I’m making a Spring Boot application. I want to generate PDF from HTML code: As you can see there is a h3 tag with cyrillic symbols. The problem is that after conversion and saving the symbols are not presented in PDF (it’s simply empty, because there is nothing more in html code to be visible). O…
Tag: java
OpenJdK 8 – Can’t compile package javafx.util does not exist
I build my java project by Maven. When I try to compile my java project by OpenJdk 1.8.0_322: I get error: P.S. If I use jdk1.8.0_202 from Oracle the project success compile! P.P.S. The project must be compile by java 8. It’s client requirements. Answer tl;dr Either: Develop/deploy on a JDK that include…
How do I import SlickUtils?
I’m attempting to import SlickUtils into my project, but I can’t figure out how. For example – to import ArrayList i’d do Could someone let me know how to do this with SlickUtils? Thanks. Answer This looks like an external library, which is not bundled with java. You can do this two wa…
spark java how to select newly added column using withcolumn
I am trying to create java spark program and trying to add anew column using and when I am trying to select with its saying Cannot reslove column name newColumn. Can some one please help me how to do this in Java? Answer qdf is the dataframe before you added the newColumn which is why you are unable to select
Spring: re-initialized a bean
This is my Spring bean in the configuration class that creates a gRPC ManagedChannel: The controller method is provided below: The service class is: For each request, I create a new ManagedChannel in the service method processRequest and shut it down using the method called shutdownManagedChannel. Earlier, I …
How to ignore TimeUnit.SECONDS.sleep in unit tests
I have a method which is calling sleep of 30 seconds but I dont want my unit test to have the same. I want my unit test to ignore the sleep and execute the rest on the method or reduce the sleep time to 1 sec. From the above sample code, How do I ignore the TimeUnit.SECONDS.sleep(30) when executing the
Tomcat and Tomcat dbcp issue after upgrade to v9.0.58
I’m getting this issue when upgrading Tomcat and Tomcat DBCP from v9.0.54 to v.9.0.58 with Java 11. Answer This issue was happening when we were trying to create a BasicDataSource BasicDataSource dataSource = new BasicDataSource(); which was imported from import org.apache.tomcat.dbcp.dbcp2.BasicDataSou…
How to solve Error when save Entity with List
I have next Entity(List was added with last update): And liquibase update: Well, when I try to save entity I get rg.postgresql.util.PSQLException: ERROR: relation “settings_bank” does not exist. I connect to DB by pgAdmin and- table was created.. List bankIds- just Long, its not connect to another…
Firebase Push notification not receiving in Android12 in Samsung S10 Device After updating Patch Update
I am using a Samsung Galaxy S10 mobile. On February 3rd Security patch was updated on my phone. After the update Push notification was not received in my App. Other App notifications are working fine. Anyone can answer my question, please? What was the reason for not receiving notification? Answer The answer …
Adding a Nested Statement
The problem, Write an application that reads three nonzero values entered by the user and determines and prints whether they could represent the sides of a triangle. I currently have I am trying to add an else statement to this for it to say “these values cannot make a triangle” if the original co…