Reordered inline comments so that they now apply to current
state of the code.
Added logger entry in testlog4j.properties to avoid console
warning.
Issue: SPR-9417
This patch fixes several compiler warnings that do not point to code
problems. Two kinds of warnings are fixed. First in a lot of cases
@SuppressWarnings("unchecked") is used although there are no unchecked
casts happening. This seems to be a leftover from when the code base
was on Java 1.4, now that the code base was moved to Java 1.5 these are
no longer necessary. Secondly there some places where the raw types of
List and Class are used where there wildcard types (List<?> and
Class<?>) would work just as well without causing any raw type warnings.
These changes are beneficial particularly when working in Eclipse or
other IDEs because it reduces 'noise', helping to isolate actual
potential problems in the code.
The following changes have been made:
- remove @SuppressWarnings where no longer needed
- use wildcard types instead of raw types where possible
Previously, if the resolution of a ${...} placeholder resulted in a
valid URL for the location of a log4j properties/XML file, the URL
would ultimately be malformed by an unnecessary call to to
WebUtils#getRealPath.
The implementation of Log4jWebConfigurer#initLogging now eagerly
attempts SystemPropertyUtils#resolvePlaceholders before checking to see
if the location is a valid URL, and bypassing the call to
WebUtils#getRealPath if so.
Issue: SPR-9417
SPR-7591 introduced a java.nio.charset.Charset field within
HttpStatusCodeException. The former is non-serializable, thus by
extension the latter also became non-serializable.
Because the Charset field is only used for outputting the charset name
in HttpStatusCodeException#getResponseBodyAsString, it is reasonable to
store the value returned by Charset#name() instead of the actual Charset
object itself.
This commit refactors HttpStatusCodeException's responseCharset field to
be of type String instead of Charset and adds tests to prove that
HttpStatusCodeException objects are once again serializable as expected.
Issue: SPR-9273, SPR-7591
When @ResponseStatus has a reason and servletResponse.sendError() is
called, the response is committed and should no longer be written to.
After this change, the ServletInvocableHandlerMethod will mark the
response fully handled and will ignore any non-null return values.
Issue: SPR-9159
Before this fix the q-value of media types in the Accept header were
ignored when using the new RequestMappingHandlerAdapter in combination
with @ResponseBody and HttpMessageConverters.
Issue: SPR-9160
The MappingJacksonHttpMessageConverter now catches all IOException
types raised while reading JSON and translates them into
HttpMessageNotReadableException.
Issue: SPR-9238
The ErrorsMethodArgumentResolver expects the preceding @ModelAttribute
in the controller method signature to be the last one added in the
model -- an assumption that can break if a model attribute is added
earlier (e.g. through a @ModelAttribute method) and more attributes
are added as well. This fix ensures when an @ModelAttribute is resolved
as a controller method argument it has the highest index in the model.
Issue: SPR-9378
Jackson serialization supports pretty printing. Usually it's enabled
by invoking ObjectMapper.configure(..), which is not convenient for
apps with XML configuration. The Jackson HttpMessageConverter and View
now both have a prettyPrint property.
A second more serious issue is documented here:
https://github.com/FasterXML/jackson-databind/issues/12
The workaround discussed at the above link has been implemented.
Issue: SPR-7201
Jackson 2 uses completely new package names and new maven artifact ids.
This change adds Jackson 2 as an optional dependency and also provides
MappingJackson2HttpMessageConverter and MappingJackson2JsonView for use
with the new version.
The MVC namespace and the MVC Java config detect and use
MappingJackson2HttpMessageConverter if Jackson 2 is present.
Otherwise if Jackson 1.x is present,
then MappingJacksonHttpMessageConverter is used.
Issue: SPR-9302
This change updates Open-Session-in-View filters and interceptors for
use in async requests mainly ensuring the open Hibernate session is
unbound from the main request processing thread and bound to the to
async thread.
Issue: SPR-8517
The fromUri method of UriComponentsBuilder used uri.getXxx() methods,
which decode the URI parts causing URI parsing issues. The same method
now uses uri.getRawXxx().
Issue: SPR-9317
Before this change there were numerous javadoc warnings being reported
while building Spring framework API.
This commit resolves most of the javadoc warnings, reducing the total
number from 265 to 103.
Issue: SPR-9113
When a controller returns a DeferredResult, the underlying async
request will eventually time out. Until now the default behavior was
to send a 503 (SERVICE_UNAVAILABLE). However, this is not desirable
in all cases. For example if waiting on an event, a timeout simply
means there is no new information to send.
To handle those cases a DeferredResult now accespts a timeout result
Object in its constructor. If the timeout occurs before the
DeferredResult is set, the timeout result provided to the constructor
is used instead.
Issue: SPR-8617
* Clarify semantics and behavior of AsyncWebRequest methods in most cases
making a best effort and not raising an exception if async processing
has completed for example due to a timeout. The startAsync() method is
still protected with various checks and will raise ISE under a number
of conditions.
* Return 503 (service unavailable) when requests time out.
* Logging improvements.
Issue: SPR-8517
From a programming model perspective, @RequestMapping methods now
support two new return value types:
* java.util.concurrent.Callable - used by Spring MVC to obtain the
return value asynchronously in a separate thread managed transparently
by Spring MVC on behalf of the application.
* org.springframework.web.context.request.async.DeferredResult - used
by the application to produce the return value asynchronously in a
separate thread of its own choosing.
The high-level idea is that whatever value a controller normally
returns, it can now provide it asynchronously, through a Callable or
through a DeferredResult, with all remaining processing --
@ResponseBody, view resolution, etc, working just the same but
completed outside the main request thread.
From an SPI perspective, there are several new types:
* AsyncExecutionChain - the central class for managing async request
processing through a sequence of Callable instances each representing
work required to complete request processing asynchronously.
* AsyncWebRequest - provides methods for starting, completing, and
configuring async request processing.
* StandardServletAsyncWebRequest - Servlet 3 based implementation.
* AsyncExecutionChainRunnable - the Runnable used for async request
execution.
All spring-web and spring-webmvc Filter implementations have been
updated to participate in async request execution.
The open-session-in-view Filter and interceptors implementations in
spring-orm will be updated in a separate pull request.
Issue: SPR-8517
The new @MVC support classes select a HandlerMethodArgumentResolver
and a HandlerMethodReturnValueHandler statically, i.e. based on
the signature of the method, which means that a controller method
can't declare a more general return type like Object but actually
return a more specific one, e.g. String vs RedirectView, and
expect the right handler to be used.
The fix ensures that a HandlerMethodReturnValueHandler is selected
based on the actual return value type, which is something that was
supported with the old @MVC support classes. One consequence
of the change is the selected HandlerMethodReturnValueHandler can
no longer be cached but that matches the behavior of the old
@MVC support classes.
Issues: SPR-9218
Previously 'Content-Disposition' was passed to Part.getHeader(String).
However the Javadoc for that method specifies the header should be
case insensitive. Note that the JavaDoc in tomcat-servlet-api doesn't
mention this. It can only be found in the official api JavaDoc:
http://download.oracle.com/otndocs/jcp/servlet-3.0-fr-oth-JSpec/
Issue: SPR-9149
Before this fix MultipartResolver javadoc mentioned that there is only
one concrete implementation included in Spring. This was true as of
Spring 2.5 but Spring 3.1 added another one, Servlet 3.0 Part API based
implementation.
This fix changes MultipartResolver javadoc so that the other one,
StandardServletMultipartResolver implementation, gets also listed.
Changed javadoc mentions also as of which version does Spring bundle
two MultipartResolver implementations.
Issue: SPR-5984
Each of these tests began failing during the Gradle build porting
process. None seem severe, many are likely due to classpath issues.
In the case of TestNG support, this needs to be added to the Gradle
build in order to execute these tests. See SPR-8116.txt
This renaming more intuitively expresses the relationship between
subprojects and the JAR artifacts they produce.
Tracking history across these renames is possible, but it requires
use of the --follow flag to `git log`, for example
$ git log spring-aop/src/main/java/org/springframework/aop/Advisor.java
will show history up until the renaming event, where
$ git log --follow spring-aop/src/main/java/org/springframework/aop/Advisor.java
will show history for all changes to the file, before and after the
renaming.
See http://chrisbeams.com/git-diff-across-renamed-directories
Sam Brannen
Philippe Marschall
Chris Beams
Rossen Stoyanchev
Stevo Slavic