Three exceptions in hibernate

Exception 1:

Java. Lang. exceptionininitializererror

Atcom. hibernate. Service. userserviceimpl. <init> (userserviceimpl. Java: 11)

Atcom. hibernate. JUnit. usertest. <init> (usertest. Java: 12)

Atsun. Reflect. nativeconstructoraccessorimpl. newinstance0 (native method)

Atsun. Reflect. nativeconstructoraccessorimpl. newinstance (nativeconstructoraccessorimpl. Java: 39)

Atsun. Reflect. delegatingconstruct%cessorimpl. newinstance (delegatingconstruct%cessorimpl. Java: 27)

Atjava. Lang. Reflect. constructor. newinstance (constructor. Java: 513)

Atorg. JUnit. Runners. blockjunit4classrunner. createtest (blockjunit4classrunner. Java: 202)

Atorg. JUnit. Runners. blockjunit4classrunner $1. runreflectivecall (blockjunit4classrunner. Java: 251)

Atorg. JUnit. Internal. Runners. model. reflectivecallable. Run (reflectivecallable. Java: 15)

Atorg. JUnit. Runners. blockjunit4classrunner. methodblock (blockjunit4classrunner. Java: 248)

Atorg. JUnit. Runners. blockjunit4classrunner. runchild (blockjunit4classrunner. Java: 76)

Atorg. JUnit. Runners. blockjunit4classrunner. runchild (blockjunit4classrunner. Java: 50)

Atorg. JUnit. Runners. parentrunner $ 3.run( parentrunner. Java: 193)

Atorg. JUnit. Runners. parentrunner $1. Schedule (parentrunner. Java: 52)

Atorg. JUnit. Runners. parentrunner. runchildren (parentrunner. Java: 191)

Atorg. JUnit. Runners. parentrunner. Access $000 (parentrunner. Java: 42)

Atorg. JUnit. Runners. parentrunner $2. Evaluate (parentrunner. Java: 184)

Atorg. JUnit. Runners. parentrunner. Run (parentrunner. Java: 236)

Atorg. Eclipse. jdt. Internal. junit4.runner. junit4testreference. Run (junit4testreference. Java: 49)

Atorg. Eclipse. jdt. Internal. JUnit. Runner. testexecution. Run (testexecution. Java: 38)

Atorg. Eclipse. jdt. Internal. JUnit. Runner. remotetestrunner. runtests (remotetestrunner. Java: 467)

Atorg. Eclipse. jdt. Internal. JUnit. Runner. remotetestrunner. runtests (remotetestrunner. Java: 683)

Atorg. Eclipse. jdt. Internal. JUnit. Runner. remotetestrunner. Run (remotetestrunner. Java: 390)

Atorg. Eclipse. jdt. Internal. JUnit. Runner. remotetestrunner. Main (remotetestrunner. Java: 197)

Caused by: org. hibernate. hibernateexception: Missing column: ABC in hibernate. User

Atorg. hibernate. Mapping. Table. validatecolumns (table. Java: 276)

Atorg. hibernate. cfg. configuration. validateschema (configuration. Java: 1343)

Atorg. hibernate. tool. hbm2ddl. schemavalidator. Validate (schemavalidator. Java: 139)

Atorg. hibernate. impl. sessionfactoryimpl. <init> (sessionfactoryimpl. Java: 378)

Atorg. hibernate. cfg. configuration. buildsessionfactory (configuration. Java: 1872)

Atcom. hibernate. Dao. userdaoimpl. <clinit> (userdaoimpl. Java: 23)

... 24 more

Cause of exception:

Verify with validate, add attributes and the corresponding set and get methods for existing tables, and declare them in the ing file, however, due to a change in the table structure, all exceptions are thrown.

 

 

Exception 2:

Java. Lang. exceptionininitializererror

Atcom. hibernate. Service. userserviceimpl. <init> (userserviceimpl. Java: 11)

Atcom. hibernate. JUnit. usertest. <init> (usertest. Java: 12)

Atsun. Reflect. nativeconstructoraccessorimpl. newinstance0 (native method)

Atsun. Reflect. nativeconstructoraccessorimpl. newinstance (nativeconstructoraccessorimpl. Java: 39)

Atsun. Reflect. delegatingconstruct%cessorimpl. newinstance (delegatingconstruct%cessorimpl. Java: 27)

Atjava. Lang. Reflect. constructor. newinstance (constructor. Java: 513)

Atorg. JUnit. Runners. blockjunit4classrunner. createtest (blockjunit4classrunner. Java: 202)

Atorg. JUnit. Runners. blockjunit4classrunner $1. runreflectivecall (blockjunit4classrunner. Java: 251)

Atorg. JUnit. Internal. Runners. model. reflectivecallable. Run (reflectivecallable. Java: 15)

Atorg. JUnit. Runners. blockjunit4classrunner. methodblock (blockjunit4classrunner. Java: 248)

Atorg. JUnit. Runners. blockjunit4classrunner. runchild (blockjunit4classrunner. Java: 76)

Atorg. JUnit. Runners. blockjunit4classrunner. runchild (blockjunit4classrunner. Java: 50)

Atorg. JUnit. Runners. parentrunner $ 3.run( parentrunner. Java: 193)

Atorg. JUnit. Runners. parentrunner $1. Schedule (parentrunner. Java: 52)

Atorg. JUnit. Runners. parentrunner. runchildren (parentrunner. Java: 191)

Atorg. JUnit. Runners. parentrunner. Access $000 (parentrunner. Java: 42)

Atorg. JUnit. Runners. parentrunner $2. Evaluate (parentrunner. Java: 184)

Atorg. JUnit. Runners. parentrunner. Run (parentrunner. Java: 236)

Atorg. Eclipse. jdt. Internal. junit4.runner. junit4testreference. Run (junit4testreference. Java: 49)

Atorg. Eclipse. jdt. Internal. JUnit. Runner. testexecution. Run (testexecution. Java: 38)

Atorg. Eclipse. jdt. Internal. JUnit. Runner. remotetestrunner. runtests (remotetestrunner. Java: 467)

Atorg. Eclipse. jdt. Internal. JUnit. Runner. remotetestrunner. runtests (remotetestrunner. Java: 683)

Atorg. Eclipse. jdt. Internal. JUnit. Runner. remotetestrunner. Run (remotetestrunner. Java: 390)

Atorg. Eclipse. jdt. Internal. JUnit. Runner. remotetestrunner. Main (remotetestrunner. Java: 197)

Caused by: org. hibernate. hibernateexception: Unable to instantiate default tuplizer

[Org. hibernate. tuple. entity. pojoentitytuplizer]

Atorg. hibernate. tuple. entity. entitytuplizerfactory. constructtuplizer (entitytuplizerfactory. Java: 108)

Atorg. hibernate. tuple. entity. entitytuplizerfactory. constructdefaulttuplizer (entitytuplizerfactory. Java: 133)

Atorg. hibernate. tuple. entity. entityentitymodetotuplizermapping. <init> (entityentitymodetotuplizermapping. Java: 80)

Atorg. hibernate. tuple. entity. entitymetamodel. <init> (entitymetamodel. Java: 322)

Atorg. hibernate. persister. entity. abstractentitypersister. <init> (abstractentitypersister. Java: 485)

Atorg. hibernate. persister. entity. singletableentitypersister. <init> (singletableentitypersister. Java: 133)

Atorg. hibernate. persister. persisterfactory. createclasspersister (persisterfactory. Java: 84)

Atorg. hibernate. impl. sessionfactoryimpl. <init> (sessionfactoryimpl. Java: 286)

Atorg. hibernate. cfg. configuration. buildsessionfactory (configuration. Java: 1872)

Atcom. hibernate. Dao. userdaoimpl. <clinit> (userdaoimpl. Java: 23)

... 24 more

Caused by: Java. Lang. Reflect. invocationtargetexception

Atsun. Reflect. nativeconstructoraccessorimpl. newinstance0 (native method)

Atsun. Reflect. nativeconstructoraccessorimpl. newinstance (nativeconstructoraccessorimpl. Java: 39)

Atsun. Reflect. delegatingconstruct%cessorimpl. newinstance (delegatingconstruct%cessorimpl. Java: 27)

Atjava. Lang. Reflect. constructor. newinstance (constructor. Java: 513)

Atorg. hibernate. tuple. entity. entitytuplizerfactory. constructtuplizer (entitytuplizerfactory. Java: 105)

... 33 more

Caused by: org. hibernate. propertynotfoundexception: cocould not find a getter for birthdayin class

Com. hibernate. domain. User

Atorg. hibernate. Property. basicpropertyaccessor. creategetter (basicpropertyaccessor. Java: 326)

Atorg. hibernate. Property. basicpropertyaccessor. getgetter (basicpropertyaccessor. Java: 320)

Atorg. hibernate. Mapping. Property. getgetter (property. Java: 304)

Atorg. hibernate. tuple. entity. pojoentitytuplizer. buildpropertygetter (pojoentitytuplizer. Java: 297)

Atorg. hibernate. tuple. entity. abstractentitytuplizer. <init> (abstractentitytuplizer. Java: 155)

Atorg. hibernate. tuple. entity. pojoentitytuplizer. <init> (pojoentitytuplizer. Java: 77)

... 38 more

Cause of exception:

The property privatedate birthday is defined in user. Java;

Define birthday in user. HBM. xml: <propertyname = "Birthday"/>

However, the set and get methods corresponding to birthday are not written in user. java.

 

 

Exception 3:

Exception in thread "Main" Java. Lang. exceptionininitializererror

Atcom. hbsi. Test. manytow.add (manytow.java: 31)

Atcom. hbsi. Test. manytow.main (manytow.java: 21)

Caused by: org. hibernate. mappingexception: An association from the table teacher_student refers to an unmapped class: COM. hbsi. domain. Teacher

Atorg. hibernate. cfg. configuration. secondpasscompileforeignkeys (configuration. Java: 1824)

Atorg. hibernate. cfg. configuration. originalsecondpasscompile (configuration. Java: 1756)

Atorg. hibernate. cfg. configuration. secondpasscompile (configuration. Java: 1423)

Atorg. hibernate. cfg. configuration. buildsessionfactory (configuration. Java: 1856)

Atcom. hbsi. hibernate. utils. hibernateutil. <clinit> (hibernateutil. Java: 19)

... 2 more

This error occursCauseIs in student. HBM. xml

<Setname = "Teachers" table = "teacher_student">

<Keycolumn = "student_id"> </key>

<Role-to-manyclass = "teacher" column = "teacher_id"/>

</Set>

Write the teacher in class = "teacher" as a teacher.

In addition to these three minor exceptions, there may be many exceptions due to carelessness. For example, this morning I thought there were no errors in the configuration file and the ing file, but it was an exception during initialization. It took only half a day to know that it was because