Prior to this commit, if a single null value was passed to a method with
a varargs array of type java.util.Optional, that null value was passed
unmodified. On the contrary, a null passed with additional values to
such a method resulted in the null being converted to Optional.empty().
This commit ensures that a single null value is also converted to
Optional.empty() for such SpEL expressions.
Closes gh-27795
A regression was introduced in gh-27582. Specifically, when null is
supplied as the single argument for a varargs parameter in a method or
function in a SpEL expression, ReflectionHelper currently throws a
NullPointerException instead of leaving the null value unchanged.
This commit fixes this regression.
Closes gh-27719
Prior to this commit, if a SpEL expression invoked a method or
registered function that declares a String varargs argument, there were
sometimes issues with converting the input arguments into the varargs
array argument. Specifically, if the expression supplied a single
String argument containing a comma for the varargs (such as "a,b"),
SpEL's ReflectionHelper.convertArguments() method incorrectly converted
that single String to an array via the ConversionService, which
indirectly converted that String using the StringToArrayConverter,
which converts a comma-delimited String to an array. Thus, "a,b"
effectively got converted to a two-dimensional array ["a", "b"] instead
of simply ["a,b"].
This commit fixes this bug by avoiding use of the TypeConverter and
ConversionService for single arguments supplied as varargs when the
single argument's type matches the varargs array component type.
Closes gh-27582
In order to be able to use text blocks and other new Java language
features, we are upgrading to a recent version of Checkstyle.
The latest version of spring-javaformat-checkstyle (0.0.28) is built
against Checkstyle 8.32 which does not include support for language
features such as text blocks. Support for text blocks was added in
Checkstyle 8.36.
In addition, there is a binary compatibility issue between
spring-javaformat-checkstyle 0.0.28 and Checkstyle 8.42. Thus we cannot
use Checkstyle 8.42 or higher.
In this commit, we therefore upgrade to spring-javaformat-checkstyle
0.0.28 and downgrade to Checkstyle 8.41.
This change is being applied to `5.3.x` as well as `main` in order to
benefit from the enhanced checking provided in more recent versions of
Checkstyle.
Closes gh-27481
To slightly improve performance, this commit switches to
StringBuilder.append(char) instead of StringBuilder.append(String)
whenever we append a single character to a StringBuilder.
Closes gh-27098
This commit allows the spring-expression module to be more easily repackaged
for embedding in third-party JARs -- for example, via the Shadow Gradle plugin.
Closes gh-26779
The migration from JUnit 4 assertions to AssertJ assertions resulted in
several unnecessary casts from int to long that actually cause
assertions to pass when they should otherwise fail.
This commit fixes all such bugs for the pattern `.isNotEqualTo((long)`.
Prior to this commit, The "auto grow" feature in SpEL expressions only
worked for element types with a default constructor. For example, auto
grow did not work for a list of BigDecimal elements.
This commit inserts a null value in the list when no default
constructor can be found for the element type.
Closes gh-25367
Spring Framework 5.1.8 introduced a regression for the compilation of
SpEL expressions referencing a method declared in an interface. An
attempt to compile such an expression resulted in a
SpelEvaluationException caused by an IncompatibleClassChangeError.
This commit fixes this regression by adding explicit support in
ReflectivePropertyAccessor.OptimalPropertyAccessor.generateCode() for
methods declared in interfaces.
Closes gh-24357
Sam Brannen
Juergen Hoeller
Brian Clozel
Syuziko
Stephane Nicoll
diguage
Brandon Fergerson
Rossen Stoyanchev
fengyuanwei
limo520
Сергей Цыпанов
Andy Clement
XenoAmess
Martin Knopf
Sam Brannen
陈其苗
Sam Brannen
ZhangT
Juergen Hoeller