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Jackson serialization: ignore empty values (or null)
...fits your use case
public static class Request {
// ...
}
As noted in comments, in versions below 2.x the syntax for this annotation is:
@JsonSerialize(include = JsonSerialize.Inclusion.NON_NULL) // or JsonSerialize.Inclusion.NON_EMPTY
The other option is to configure the ObjectMapper direc...
What is the use of join() in Python threading?
...d until the thread whose join() method is called is terminated.
Source : http://docs.python.org/2/library/threading.html
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java.lang.ClassNotFoundException: Didn't find class on path: dexpathlist
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How to getText on an input in protractor
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This is answered in the Protractor FAQ: https://github.com/angular/protractor/blob/master/docs/faq.md#the-result-of-gettext-from-an-input-element-is-always-empty
The result of getText from an input element is always empty
This is a webdriver quirk. and elements always have em...
Convert Iterable to Stream using Java 8 JDK
... (the default implementation uses spliteratorUnknownSize), but in the more common case, where your Iterable is already a collection, you'll get a better spliterator, and therefore better stream performance (maybe even good parallelism). It's also less code:
StreamSupport.stream(iterable.spliterato...
App Inventor 2 App上架国内应用市场完整指南 · App Inventor 2 中文网
...应用市场
开发者入口：https://developer.huawei.com/consumer/cn/service/josp/agc/index.html
特点：国内最大的安卓应用分发平台之一
注意事项：
有社区功能的需要申请安全认证
原生 WebView 套网页时，input file 可能...
Cross field validation with Hibernate Validator (JSR 303)
...ws the error message to be specified per match.
For example, validating a common form:
@FieldMatch.List({
@FieldMatch(first = "password", second = "confirmPassword", message = "The password fields must match"),
@FieldMatch(first = "email", second = "confirmEmail", message = "The ...
Is there a way to instantiate a class by name in Java?
...ewInstance() method on this object:
Class<?> clazz = Class.forName("com.foo.MyClass");
Constructor<?> constructor = clazz.getConstructor(String.class, Integer.class);
Object instance = constructor.newInstance("stringparam", 42);
Both methods are known as reflection. You will typically...
Cannot truncate table because it is being referenced by a FOREIGN KEY constraint?
... edited May 23 '17 at 12:10
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111 silver badge
answered Oct 31 '08 at 15:08
John RudyJohn Rudy
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How to set selected item of Spinner by value, not by position?
...Spinner, and it contains as one of its choices: "some value".
To find and compare the position of "some value" in the Spinner use this:
String compareValue = "some value";
ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(this, R.array.select_state, android.R.layout.simple...