I’m getting the following findbugs error: “Method call passes null for nonnull parameter : Null passed for nonnull parameter of getApiStatus(ApiResponse)” If the apiResponse is null in the CallApi method (not shown here for brevity’s sake), it simply throws an exception that is caught …
Tag: java
How can I prevent gson from converting integers to doubles
I’ve got integers in my json, and I do not want gson to convert them to doubles. The following does not work: The output is not what I want: Is there a way to have Integers instead of Doubles in my Map? Edit: not all my fields are integer. I’ve modified my example accordingly. I’ve read quit…
>> converted to �
One of the application user has reported that they are seeing � instartd of >> on their home and other pages. There are about 100 users and only one user has this issue. The user is using IE11. what may be the cause of this issue. Answer You should have this on top of your jsp files: If you have
OpenJDK 64-Bit Server VM warning: ignoring option MaxPermSize=350m;
When I’mtrying to open Intellij IDE using command line in linux like this ./phpstorm.sh both android studio and PHPStorm I always got this message : OpenJDK 64-Bit Server VM warning: ignoring option MaxPermSize=350m; support was removed in 8.0 and I was wondering if google find solution here but I was k…
How to serialize nested ObjectId to String with Jackson?
There are many questions concerning conversion from ObjectId to String with jackson. All answers suggest either creating own JsonSerializer<ObjectId> or annotating the ObjectId field with @JsonSerialize(using = ToStringSerializer.class). However, I have a map that sometimes contains ObjectIds, i.e.: I w…
Flip a Bitmap image horizontally or vertically
By using this code we can rotate an image: But how can we flip an image horizontally or vertically? Answer Given cx,cy is the centre of the image: Flip in x: Flip in y: Altogether:
Regex for polynomial expression
I have a string that I hope is a polynomial expression, something like “2x^2-3x+1. I want to use a regex to group each term in the expression. I currently have “^(-?d?x(^d)?)+”. I’m trying to capture a term as an optional minus sign, then a number, then x, then an optional exponent, wh…
Unable to save settings : IntelliJ IDEA
I use IntelliJ IDEA 15 and have a problem with the auto-saving. For example I make a new configuration, e.g. Show the line number. When I close IntelliJ and reopen my IDE, it doesn’t save my configuration and shows me this message: Unable to save settings : Failed to save settings . Please restart Intel…
Installing Oracle JDK on Windows subsystem for Linux
When trying to use the Linux version of Oracle’s JDK on the latest Windows 10 build having support for bash, I am running into a problem with the prompt hanging whenever attempting to invoke the java binary. Typing even something as simple as java -version hangs and I have to terminate the process to re…
How to add the data to Google Analytis by using java (programmatically)
At the current moment, I am trying to understand how to add any data to GA. I read the data from my GA account using Core Reporting API and Managment API without any problems. But now I want to add the data (the number of phone calls) to GA account programmatically. Somebody can explain me step by step –…