Spring boot application loads all the beans using bean factory. If any error occurred while invoking the java classes, this exception is thrownExceptionException in thread "restartedMain" java.lang.reflect.InvocationTargetException at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)…
The Exactly one of the ‘cron’, ‘fixedDelay(String)’, or ‘fixedRate(String)’ attributes is required exception occurs when an invalid value is provided in cron or fixedDelay(String) or fixedRate(String) in the @Scheduled annotation.…
The spring boot @Scheduled method is not working and throws Application run failed, java.lang.IllegalArgumentException: null exception if the scheduler is configured with an invalid value in the @Scheduled annotation. The…
The spring boot exception Field in required a bean of type that could not be found occurs when a field in the class is auto-wired as a bean type that…
The spring boot exception org.springframework.beans.factory.NoUniqueBeanDefinitionException: No qualifying bean of type available: expected single matching bean but found occurs when the bean is auto-wired that matches two or more loaded beans…
The spring boot exception org.springframework.beans.BeanInstantiationException: Failed to instantiate: Constructor threw exception occurs when the default constructor in a bean throws exception when the bean is created. The bean is auto-wired…
The spring boot exception org.springframework.beans.BeanInstantiationException: Failed to instantiate: No default constructor found occurs when no default constructor is found in a bean when the bean is created. The bean is…
The spring boot exception BeanCurrentlyInCreationException: Error creating bean with name: Requested bean is currently in creation happens when two beans are in circular dependences with each other. If the bean…
The spring boot exception org.springframework.beans.BeanInstantiationException: Failed to instantiate: Factory method threw exception occurs when the abstract class could not find the implemented class while auto-wiring using the factory method. The…
The spring boot exception BeanInstantiationException: Failed to instantiate happens when the bean can’t instantiate when auto-wiring in another bean. If the bean is instantiated in another bean, the bean either…
The spring boot exception org.springframework.beans.factory.BeanCreationException: Error creating bean with name happens when a problem occurs when the BeanFactory creates a bean. If the BeanFactory encounters an error when creating a…
The spring boot exception org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name defined in file: Unsatisfied dependency expressed through field occurs when a problem occurs when a bean auto-wired on other beans…
The spring boot exception Missing URI template variable for method parameter of type String occurs when the path variable name in the @RequestMapping annotation is different from the @PathVariable name. The name of the path variable should be the same in @RequestMapping and @PathVariable. If there is some mismatch, the exception Missing URI template variable for method parameter of type String would be thrown.The path variable is added as part of the request url in the @RequestMapping annotation. The path variable is covered by curly brackets. The path variable is added to the method parameter with a @PathVariable annotation. The name of the method parameter and the name of the path variable should be the same to avoid an exception Missing URI template variable ” for method parameter of type String.ExceptionThe exception Missing URI template variable for method parameter of type String will be shown in the browser as below.Whitelabel Error Page This application has no explicit mapping for /error, so you are seeing this as…
java.lang. IllegalArgumentException: URI is not absolute occurs when a relative url is used to identify the resource. In the spring boot RestTemplate, the complete url will be used to invoke…
org.springframework.jdbc.BadSqlGrammarException: PreparedStatementCallback; bad SQL grammar [SELECT JOB_INSTANCE_ID, JOB_NAME from BATCH_JOB_INSTANCE where JOB_NAME = ? and JOB_KEY = ?]; nested exception is org.h2.jdbc.JdbcSQLSyntaxErrorException: Table "BATCH_JOB_INSTANCE" not found; SQL statement: SELECT JOB_INSTANCE_ID,…
java.sql.SQLSyntaxErrorException: Table ‘dbname.hibernate_sequence’ doesn’t exist error occurs when the hibernate_sequence table does not exist in the database and auto id generation in hibernate is enabled. Hibernate generates and stores the…
java.lang.IllegalArgumentException: jdbcUrl is required with driverClassName error occurs when Hikari could not locate the database url while creating a datasource using database credentials. When Spring Boot tries to create multiple…
The java error: main method not found in the file, please define the main method as: public static void main(string[] args) occurs if the main method not found in class…
Serialize and Deserialize Enum with JSON-B / Yasson is performed in java using json-b or yasson serialization and deserialization. Java enum is a user defined data type that is serialize…
Converting JSON String to Java Object Array is performed using JSON-B in spring boot application. The conversion JSON String to Object in spring boot is explained in detail in the…