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spring boot - java.lang.NoClassDefFoundError: Could not initialize class org.codehaus.groovy.vmplugin.v7.Java7

I am getting this exception java.lang.NoClassDefFoundError: Could not initialize class org.codehaus.groovy.vmplugin.v7 ... spring boot project. See Question&Answers more detail:os...

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syntax - Dot Operator in Haskell: need more explanation

I'm trying to understand what the dot operator is doing in this Haskell code: sumEuler = sum . (map euler) . ... sum . (map euler) . mkList See Question&Answers more detail:os...

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c# - Dispatcher Invoke(...) vs BeginInvoke(...) confusion

I'm confused why I can't make this test counter application work with 2 (or more) simultaneous running countertextboxes ... "" + _number; } } See Question&Answers more detail:os...

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testing - How to run GUI tests on a jenkins windows slave without remote desktop connection?

I have a jenkins agent set up on window 7 and a jenkins server on Linux. I am running GUI testing on ... to solve this issue? Much appreciated! See Question&Answers more detail:os...

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python - How to map features from the output of a VectorAssembler back to the column names in Spark ML?

I'm trying to run a linear regression in PySpark and I want to create a table containing summary statistics such as ... /p-values/t-values etc. See Question&Answers more detail:os...

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iPhone / iOS : Presenting HTML 5 Keyboard for Postal Codes

There are several tricks for displaying different keyboards on mobile devices for HTML 5 inputs (i.e. <input> ... than ideal for postal codes. See Question&Answers more detail:os...

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swift - What's the difference between a protocol extended from AnyObject and a class-only protocol?

Both this declaration protocol SomeProtocol : AnyObject { } and this declaration protocol SomeProtocol : class { } seem to ... Xcode 6.3.1. See Question&Answers more detail:os...

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c# - Are structs 'pass-by-value'?

I've recently tried to create a property for a Vector2 field, just to realize that it doesn't work as ... all struct objects passed by value? See Question&Answers more detail:os...

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iphone - Core Data vs. SQLite for SQL experienced developers

We're beginning development of an in-house app in the iPhone Enterprise developer program. Since it's close ... project justify us learning it? See Question&Answers more detail:os...

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c++ - How to merge two BST's efficiently?

How to merge two binary search trees maintaining the property of BST? If we decide to take each element from a tree and ... O(n1 * log(n2))? See Question&Answers more detail:os...

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node.js - What is purpose of the property "private" in package.json?

I'm learning node.js and express, I am wondering what is the property "private" in ./package.json file used for? See Question&Answers more detail:os...

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matrix - Finding row index containing maximum value using R

Given the following matrix lets assume I want to find the maximum value in column two: mat <- matrix(c(1:3,7:9 ... index, in this case row two? See Question&Answers more detail:os...

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hex - Python Hexadecimal

How to convert decimal to hex in the following format (at least two digits, zero-padded, without an 0x prefix) ... but not the second one. See Question&Answers more detail:os...

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python - Cannot find col function in pyspark

In pyspark 1.6.2, I can import col function by from pyspark.sql.functions import col but when I try to look ... a function that doesn't exist? See Question&Answers more detail:os...

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git - How do I write a batch file which opens the GitBash shell and runs a command in the shell?

I'm on Windows 7 trying to use a batch file to open the GitBash shell and make a git call. This is ... the command into GitBash and how? Mike See Question&Answers more detail:os...

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javascript - POST Request with Fetch API?

I know that with the new Fetch API (used here with ES2017's async/await) you can make a GET request like this ... do you make a POST request? See Question&Answers more detail:os...

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How to access Spring-boot JMX remotely

I know that spring automatically expose JMX beans. I was able to access it locally using VisualVM. However on prod ... in addition? Thanks, ray. See Question&Answers more detail:os...

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Android 4.4.2 - java.lang.RuntimeException: Performing stop of activity that is not resumed

I'm getting this exception on a 4.4.2 device. Not reproducible on Android 4.3 device or lower. Setup is I ... now causing problems in 4.4.x? See Question&Answers more detail:os...

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javascript - How to show hidden divs on mouseover?

How to show a set of hidden div's onmouseover? For example : <div id="div1">Div 1 Content</div> <div ... 's need to be shown onmouseover event. See Question&Answers more detail:os...

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ios - How to draw radial gradients in a CALayer?

I know CAGradientLayer doesn't support radial gradient at the moment and only has option of kCAGradientLayerAxial. I want ... how to do it? See Question&Answers more detail:os...

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php - How do I create and store md5 passwords in mysql

Probably a very newbie question but, Ive been reading around and have found some difficulty in understanding the ... the hashed password? Thanks See Question&Answers more detail:os...

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c++ - Is auto_ptr deprecated?

Will auto_ptr be deprecated in incoming C++ standard? Should unique_ptr be used for ownership transfer instead of ... to use shared_ptr instead? See Question&Answers more detail:os...

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c# - How to start ChromeDriver in headless mode

I want to try out headless chrome, but I am running into this issue, that I can't start the driver in headless ... ("#h-top-questions")).Text); See Question&Answers more detail:os...

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google play - Designing Android apps for tablets

In the Play developer console it says: Your APK does not seem to be designed for tablets But I have added ... to fulfill the Play criteria? See Question&Answers more detail:os...

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javascript - How can I change the URI without refreshing the page?

I have built a website with CodeIginer and I want to implement AJAX and JQuery in one of my pages. The problem ... one when I click a button? See Question&Answers more detail:os...

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javascript - Disabling tab focus on form elements

I have several divs within the same form. What I am trying to do is to disable the Tab key in one of the ... div2 - Tab works div3 - Tab works See Question&Answers more detail:os...

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How to hide the soft-key bar on Android phone?

When my app starts, I'd like to hide the soft keys bar (in red rectangle) to have a larger screen. ... with no hardware keys on phone front. See Question&Answers more detail:os...

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postgresql - SQL LIKE condition to check for integer?

I am using a set of SQL LIKE conditions to go through the alphabet and list all items beginning with the appropriate ... is on a Postgres DB. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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