most users use the non-beta jdk1.3.

[[_1_0rc1ajde]]
== AJDE

* The structure view can now be configured (using the "Options" dialog)
to display different kinds of associations between program elements that
appear in the tree.
* Structure view history navigation has been added.
* When navigating links the structure view will stay synchronized with
the editor.

=== AJDE for JBuilder

* Changes:
** Inline structural navigation annotations appear in the gutter of the
editor and can be used to navigate associations such as advice and
introduction.
* Limitations:
** "Automatic package discovery" mode is not supported in this release.
** The debugger has not seen much use and it's stability and performance
is limited.

=== AJDE for Forte

* Changes:
** Support for Forte 3 and Netbeans 3.2 has been added.
** The module is now installed by default on the first use without
having to go to the IDE options to enable it.
* Limitations:
** Known bug: "Mode" switching is not supported in this version--you
must do all of your AspectJ work in the "Editing" mode. If you switch
modes the IDE has to be restarted for the AspectJ window to show again.
Switching to a different tab in the ProjectExplorer has the same effect.
** The debugger has not seen much use and it's stability and performance
is limited.

=== AJBrowser

* Changes:
** Build configuration file editor added.
* Limitations:
** AJBrowser is currently an undocumented demonstration application. To
use it type:
+
[source, text]
....
ajbrowser <lst file1> <lst file2> ...
....

=== Aspectj-mode and AJDEE: AspectJ support in Emacs

This release of AspectJ support for Emacs includes corrections to the
documentation and the appearance of annotations and jumps in the editing
view. Also, advice are now shown on non-declarations, when appropriate,
such as call advice. The internal event model has been revised to reduce
computational overhead.

'''''

[[_1_0beta1]]
= AspectJ 1.0beta1

* xref:#_1_0beta1language[Language]
* xref:#_1_0beta1compiler[Compiler]
* xref:#_1_0beta1ajbrowser[AJBrowser]
* xref:#_1_0beta1ajde[AJDE]

[[_1_0beta1language]]
== Language

There is one language change since 1.0alpha1. The static modifier is no
longer needed or allowed on pointcut declarations. Name binding for
pointcut declarations works like class methods now. Thanks to Robin
Green for encouraging us to look at this one last time.

The current implementation of perthis/pertarget has the possibility of
memory leaks (thanks to Arno Schmidmeier for pointing this out). The
design of this part of the language will almost certainly see some
changes in the next release to address issues of implementability on the
JVM as well as related issues.

[[_1_0beta1compiler]]
== Compiler

The ajc compiler should now catch all errors in source code and you
should no longer see errors coming from files in 'ajworkingdir'. Please
report any errors in 'ajworkingdir' as bugs.

All reported bugs in 1.0alpha1 have been fixed. Thanks to everyone for
your bug reports. Most notably, the 'if' pcd that was added in 1.0alpha1
should work correctly in this release. Thanks to Morgan Deters for a
very thorough bug report on this broken feature days after the 1.0alpha1
release.

[[_1_0beta1ajbrowser]]
== AJBrowser

* Support for executing classes has been added.
* .lst can now be passed as arguments on the command line.
* Compiler options can be set.
* Know limitations:
** In order to execute classes they must be available on the classpath
that the browser is launched with.

[[_1_0beta1ajde]]
== AJDE

* The performance and UI of the structure tree has been improved.
* Compilation now runs in a separate thread and a progress monitor is
updated during the compile.
* The structure view now persists across IDE launches.
* Limitations:
** If an error occurs in the javac pass it will not display properly in
the error messages pane. To view the error you have check the output of
the console that the IDE was launched from. No more errors should be
passed to javac, so please report this behavior and the corresponding
error message as a bug.

=== AJDE for JBuilder

* Known bugs have been fixed.
* Classpath separator character is no longer hardcoded.
* Keyboard shortcuts for compilation (ctrl-F11) and execution (ctrl-F12)
have been added.
* Limitations:
** The debugger has not seen much use and it's stability and performance
is limited.

=== AJDE for Forte

* Known bugs have been fixed.
* Limitations:
** "Mode" switching is not supported in this version--you must do all of
your AspectJ work in the "Editing" mode. If you switch modes the IDE has
to be restarted for the AspectJ window to show again.
** There are no keyboard compile/execute shortcuts.
** The debugger has not seen much use and it's stability and performance
is limited.

=== Aspectj-mode and AJDEE: AspectJ support in Emacs

AspectJ Development Environment for Emacs has been split into two
pieces, aspectj-mode (an extension of java-mode), and AJDEE (an
extension of JDE). Additionally, a switch, -emacssym, has been added to
ajc that generates AspectJ declarations information directly, thus
beanshell is no longer required for use of these modes.

'''''

[[_1_0alpha1]]
= AspectJ 1.0alpha1

This is the first alpha release of the 1.0 language and tools. There
have been many changes in the language, and many improvements to the
tools. We wish to thank our users for putting up with the high
volatility of AspectJ in the push to 1.0.

* xref:#_1_0alpha1language[Language]
* xref:#_1_0alpha1compiler[Compiler]
* xref:#_1_0alpha1documentation[Documentation]
* xref:#_1_0alpha1ajdoc[AJDoc]
* xref:#_1_0alpha1ant[Ant]
* xref:#_1_0alpha1ajbrowser[AJBrowser]
* xref:#_1_0alpha1ajde[AJDE]

[[_1_0alpha1language]]
== Language

There have been many changes to make the 1.0 language both simpler and
more powerful. User feedback has driven most of these design changes.
Each email we've received either making a suggestion or just asking a
question about a confusing part of the language has played a part in
shaping this design. We'd like to thank all of our users for their
contributions.

While we don't have room to thank all of our users by name, we'd like to
specifically mention a few people for their high-quality sustained
contributions to the users@aspectj.org mailing list as well as through
their feature requests and bug reports. Robin Green (who'll be very
happy to see `declare error`), Stefan Hanenberg (who should appreciate
the '+' wildcard in type patterns), and Rich Price (who suggested final
pointcuts, more flexible dominates, and many other improvements).

Note that entries into the xref:porting.adoc[porting notes] for this
release are linked from the various language changes.

=== Pointcuts

Perhaps the least interesting -- but most pervasive -- change is that
the names of the single-kinded pointcut designators (the ones that pick
out only one kind of join point)

____
calls executions gets sets handlers initializations
staticinitializations
____

have been xref:porting.adoc#_1_0a1-plural-to-singular[changed] to be
singular rather than plural nouns

____
call execution get set handler initialization staticinitialization
____

Although a side benefit is that the names are one character shorter, the
real benefit is that their combination with the `&&` and `||` operators
now reads much more naturally. No longer does "and" mean "or" and "or"
mean "and".

You'll notice that `receptions` doesn't appear on the table as being
shortened to `reception`. That's because call and reception join points
have been merged, and the `receptions` pointcut declaration has been
xref:porting.adoc#_1_0a1-remove-receptions[eliminated]. Now, `call` join
points describe the action of making a call, including both the caller
and callee. Eliminating reception join points makes AspectJ much simpler
to understand (reception join points were a commonly misunderstood
feature) without giving up expressive power.

We have xref:porting.adoc#_1_0a1-fixing-state-access[changed the
mechanism for accessing state] at join points, which has the benefit of
making our treatment of signatures
xref:porting.adoc#_1_0a1-no-subs-in-sigs[cleaner] and easier to read. As
a part of this, the `instanceof` pointcut designator has now been
xref:porting.adoc#_1_0a1-fixing-instanceof[split into two different
pointcut designators], `this` and `target`, corresponding to a join
point's currently executing object and target object, respectively.

The new `args` pointcut adds expressive power to the language by
allowing you to capture join points based on the actual type of an
argument, rather than the declared type of its formal. So even though
the `HashSet.removeAll` method takes a `Collection` as an argument, you
can write advice that only runs when it is actually passed a `HashSet`
object.

AspectJ's notion of object construction and initialization, a
complicated process in Java, has been clarified. This affects some uses
of the xref:porting.adoc#_1_0a1-initializations[initializations pointcut]
and xref:porting.adoc#_1_0a1-constructor-calls[constructor calls]
pointcut.

The little-used pointcuts xref:porting.adoc#_1_0a1-hasaspect[`hasaspect`]
and xref:porting.adoc#_1_0a1-withinall[`withinall`] have been removed.

The `returns` keyword is xref:porting.adoc#_1_0a1-user-defined-returns[no
longer necessary] for user-defined pointcuts.

Pointcuts may now be declared `static`, and
xref:porting.adoc#_1_0a1-static-pointcuts[only static pointcuts] may be
declared in classes and referred to with qualified references (such as
`MyAspect.move()`).

Non-abstract pointcuts may now be declared `final`.

We have finally added an extremely general pointcut,
`if(BooleanExpression)`, that picks out join points programatically.

=== Type patterns

Our treatment of xref:porting.adoc#_1_0a1-new-wildcards[* and ..] in type
patterns is cleaner.

Type patterns now have the ability to include array types, and there is
a new wildcard, +, to pick out all subtypes of a given type. Previously,
the subtypes operator was only allowed in introduction, and was
xref:porting.adoc#_1_0a1-subtypes-to-plus[spelled differently].

=== Advice

Around advice is treated much more like a method, with a
xref:porting.adoc#_1_0a1-around-returns[return value] and an optional
xref:porting.adoc#_1_0a1-around-throws[throws clause].

The advice precedence rules have been
xref:porting.adoc#_1_0a1-advice-precedence[changed]. Now, for example, a
piece of after advice that appears lexically later than another piece of
after advice will run later, as well. Previously, the relationship was
the other way around, which caused no small amount of confusion.

After returning advice has lost a
xref:porting.adoc#_1_0a1-after-returning[useless set of parentheses] when
not using the return value.

The `thisStaticJoinPoint` reflective object has been
xref:porting.adoc#_1_0a1-this-static-join-point[renamed], and the
`thisJoinPoint` object hierarchy has been
xref:porting.adoc#_1_0a1-this-join-point[simplified].

=== Introduction and static crosscutting

On the static side of the language, introduction hasn't changed, but
there is now a new keyword, `declare`, that is used to declare various
statically-crosscutting properties. One of these properties is
subtyping, so we've
xref:porting.adoc#_1_0a1-plus-implements-extends[gotten rid of] the ugly
keywords `+implements` and `+extends`.

We have provided two new forms, `declare error` and `declare warning`,
for the often-asked-for property of compile-time error detection based
on crosscutting properties.

AspectJ's interaction with checked exceptions is now firmly on the side
of static crosscutting, since Java treats such exceptions at
compile-time. A new form, `declare soft`, can be used to "soften"
checked exceptions into an unchecked form. This may affect some uses of
xref:porting.adoc#_1_0a1-now-use-soft[around advice] that previously
mucked with the exception checking system.

=== Aspects

The "of each" modifiers have been
xref:porting.adoc#_1_0a1-aspects[renamed]. Apart from the spelling, the
main interesting difference is the splitting up of `of eachobject` into
two different modifiers, parallel with the split of `instanceof` into
`this` and `target`.

The `dominates` keyword now takes a type pattern, rather than a type.
This allows an aspect A, for example, to declare that its advice should
dominate the advice of another aspect B as well as its subtypes, with
the new + subtypes operator: `aspect A dominates B+`.

[[_1_0alpha1compiler]]
== Compiler

The most important change in the compiler is that it supports the new
language. In addition, all reported bugs in the last release have been
fixed. Thanks for your bug reports.

The compiler also gets a new `-encoding` flag in this release for
handling source files that are not in standard US-ASCII format. Thanks
to Nakamura Tadashi for both suggesting this feature and for submitting
a nice patch to implement it.

=== Known Limitations

The previous compiler's limitations regarding join points that occurred
in anonymous classes have all been eliminated. Unfortunately,
eliminating this restriction has resulted in preprocessed source code
that is less readable than in previous releases. More care will be taken
in the next release to mitigate this effect.

Many semantic errors are not caught by ajc but fall through to javac.
Moreover, some errors regarding the initialization of final fields might
never show up when using ajc. This will be fixed shortly.

[[_1_0alpha1documentation]]
== Documentation

Although we spent much of our time this release cycle updating the
documentation to the new language rather than improving its content, we
did make some structural improvements. The old Primer has been split
into a Programming Guide, covering the language, and a Development
Environment Guide, covering the develompent tools. In addition,
printable versions of both guides (in PDF) are finally included in the
documentation package.

[[_1_0alpha1ajdoc]]
== Ajdoc

Ajdoc was rewritten to conform with the language changes and provide
support for other AspectJ/Java compilers. Our doclet is used by default
creating AspectJ-specific documentation, or Sun's standard doclet can be
used by passing the '-standard' flag to Ajdoc to produce regular Javadoc
documentation (excluding AspectJ-specifics).

[[_1_0alpha1ant]]
== Ant

An Ajdoc task is now available. The Ajc ant task was improved to be
completely back-compatible with the Javac task.

[[_1_0alpha1ajbrowser]]
== AJBrowser

The "AspectJ Browser" is a new standalone source code browsing
application. It will let you compile ".lst" files, view the structure
for those files and navigate the corresponding source code.

[[_1_0alpha1ajde]]
== AJDE

=== AJDE for JBuilder

==== Installation

* Use the installer to place the "ajdeForJBuilder.jar" and
"aspectjrt.jar" in to JBuilder's lib/ext directory.

==== Key Improvements

* The "AspectJ Structure View" replaces JBuilder's structure view
instead of being launched in a separate window.
* AJDE can be toggled on/off with the "AJ" button--when it is turned off
all of the menus, resources, and event listeners that it uses will be
removed.
* Projects no longer require the manual adding of the "aspectjrt.jar"
libarary.

==== Known Bugs & Limitations

* There is no compiler progress dialog--the way to tell if the compile
is finished is to watch the "status" area of the main window.
* There are no keyboard compile/execute shortcuts.
* The structure view is not persistent between IDE launches--you must
compile to view the structure for a program.
* The debugger has not seen much use and it's stability and performance
is limited.
* There is no ajdoc tool support.
* Linux testing has been very limited.

=== AJDE for Forte

==== Installation

* Use the installer to place the "ajdeForForte.jar" in Forte's modules
directory and "aspectjrt.jar" in to Forte's lib/ext directory.
* In the "Tools" menu select "Global Options"
* Right-click the "Modules" item and select "New Module from File..."
* Find the ajdeForForte.jar in the directory that you installed into
(e.g. c:\forte4j\modules) and select it.

==== Key Improvements

* AJDE can be toggled on/off with the "AJ" button--when it is turned off
all of the menus, resources, and event listeners that it uses will be
removed.
* The AJDE functionality is now contained within it's own toolbar and
menu.

==== Known Bugs & Limitations

* "Mode" switching is not supported in this version--you must do all of
your AspectJ work in the "Editing" mode. If you switch modes the IDE has
to be restarted for the AspectJ window to show again.
* There is no compiler progress dialog--the way to tell if the compile
is finished is to watch the "status" area of the main window.
* There are no keyboard compile/execute shortcuts.
* The structure view is not persistent between IDE launches--you must
compile to view the structure for a program.
* The debugger has not seen much use and it's stability and performance
is limited.
* There is no ajdoc tool support.
* Linux testing has been very limited.

=== AJDE for Emacs

AspectJ-mode now includes a toggle in the AspectJ menu that disables its
intrusive functions, enabling easy switching between Java and AspectJ
projects. See the README and CHANGES files in the distribution for
additional details.

AJDEE is now compatible with JDEE 2.2.7.1, JDEE 2.2.8beta4, and speedbar
0.14alpha. It a toggle in the AspectJ menu that disables its intrusive
functions, enabling easy switching between Java and AspectJ projects.
See the README and CHANGES files in the distribution for additional
details.

'''''
