Java
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Java – Oracle driver memory leak – Tomcat
We are using tomcat-7.0 33. Spring 3.0. 1 and JPA use Tomcat JNDI data source Using ojdbc6 Oracle 10g. Jar (latest) ba…… -
Java – Maven: no source compilation
I'm following "building Java projects with Maven"（ https://spring.io/guides/gs/maven/#scratch ）, when I run 'MVN com…… -
Java – validationexception: unable to find default provider
I found three entries in the stack overflow: javax. validation. ValidationException: Unable to find default provider j…… -
File I / O: read from one file and write to another (Java)
I'm currently working in a lab in my CPE class. We have to create a simple program from Txt file and print them to dif…… -
Java – non null attributes refer to null or instantaneous values of persistent values
I try to use JPA 1 to persist two different entities and use hibernate to implement it Parent entity class @Entity @Ta…… -
Java – is BigInteger thread secure?
I need to update the global BigInteger value through multiple threads – is BigInteger thread safe? Solution BigInteger…… -
Java – how to improve applications to avoid heap space problems
I have an application that works with many custom objects created in methods and never needs to be outside of them The…… -
Java – converting from double to int does not always just discard the decimal part
I'm experimenting with the code I found here the Java specialties' newsletter public class MeaningOfLife { public st…… -
How to install Java 7 EE SDK and download it as Mac OSX SH file
I'm new to developing Java on Mac OS X I want to download the Java 7 EE SDK so that I can use Java for desktop / mobil…… -
Java: resume download in urlconnection
I wrote a program to download some files from some servers .... File fcheck=new File(SaveDir+"/"+filename); if(resume…… -
Is there a way in Java to find the name of the variable passed to the function?
I have a Java function called testfornull public static void testForNull(Object obj) { if (obj == null) …… -
Java – Android: get the day of the week from the date?
How can I format the date like this public static String sFleTimeToDate(double ft) { double date = ft / 100…… -
How to send JSON back in Java?
I have a problem using gzip compression and jQuery together It seems that this may be the way I send JSON responses in…… -
Java – Jade cannot find proxy
I'm a novice in jade and have some trouble loading the agent I created a new IntelliJ project, added "jade. Jar" and "…… -
Nested enumeration in Java?
I want to define some enumerations for the various Ajax services provided in my web application, such as: Enum Service…… -
What happens if you use deprecated methods / functions in Java?
Any problems with using deprecated features in Java? If so, why keep this function? Is it a bad habit to use disapprov…… -
Java – why are the values of class HashSet sorted when I use iterators?
I have the following code on the main method. When I traverse set and print the value, the value has been sorted What'…… -
Java – httpmediatypenotacceptableexception after upgrading to spring 3.2
After upgrading the spring MVC application to spring 3.2, when accessing some of my URLs, I receive the following exce…… -
Java – how do I test the Maven prototype I just created?
I've created several prototypes for projects that work now, but I want to be able to verify that the code generated fr…… -
What is the largest adjustable byte buffer available in Java?
I need the byte buffer class in Java for single thread use When the buffer is full, the buffer should be resized inste…… -
In neo4j, how to set a label as a parameter in a cypher query in Java?
I have a problem using cypher parameter in neo4j in Java I run embedded databases The code should look like this (grap…… -
Java – how to add Weblogic – application. Net to the war file xml
Can you tell me if I can add Weblogic - application. To the war file XML, if so, how to perform the same operation Sol…… -
Python regular expression for java package name
I have a problem using Python to determine a valid java package name This is the code: packageName = "com.domain.lala"…… -
Java – I encountered this exception: an unresolved compilation problem
I removed the jar from the project（ pdf@R_157_2419 @, bouncy castle, etc.) and move them to another folder, but I get…… -
JavaFX 2.0 activates menus, such as MenuItem
I'm making a menubar, and I can't press the menu function: "file" and perform an action It's like opening another fxml…… -
Java – why does m2eclipse complain about missing artifacts when the MVN command line is not available?
I have just set up a new installation of eclipse Helios and have configured m2eclipse to use Maven's external (V 2.2.1…… -
Debugging – the most effective way to debug on a BlackBerry device?
I am looking for the fastest and most effective way to debug my java application BlackBerry I noticed that in my case,…… -
Java – guava dependency on jar package size – is there a small version?
I just raised the version of guava library from 9 to 10 and noticed that the jar file size has increased 1.5MB just to…… -
NoClassDefFoundError uses Jackson 2.2 X with gradle on Android
For my android project, I set gradle with Jackson 2.2 X is as follows: // build.gradle buildscript { repositories …… -
Java – add new fields in body exception spring rest
I want to handle exceptions in the rest spring startup application I know that with @ controlleradvice and responseent…… -
Java – why initialize a member object after the constructor of a superclass?
I encountered an interesting problem yesterday. Although the repair is very simple, I am still a little vague about it…… -
Java – how to interrupt the idle of IMAP?
I'm using the JavaMail API that connects to my IMAP server Using javax mail. Folder. When idle () method, everything w……