Java
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Java – when decrypting with a padding password, the input length must be a multiple of 16
I have a server and client socket program. The server sends encrypted messages to the client, that is cipher2 = Cipher…… -
How to interrupt the Java processing system like Java C
I have a java program that creates a lock file to ensure that no other execution runs at the same time If the program …… -
What are the security options for Internet Oriented Web servers in Java?
I need to implement a server that can be accessed publicly from the Internet The server has a very simple task: >Ac…… -
Java – Apache unexpected child element exception when generating web service client
I am trying to generate a web service client using wsdl2 Java from Axis2 (version 1.6.1) ./wsdl2java.sh -uri http://ww…… -
Play 2 – how do I set the default values of template parameters from the Java controller?
Can I define optional parameters when rendering Scala templates in play framework 2? My controller looks like this: pu…… -
Java – how to run arbitrary SQL with mybatis?
I have an application that uses mybatis for object persistence But I have the opportunity to run arbitrary SQL (from u…… -
What are the security options for Internet Oriented Web servers in Java?
I need to implement a server that can be accessed publicly from the Internet The server has a very simple task: >Ac…… -
Registering Java swing with event types
In Java swing, I can register a listener to a GUI event, as shown below guiElement.addMouseListener(myListener); But w…… -
Warning developers to invoke `super. in Java foo()`
Suppose I have these two classes, one extending the other public class Bar{ public void foo(){ } } public …… -
Is there a good alternative to serializing enumerations in Java?
The Java language benefits a lot from adding enumerations; Unfortunately, they don't work when sending serialized obje…… -
Java – hazelcast thread prevents tomee from stopping
context We want to use hazelcast as our jcache implementation in tomee Because we don't need crazy performance, we wan…… -
Java – performs DOM node to string conversion, but there is a namespace problem
So we have an XML document with a custom namespace (XML is generated by software beyond our control. It is parsed by D…… -
Java – user authentication failed: null
I have an API "vignette collab", which runs on an Apache stack with Java. I inherit a legacy code base and need to fin…… -
Java – how to calculate the shortest unique prefix for a set of strings?
This is a very common algorithm in command - line parsing Given a predefined set of long option names – calculates the…… -
Where is the current version of the Java virtual machine specification?
It seems that the only way to obtain the Java 6 version of the Java virtual machine specification is to adopt the seco…… -
Java – just in time doesn’t work
When I click Run, I encounter this problem in Android studio 2.3: 03/09 19:02:36: Launching app $adb shell am startser…… -
Send Skype messages in Java using taskan’s Java Skype API
My java project needs help I'm trying to send a message in a Skype conversation when a specific action occurs For this…… -
Java – XML file with & auml;
I have an XML file roughly as follows: <customer> <name>Müller</name> </customer>…… -
Java – swagger doc (type list) for API response
I'm using swagger to document my rest API However, I encountered a problem specifying the response for some API calls …… -
Java – how secure is internal storage?
What I need: For Android: I need to permanently save the data, but I can also edit (obviously read) it Users should no…… -
Java-8 – intersection of collection flows to new collections
Is there a better and simpler way to solve this problem? @Test public void testReduce() { Set<Integer> foo =…… -
What is the name of this Java state based design pattern?
In my work, we conducted a survey. A survey involves multiple steps I work in automation, so I design tests around the…… -
Java – eclipse Google App Engine “not enhanced”
First eclipse: Can't get rid of this error... I've tried every suggested fix on Google The persistence class "com.blah…… -
Constants and attributes in Java
Java best practices recommend reading properties as constants So what do you think is the best way to achieve your goa…… -
Java signature jar and server certificate
Can I sign a Java Web launch application using a server certificate? What I want to know is whether it works My server…… -
Java – replace switch with binaryoperator
I'm trying to replace the common switch for arithmetic operations with the binaryoperator function interface The basic…… -
Get image acquisition hardware from Java
How to realize image acquisition from hardware scanner in windows? I found the jtwain library, but it's commercial Is …… -
Java – call breakpoints do not work in JUnit tests in eclipse
I tried to debug the JUnit test in the eclipse, but my breakpoints did not trigger (unless they were in the first or s…… -
Java – this puzzling generic pattern crashes eclipse – can I make it work?
(I am using eclipse Luna 4.4.0, JDK 1.8.0_05) I'm making a game. The topology of the game world can be roughly divided…… -
Java – use enumeration values instead of enumeration class names
I use static enumeration in the interface and want to use it in the extension class I have the following interfaces: p…… -
Java – JPA hibernate – loop in entity relationship – cascade strategy
I have a group of entities connected to each other to form a cycle, that is, the parent entity P has two one to many r…… -
Java – basic histogram in JfreeChart
I need to create a simple histogram using JfreeChart There should be 3 sets of numeric values assigned to these groups……