Recent questions tagged JAVA

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java - IllegalStateException: Not supported on AsyncContext.startAsync(req, res)

I have created a servlet 3.0 to explore asynchronous request processing: @WebServlet(name="MyTest", urlPatterns={"/ ... and got the same issue. 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 - Prevent SWT ScrolledComposite from eating part of it's children

What did I do wrong? Here is an excerpt from my code: public void createPartControl(Composite parent) { parent. ... work some more on that. 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 - Common underflow and overflow exceptions

I am trying to get a hold of overflow and underflow exceptions in java, but couldn't get any nice tutorial. ... link to useful tutorial will do 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 (@PhoneWindow:onKeyUpPanel:1002) {main}

I get strange exceptions in my analytics lately. java.lang.NullPointerException at com.android.internal.policy.impl. ... do to prevent this. 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 read or write file as getExternalStorageDirectory is deprecated in API 29?

I am learning android development and i am facing some problem to read getExternalStorageDirectory in java, I have ... example code in java. See Question&Answers more detail:os...

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

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571 views

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java - How to add hyperlink in pdf using pdfbox

I want to add a hyperlink in PDF created using PDFBOX, such that i click on some text example 'Click here ... ----error contentStream.endText(); 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 - Is MySQL Connector/JDBC thread safe?

Is the standard MySQL JDBC driver thread-safe? Specifically I want to use a single connection across all threads, ... 's your experience here? 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 - Avoid Circular Redirect using HttpClient 4.1.1

How can I avoid circular redirect using HttpClient 4.1.1. As I am getting the error like this:- executing ... ) { e.printStackTrace(); } 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 - Android dependency 'com.google.android.gms:play-services-stats' has different version for the compile (16.0.1) and runtime (17.0.0) classpath

Yesterday my app was building correctly and today without changing anything I'm not able to build anymore, I' ... if you need more informations. 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 - Maven pointing to JRE instead of jdk

I've been working with a co-worker on a problem I have been experiencing on a new project I just joined. Long ... ideas on how to solve this? See Question&Answers more detail:os...

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

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146 views

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java - How can I throw an exception for the whole class instead of doing it method by method

I'm writing a program in Java, and nearly every method in one of my classes is written like: public void doStuff ... do it for the entire class? 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 - Missing artifact javax.transaction:jta:jar:1.0.1B ( Issue was different as you may see the resolution is different)

I am trying to learn Hibernate-Spring-Struts using the example Struts 2 + Spring + Hibernate integration example. But ... to get rid of it? See Question&Answers more detail:os...

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

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551 views

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java - createNewFile - open failed: ENOENT (No such file or directory)

I can't figure out what's going wrong here...I've tried writing this more succicinctly, that didn't work. I ... know what's going wrong? Thanks See Question&Answers more detail:os...

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

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300 views

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java - getters and setters performing additional logic

I have a Java class which represents the correlation between two elements (typical POJO): public class ... should be considered enough? See Question&Answers more detail:os...

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

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211 views

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java - InterruptedException : what causes it?

There are interesting questions and answers regarding Java's InterruptedException, for example The Cause of ... ? What else? See Question&Answers more detail:os...

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

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239 views

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java - How to convert Map<String, String> to Map<Long, String> ? (option : using guava)

I have a Map<String, String> the String key is nothing but numeric value like "123" etc. I'm getting numeric ... String> to Map<Long, String> ? See Question&Answers more detail:os...

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

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290 views

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java - eclemma branch coverage for switch: 7 of 19 missed

I have this switch system and I'm using eclemma to test the branch coverage. We are required to have at ... coverage on this switch 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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196 views

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java - Underlined JLabel

I am trying to make a JLabel underlined. I searched everywhere, but I got nothing. Even in the properties, there is ... JLabel. What can I do? See Question&Answers more detail:os...

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

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276 views

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java - What do I use instead of Whitebox in Mockito 2.2 to set fields?

When using Mockito 1.9.x I have been using Whiteboxto set values of fields to "inject" mocks. Se example ... got that information to late :( 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 - Designing a Test class for a custom Barrier

I had to do an implementation of a custom barrier class using locks as part of my course work. To test my LockBarrier ... (); t3.join(); } } See Question&Answers more detail:os...

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

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136 views

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java - Is there any difference between Android Geocoder Class and Google Geocoder API?

I just want to launch my application which is using Reverse Geocoding with the help of Geocoder Class but I ... vs Geocoder Class in Android? See Question&Answers more detail:os...

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

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601 views

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java - How to get PCM data from a wav file?

I have a .wav file. I want to get the PCM data from that sound file, so that I can get the individual data ... } catch(Exception e) { } } } See Question&Answers more detail:os...

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

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188 views

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java - I have never seen a software be released as jar, so how can I make a software be released as exe too?

Is everybody thinking that everybody else doesn't release softwares as jar and then releases softwares as exe too? See Question&Answers more detail:os...

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

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316 views

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java - How to do a silent install of mysql in inno setup?

I would create a setup program for my java application. It uses a mysql database so the installation of my ... changes Can someone help me?? See Question&Answers more detail:os...

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

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171 views

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java - Javafx Text multi-word colorization

Ok, I have a ListView object. I'm using this as a sort of console window for my server. It was really the ... .build(); } } "Working Example" See Question&Answers more detail:os...

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

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346 views

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java - Apache HttpClient 4.3 and x509 client certificate to authenticate

now I looking for solution regarding task how to rewrite deprecated solution for client side x509 certificate ... Any idea? Thanks See Question&Answers more detail:os...

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

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114 views

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java - Enforce partition be stored on the specific executor

I have 5-partitions-RDD and 5 workers/executors. How can I ask Spark to save each RDD's partition on the ... of data on each worker node? See Question&Answers more detail:os...

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

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387 views

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java - JavaFX - horizontal marquee text

I am trying to achieve effect similar to marquee - line of long (in my case) text which is moved in ... to get rid of these drawbacks? See Question&Answers more detail:os...

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

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