Is it possible to read from ObjectInputStream in while loop which will terminate by exception thrown by socket timeout socket.setSoTimeout(4000); Answer When you say ‘not working’, what you really mean is ‘not compiling’, for reasons that are stated in the compiler message: Object isn&…
Why Getting NoClassDefFound error for JedisConnection when using Spring Redis
Hello when trying to use spring-redis i am getting exception when doing any connection operation using redis. My config method goes like this Please suggest if anyone knows why i am getting this exception. Answer After wasting almost one day and finding that the jar is already on my class path, i further debu…
spring boot starter security post methods not working
I have added spring ‘spring-boot-starter-security’ to existing spring boot project ; after that the post methods in spring rest controller not working properly it shows a error something like this : my controller method is this: pom file: if i remove all these security related stuff the code is wo…
Is there a way to encrypt/decrypt using Bouncy Castle without using compression
I’m looking for a way to encrypt/decrypt files/byte arrays without calling compression of input. To be more precises don’t want to use something like ByteArrayOutputStream bOut = new …
How to convert a CSV file to List<Map>
I have a CSV file which has a header in the first line. I want to convert it to List<Map<String, String>>, where each Map<String, String> in the list represents a record in the file. The key of the map is the header and the value is the actual value of the field. What I have so far: What fur…
Convert Base64 into PDF without converting it into an Image in JAVA
I’ve done converting PNG to PDF using itext. How can i convert BASE64 into a PDF File, how can i achieve this. Thank you Answer You can add b64 image to pdf like this:
Jacoco Maven multi module project coverage
Seems like there are couple of questions, which are quite old and things changed from Java 8 support of Jacoco. My Project contains following structure I have configured the main pom like this Main POM.xml A Pom.xml B pom.xml I am executing this command mvn clean package. I can see jacoco.exec is getting gene…
The type MockitoAnnotations.Mock is deprecated
I am mocking a object using @Mock annotation @Mock Customer customer; but the @Mock annotation is showing warning The type MockitoAnnotations.Mock is deprecated and my test case is failed
Is this qualified as a switch statement?
I have to use this as a switch statement. This is a switch statement, right? if (dGrade > 93.99) {strFGrade= strA;} //A= above 94 else if (dGrade >= 90.00 &…
writing to OutputStream having capacity restriction
Following the question I asked before: I am implementing an ByteArrayOutputStream having capacity restriction. My main limitation is an amount of available memory. So having such stream os: When I write more than say 1MB to the output stream I need to “stop”. I prefer not throw exception but write…