Recent questions tagged java

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java - How can I get JAXB2 to emit CamelCase bindings?

I'm generating Java classes from a WSDL using the jaxws-maven-plugin's wsimport goal. Out of the box, ... without specifying them all manually? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - TreeCellRenderer: how to set background color?

I've written a custom TreeCellRenderer in order to change a components appearance. Everything works fine, except that ... return c; } } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Unable to read VR Path Registry from

Version: geckodriver-v0.20.0-win64 Platform: Windows 10 Home Single Browser: Firefox: 59.0.2 (64-bits) Selenium: ... I do to fix this output? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - How to make ZoneOffset UTC return "+00:00" instead of "Z"

Is there any built-in method in java to return "+00:00" for ZoneOffset UTC? The getId() method only return "Z". My ... ) ? "+00:00" : id; } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - How to make a copy of ArrayList object which is type of List?

I studied that Java passes object references by value, and in order to make a local copy of an object I can ... = new ArrayList<String>(list); See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Why is the interceptor not called in the same service class?

I want to use interceptors in a Java-SE application and I am using weld as CDI implementation and i'm ... understand. Thank you in advance! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Annotation to join columns with OR condition instead of AND condition

I have 2 java classes, Relation and Person, which both are present in my database. Person: @Entity @Table(name ... saying OR instead of AND See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Access is denied when using FileOutputStream

I'm having an issue getting this to work. It takes in a string which consists of several pieces of information ... (new FileWriter(file,true)); See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - NullPointerException: Attempt to read from field 'int android.app.Fragment.mContainerId' on a null object reference

Having some interesting issue with transaction on fragments on Android Lollipop ONLY. Crash happens when i go back ... "/> </transitionSet> See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - IllegalStateException in Hibernate metamodel generation with maven

I'm using hibernate-jpamodelgen to generate the metamodel classes using maven. When i run mvn clean package, it ... </scope> </dependency> See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Access outer class from inner class: Why is it done this way?

So most of us know how to access an outer class from an inner class. Searches with those words give oodles ... those words give how-answers. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Exclude Package From Gradle Dependency

I'm experiencing an issue where multiple versions of the same class are showing up in my classpath. The class ... 'm open to other suggestions. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Can I use data from JTable for my Jasper report

I'm new in using Jasper and I'm practicing of creating programs for accounting. Jasper helps me to generate nice ... 's from jtable? Thank you! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Execute order for test suite in junit

I am having a test suite which is having the following structure TestClass1 - testmethod1() - testmethod2() - ... final one(last one). See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Spring Rest Controller: how to selectively switch off validation

In my controller I have a method for creating an entity import javax.validation.Valid; ... @RestController ... somehow possible via inheritance? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Compilation hangs for a class with field double d = 2.2250738585072012e-308

I have come across an interesting situation. A coworker committed some changes, which would not compile on my machine ... A language edge case? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Print list of binary permutations

What I am trying to do is print all the possibilities of a binary number n digits long. In other ... right direction would be appreciated. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - How to inject a bean into a Spring Condition class?

I am defining conditions that I will check to dynamically load one of the two implementations of my service ... provided by that dependency? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Using Jackson, how can a list of known JSON properties be obtained for any arbitrary pojo class?

Ideally, it would look much like this: List<String> props = objectMapper.getKnownProperties(MyPojo.class); Alas, there ... curious to know. :) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Doesn't the JVM release all the resources that are not explicitly closed by the programmer on program exit

I've always heard that resources in java must be closed after use or these resources will get exhausted. Is it ... even after the program exit? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Printing very big BigIntegers

I'm trying to figure out the following issue related to BigIntegers in Java 7 x64. I am attempting to calculate ... time to read my question. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Get button name from ActionListener?

I have scoured the internet but can't find an answer to this : I'm using a for loop to create 36 buttons ... of the button. Thanks in Advance. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - purpose of socket.shutdownOutput()

I am using the below code to send data to a tcp server. I am assuming that I need to use socket. ... getBytes()); outToClient.flush() } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Found multiple defaults.yaml resources

when i tried to submit the topology i found this Exception in thread "main" java.lang.RuntimeException: Found multiple ... </plugin> </plugins> See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Inject ObjectMapper into Spring Kafka serialiser/deserialiser

I'm using Spring Kafka 1.1.2-RELEASE with Spring Boot 1.5.0 RC and I have configured a custom value ... to reuse in the serialiser/deserialiser. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Compilation error with generics and ternary operator in JDK 7

I ran into a compilation failure while writing some Java code, which I distilled down to the following test case: ... so, what was the change? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - junit not using the newest file

I use junit automatically installed by maven. When I run the maven test my tests work fine. But when I call the ... fixed the problem. Weird... See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Drawing multiple lines in a BufferedImage

I am trying to draw horizontal and vertical lines on a bufferedimage. It should end up looking like a grid ... JPanel. Any help is appreciated. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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