Java
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Java Logging – Wrapper？
I started with a new project and made some considerations about logging I always use patterns, where each class that c…… -
Java – how to link bifunctions?
I want to link bifunctions, just like in the chainwanted method in the following code example Bifunction takes functio…… -
Java – must be called ReleaseStringUTFChars after GetStringUTFChars (when char * is passed to C function)?
I'm a little confused about the objects passed from Java to C? Should they be deleted in native JNI methods or garbage…… -
Java Unisex bathroom
I have to use Java semaphores to solve this problem, but I don't know how. I can't find any relevant Java data What's …… -
The radio button in Java – struts 1 ActionForm does not have “selected”
I have a JSP page with many questions and an ActionForm with a map with input names and values When I load the page, t…… -
Java – EJB: using entitymanager in postconstruct method
After constructing the bean, I want to use the entitymanager to retrieve data from the database It is not possible in …… -
Java – how to force an application to create thumbnails (Snapshots) for the list of recent applications?
My application tester reports: My device uses Android 2.0, so I can't check and debug the problem (the thumbnail in th…… -
Java – Disable spacebar trigger click JButton
Jbuttons consider that pressing the spacebar is the same as clicking JButton (assuming JButton has focus, I assume her…… -
Java class finder tool
Anyone who often uses Java knows that multiple jars in the classpath can cause us trouble I'm looking for a tool that …… -
Java – output Jersey record to file?
We have added these to our web In XML: <init-param> <param-name>com.sun.jersey.spi.container.Container…… -
Java – Show / hide JPopupMenu from JButton; Focuslistener is not working properly?
I need a JButton with an additional drop-down style menu So I took a JPopupMenu and attached it to JButton in the way …… -
How to find errors in the new JavaFX error tracker
The existing JavaFX error link has died How to find errors in the new system? For example How to find bugs Solution As…… -
Java – use log4j to create new log files every day
I want to use log4j in my java project. What configuration should I provide log4j.appender.FILE = org.apache.log4j.Dai…… -
How to convert a string to a date in Java, regardless of the system format [copy]
See English answers > parse any date in java3 public static String dateToString(String date){ if(date.equals(""…… -
Java – using PostgreSQL, why doesn’t hibernate / JPA create cascading constraints?
I have an entity: @OneToMany(cascade = CascadeType.ALL,mappedBy = "bar") private Set<Foo> fooSet; An entity foo:…… -
Java messaging service and Haskell
I wonder if there is any way to receive JMS messages from some providers in the Haskell program, such as ActiveMQ or w…… -
Java – types are created safely to be passed to comparator Function instance of comparing()
Suppose I have a method with the following signature: <T,U extends Comparable<? super U>> Comparator<T&…… -
Java – the request method ‘post’ is not supported
According to spring documentation here: They have completed the latter and can be implemented using the following spri…… -
Java – scrolling composites with slow redrawing look ugly
I am implementing the Gantt chart component for SWT, which needs to be redrawn (for example, the whole visible part of…… -
Java – use local EJBs in the same container but different ears
I'm trying to use local EJBs in the same GlassFish, but different ears But GlassFish cannot find the local EJB or use …… -
How do I prevent duplicate edges from being created between the same vertices in orientdb?
I have vertex "character" and edge "know" This is my SQL example of how to create it CREATE CLASS Person EXTENDS V; CR…… -
Is there any way to find the number of threads that the task manager runs in Java?
In Java, if I start 1000 threads using the loop shown below, is there any way to monitor the number of threads actuall…… -
Java – get rid of GWT MVP template
About the location and attachment of the file activity MVP, I have to create each page: >A place > an activity &…… -
Java – how to pass generic classes as params to the intent constructor
I have this general activity in my android app public class NavegadorActivity<T> extends Activity { .... ..…… -
Java – try to configure LDAP as a JNDI resource in Tomcat
I have an LDAP server that I use to authenticate users in the Tomcat web application I'm using jndirealm, which is con…… -
Java – spring does not send all the fields in the JSON response
My POJO: import java.io.Serializable; import javax.persistence.Entity; import javax.persistence.Id; import javax.pers…… -
Java – how to get hibernate dialect at runtime
In my application, I use hibernate and SQL Server database, so I set <property name="hibernate.dialect" value="org.…… -
Eclipse UML plug-in with java code generation
Does anyone know that a good (read: free) eclipse UML plug-in can also do code generation? If not, does anyone know an…… -
Java – why did this method call fail? (generic and wildcard)
I received the following error: 'call(ContainsMonitor)' cannot invoke 'call(? extends webscout.Monitor)' in 'WebScoutC…… -
Java – browser authentication via httpurlconnection
At present, I am studying the implementation of tmdb API There is a method called user authentication I have successfu…… -
Java – spring batch: different job initiators for different jobs
I have two different jobs (actually more, but assume 2 for simplicity) Each job can run in parallel with another job, …… -
Java – Jackson Deserialize the missing attribute to null optional
Suppose I have such a class: public static class Test { private Optional<String> something; pu……