DB2 insert performance – CentOS
I am trying to do a bulk insert into DB/2 from an Excel file. I am running WildFly 12 on my Windows 10 PC. DB/2 is running on a VM under CentOS 7. Using POI SAX methods, reading the complete…
Class 'org.apache.http.message.BufferedHeader' does not implement interface 'org.apache.http.NameValuePair'
Firstly I have used all of the solution in stackoverflow but in release apk i am getting this error. Can anyone tell me how to solve the issue? I am facing this problem while getting time from google. dateStr =…
Error java.lang.ClassNotFoundException: javax.enterprise.context.spi.Contextual – Apache
Right now im using the following: NetBeans 8.2 Apache Tomcat 8.0.53 JSF 2.2 IceFaces 4.3 All in a Maven project (3.6 I think) Im trying to fill an "ace:dataTable" with a List that I've already created. When I try to…
Inverting black and white on a bitmap is not working – Photoshop
I do some image processing with OpenCV. I want to invert this bitmap (black to white, white to black) and i have some problems with it. I got this Bitmap after doing this: // to grey Imgproc.cvtColor(mat, mat, Imgproc.COLOR_RGB2GRAY, 4);…
onResponse(String response) try { JSONObject jsonObject=new JSONObject(response);java.lang.String cannot be converted to JSONObject – Phpmyadmin
I can't find answer. tried many websites including this. i want to know where from the problem coming. Error is: org.json.JSONException: Value connection of type java.lang.String cannot be converted to JSONObject This is my andorid code:- StringRequest stringRequest=new StringRequest(Request.Method.POST, URL_LOGIN,…
Login with Telegram with Spring Security – Telegram API
I am trying to implement Log in with Telegram (https://core.telegram.org/widgets/login) on my Spring Boot application, but faced a problem. I've been trying to implement PHP code they provided to verify authentication, but something is wrong and I can't understand what.…
Frequently and long-time Java GC when peak requests arrives, which makes application stop response for 10 minutes – CentOS
I have a Java application providing online video play service. When peak traffic arrives (for example, users click the push window in mobile phone), the GC overhead is very heavy, I can see info about "promotion failed" and "concurrent mode…
Deleting file during FTP/Database connection failed – Apache
my program is meant to load an image, resize it, save it, send it to FTP server and then delete resized image. Full code - HERE The problem I am encountering is after pressing a finish button from the file…
Receive Userobject but every entry is null (facebook restfb)
I'm building a form and want to fetch fields like "first_name" and "last_name" by e.g. facebook or google data but only receive an object with every entry is "null" I've tryed go add a custom ScropeBuilder, fetching different accounts. my…
Java Graphics2D method for drawing an image where the pixel alpha values are used but the colour values are replaced with a given colour – Photoshop
I’ve been reading the API for Graphics2D and have seen examples of all the available composite modes (that are similar to photoshop blend modes) but I can’t see a way to draw a source image to a target buffered image…