Spring MVC Controller provides simple but great way for creating Web Application using Java technology. Spring gives developer to ease of development using MVC design pattern. MVC stands for Mode-View-Controller, in this approach we can divide out software development into 3 layers namely Model, View, and Controller. Model layer is responsible for data related works, […]
New features in Java 10
Recently Oracle has announced the general availability of new features in Java 10 (JDK 10) on Mar 20, 2018. We can download Production-ready binaries of JDK 10 under the GPL from: Oracle [ http://www.oracle.com/technetwork/java/javase/downloads/jdk10-downloads-4416644.html ] OpenJDK [ http://jdk.java.net/10/ ] Oracle has now shifted to a 6 months’ release pattern. Therefore, users will not be getting […]
Write to file in Java
This tutorial would be focusing on different ways of write to file using Java. Stream is a general mechanism of I/O in java. Stream provides sequential access of data. An input stream can be used by an application to read data. An output stream to write data. A file, network connection, arrays can act as […]
Java 8 flatMap examples
We would be looking at flatMap method in Java 8 streams and Optional. In our last tutorial we looked at map method in Java 8 stream example. Let us start with the examples 1. Flatten a List<List<String>> to List<String> using flatMap Here we have two lists, a list of front-end languages and a list of […]
Java 8 map method Examples
In Java 8 streams map() method is one of the most important and the widely used methods of streams. In this tutorial, we would be looking at various ways we can use map method. These examples can help you understand the usage of Java 8 stream map() method. The javadocs describes the example:() method as: […]
Command Pattern with Java examples
This pattern falls under the behavioral design pattern category. In this pattern, the information inside one request is mapped to a single object and then that object is used as required. It encapsulates a whole request as an object called ‘Command’. The ‘Command’ can be identified as a materialized method call. That object often contains […]
Sort Hashmap in Java with examples
The purpose of HashMap isn’t to keep entries in a sorted order, but Java provides you the option to sort HashMap on the basis of values or keys. To sort HashMap based on keys, all that is needed is creating a TreeMap by copying entries from the desired HashMap. One can implement SortedMap by TreeMap […]
What is Bridge Design Pattern?
Bridge Design Pattern falls under the structural design pattern category. This pattern focuses on a limitation in the concept of abstraction. In the context of Java, we use inheritance to develop the concept of abstraction. Several implementation deviations support to achieve the inheritance. However, this permanently binds the implementation to the abstraction limiting the flexibility. […]
What is Adapter Design Pattern?
Adapter design pattern falls under the category of the structural design pattern. The main intention of the Adapter pattern is to make two incompatible interfaces compatible so that two different systems can inter-communicate. Two different systems have completely different interfaces to communicate with outside. The underlying classes or objects will not change but there is […]
Error: BeanDefinitionStoreException failed to read candidate component class
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Caused by: org.springframework.beans.factory.BeanDefinitionStoreException: Failed to read candidate component class: file [MyClass.class]; nested exception is java.lang.ArrayIndexOutOfBoundsException: 11315 at org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider.findCandidateComponents(ClassPathScanningCandidateComponentProvider.java:261) at org.springframework.context.annotation.ClassPathBeanDefinitionScanner.doScan(ClassPathBeanDefinitionScanner.java:242) at org.springframework.context.annotation.ComponentScanBeanDefinitionParser.parse(ComponentScanBeanDefinitionParser.java:84) at org.springframework.beans.factory.xml.NamespaceHandlerSupport.parse(NamespaceHandlerSupport.java:73) at org.springframework.beans.factory.xml.BeanDefinitionParserDelegate.parseCustomElement(BeanDefinitionParserDelegate.java:1419) |
Following are some of the things that you can check: Cause 1: Compatibility between Java and Spring In this program, the use of Spring 3 has been done but Java 8 is compatible with Spring framework 4.0. The spring framework 4.0 have something known as functional interfaces which are compatible with Java 8. The […]