Java
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Java RMI: requires sniffer
How do I sniff and analyze Java RMI traffic? There are only very local solutions in Wireshark I need to know exactly w…… -
Java – unexpected action of light source in the room
I've written several Android apps, but this is my first time using 3D programming I created a room (4 walls, ceiling a…… -
Two java files, in the same directory, one accesses other classes / S?
I tried to grant one Java file to access another Classes in java files I want to do this on the command line For examp…… -
Unit testing – how to use JUnit and Hibernate effectively?
I want to use JUnit to test hibernate code, such as insert, update, delete Methods and transaction management But I do…… -
JPA – how do I change the eclipse link in glashfish 4.0?
I want to change eclipse link from 2.5.0 in glashfish 4.0 0 to 2.5 1. I have downloaded bundled downloaded and replace…… -
Java – how do I read / write raw hexadecimal bytes from I / O streams in Bluetooth chat?
I am developing an application based on Bluetooth chat sample code I need to be able to write a byte array containing …… -
Java – A4J: commandlink stops working after rerender
I created this test case to isolate my problems Once the Ajax update is polled, the A4J: commandlink operation will no…… -
java. Lang.illegalargumentexception: unknown parameter name: customer
I was trying to create a list using the getnamedquery method, but I got this exception This is my code public List<…… -
Java – SQLite selecting from like statements does not work?
When I look at the database and run this query, I get the expected results SELECT * FROM users WHERE options LIKE '%[-…… -
Unable to find iframe in selenium webdriver (Java)
I want to select an iframe element in the pop - up window I can enter the pop-up window, but I can't find iframe The f…… -
Java – lists all sequences in HSQLDB 1.8
How to list all sequences in a specific schema in HSQLDB 1.8? Note: HSQLDB 1.8 does not support the information introd…… -
How to correctly use Java 8 option to conditionally return values or throw exceptions?
I want to implement code like the following to verify the input in my @ restcontroller so that I can avoid explicit nu…… -
Java – how to determine the datasource being used by a hibernate session?
I have several unit tests that should use HSQLDB, but I know some of them are actually using physical databases I want…… -
Java – what is the reason for using openjdk?
I understand the difference between Oracle JDK and open JDK in some way But I can't find a reason to use open JDK, bec…… -
@ parameters in JUnit 4
Can I use multiple @ parameters methods in JUnit test classes running with the parameterized class? @RunWith(value = P…… -
Java – handling catastrophic exceptions
I read in the c# primer that if you don't know how to handle it, you shouldn't find exceptions Considering these sugge…… -
Java – you cannot use getdeclaraedfields() to retrieve fields from Scala classes
I'm trying to use Scala's Java library (johm) and notice that when lib tries to use something like model getClass(). G…… -
JPA – the difference between the methods of ‘detach’ and ‘Remove’ entitymanager
I want to know what is the real difference between em.detach (entity), em.remove (entity) and using jpql requests: em.…… -
Java – core dump cannot be written Minidump is not enabled on the client version of windows by default
I have this Java class, and I try to use eclipse Mars 1. Ide operation This is the code: import com.xuggle.mediatool.I…… -
Java wildcards behave strangely when classes are generic
I think I have some good understanding of Java generics This code is not compiled. I know why We can only pass the typ…… -
java – HttpProtocolParams. Setuseexpectcontinue (params, false) – when is it set to true?
I'm using org apache. http. impl. client. Defaulthttpclient retrieves XML from WebService and tries to determine wheth…… -
Java – static variable vs volatile
I'm just asking questions from a thread perspective... I may have answered many times, but please help me understand t…… -
Java speed access array index and temporary variable
What is java faster Directly access the array index multiple times, or save the value of the array index to a new vari…… -
Java – use mockito’s argumentcaptor class to match subclasses
The following code shows my problem In fact, I'm trying to use mockito's argumentcaptor to verify whether a method is …… -
Java – polymorphic deserialization of JSON using Jackson, and the property type becomes “null”
I'm using Jackson to convert a large JSON string into categories and subclasses I have a list of objects. Each object …… -
Why did the elastic search java api ignore our query restrictions?
I am using this Code: client.prepareSearch("test").addSort("dateUpdated",SortOrder.DESC) .setSearchType(Se…… -
Java – handle editing events in jtextfield
I have a login form where the user can enter his credentials to log in I have a jlabel to display text that tells the …… -
What is the best free JavaScript obfuscator available as a Java library?
I know this question has been asked many times, but this is my specific needs Obfuscators need to appear as Java libra…… -
Java – Comments for calling methods
I'll start with a piece of code class Clazz { public void doSomething() { ... check(); } …… -
Java – chrome cannot load GWT source map
Chrome recently stopped displaying source maps My project has made some breakthroughs. Now I use the new version of GW…… -
Java date difference puzzle
I want to calculate a date time difference, but I get some strange results: import java.util.Calendar; import java…… -
GUI Java program – drawing program
I've been trying to figure out what's wrong with my code Our idea is to create a small paint program with red, green, ……