I have a test method for one of the mappings where I provide all required data for the test Here is the controller itself But after running it I get this exception about failing to create Pageble object Answer The problem was solve by adding extra configuration for mockMvc
Shift image in OpenCV
I want to shift an image upward of 10 pixels without changing the size of the image. I know there was a very similar question about this but there is no information on the web on how to do it using Java. OpenCV Documentation also doesn’t say anything about this. Original image: Shifted image should look like this: I tried
Clickhouse jdbc driver connection issue
We are trying to connect to a clickhouse server using jdbc drivers. Our code snippet is in scala and would not be much different in java We get the following error : We went through a few other pages mentioning the same error and in keeping with the advice there, we used the latest version of the driver (0.3.1-patch). We
I want my menu to be repeated until I decide to exit
For now, my code receives an input, and executes the code that matches the number(user input), and terminates automatically. However, I want my menu to keep showing up until the user decides to exit(…
Error running a Java 8 batch with a jdk17
I’m trying to run a java 8 batch with a jdk17, the project is built with a jre1.8.0_192 and I put the following options in the VM: –add-modules=ALL-SYSTEM –add-opens=java.base/java.lang=ALL-UNNAMED –add-opens=java.base/java.math=ALL-UNNAMED –add-opens=java.base/java.net=ALL-UNNAMED –add-opens=java.base/java.util=ALL-UNNAMED –add-opens=jdk.attach/sun.tools.attach=ALL-UNNAMED -Djava.locale.providers=JRE,SPI I get the following error at runtime: java.lang.NullPointerException: Cannot invoke “Object.getClass()” because “obj” is null at java.lang.reflect.Method.invoke(Method.java:561) ~[?:?] at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:333) ~[spring-aop-4.3.25.RELEASE.jar:4.3.25.RELEASE] at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:190) ~[spring-aop-4.3.25.RELEASE.jar:4.3.25.RELEASE] at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
Loading of TableRows and TextViews into TableLayout after onCreate
I would like to load TableRows with TextViews into the table outside of oncreate. It should look like that. The problem is that I want to do the whole thing outside of the oncreate function. The rows and text views should only be added at runtime. If I do it outside then the added elements are rendered but not displayed.
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I’m developing an app that saves data into a database, I’m trying to backup and restore that database which I am able to do, my issue is with the “ominous” permmission popup on API30+ Allow management of all files Allow this app to access modify and delete files on your device….. Allow this app to access, modify and delete files
Jackson serializes Enum to NAME not value (XML) Java
I have this Enum defined: I have a model object that has a OutputFormatEnum variable called OutputFormat. When I set this variable to OutputFormatEnum.PDF, it is initially registered as “pdf” which is what it should be. When I then execute the following code: It sets the value of OutputFormat in streamTemplate to “PDF”, where it should be “pdf” (the value
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I am a novice to Android app development and Firebase. I want to know how can I get the value (String & Int) in the JSONArray file stored in Firebase Remote Config? I use Firebase Remote Config with the final goal to compare my app’s version code and priority level with the one stored in Firebase Remote Config to determine
Sonar Issue-Possible null pointer dereference due to return value of called method. Return value from a method is dereferenced without a null check
I have a void method which is being called with a string argument from a parent method. Answer getText seems to be more than a simple getter. The second time it evidently may return null.