I’m trying to run the sample project with this library and I get the following error: I’ve added commons-lang-2.6.jar & commons-lang3-3.1-sources.jar in libs and classpath Main class: I have referred to the following links: java.lang.ClassNotFoundException: org.apache.commons.lang.StringUtils …
Spring Boot ConflictingBeanDefinitionException: Annotation-specified bean name for @Controller class
I keep getting the ConflictingBeanDefinitionException error in my Spring boot application. I am not entirely sure as to how to address it, I have several @Configuration annotated classes helping to set up Thymeleaf, Spring Security and Web. Why is the application trying to setup the homeController twice? (and…
“Could not find acceptable representation” using spring-boot-starter-web
I am trying to use spring-boot-starter-web to create a rest service serving up JSON representations of Java objects. From what I understand this boot-starter-web jar is supposed to handle the conversion to JSON through Jackson automatically but I am instead getting this error. My Controller is this… My …
antlr4 – get left and right sibling of rule context
An easy question, on which I cannot find something useful in the API docs: is there a way to get the left and right sibling of a ParserRuleContext? Say I have in my .g4: identifiers : identifier (‘,’…
Gradle build failing after updating to Gradle 1.2.2
I have a java project that utilizes Gradle for testing and building. I recently had to update my JVM to 1.7.0_75 to use Maven for another project for work. Now I have gone back to my Gradle project, I found that gradle -v was returning command not found, and after I used brew install Gradle, my build script r…
selenium webdriver move slider on left side
I want to move slider on left side of slider-bar. However, selenium webdriver moves it to right side but it does not move to left side. I want to move slider to 25% of total width of slider-bar. I am using below given code with java 1.8 with selenium 2.44. I have tried all the option using up,down,left,right …
Spring Boot Program cannot find main class
I have a program which runs as a Spring boot App in eclipse. The program was running fine. Then i did the following: Right click on project -> Run As -> Maven Test . This was accidental. When i then tried to run the program as a spring boot app again, it threw the following error below. Error: Could not
How do i output this correctly
So i managed to create this program but im struggling to output the boolean lessThan and greatherThan. I tried to create the strings str1 and str2 and mess around with them but i can’t get it to work. New to java, sorry! Answer Replace str1.to.lowerCase() the same way you did for str2… so `str1.to…
“Expected BEGIN_OBJECT but was STRING at line 1 column 1”
I have this method: And I want to parse a JSON with: But I get an error message: com.google.gson.JsonSyntaxException: java.lang.IllegalStateException: Expected BEGIN_OBJECT but was STRING at line 1 column 1 Answer Even without seeing your JSON string you can tell from the error message that it is not the corr…
When and why would you use Java’s Supplier and Consumer interfaces?
As a non-Java programmer learning Java, I am reading about Supplier and Consumer interfaces at the moment. And I can’t wrap my head around their usage and meaning. When and why you would use these interfaces? Can someone give me a simple layperson example of this? I’m finding the Doc examples not …