How to ignore columns class fields in Hibernate Missing column: in databasetable


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Caused by: org.hibernate.HibernateException: Missing column: test in databasetable
at org.hibernate.mapping.Table.validateColumns(Table.java:276)
at org.hibernate.cfg.Configuration.validateSchema(Configuration.java:1313)
at org.hibernate.tool.hbm2ddl.SchemaValidator.validate(SchemaValidator.java:139)
at org.hibernate.impl.SessionFactoryImpl.<init>(SessionFactoryImpl.java:378)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1842)
at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:902)
… 61 more

Solution is adding @Transient to column like as below;

@Transient
private String test;

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How to create effective pom.xml in Maven (merge parent pom with modules)


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If you would like to create an effective pom.xml (merged pom.xml) file based on parent pom.xml and modules;
Use the following command in order to display and save it as a file;

inside module project type

mvn help:effective-pom -Doutput=mergedpom.xml

ERROR LazyInitializationException:42 – failed to lazily initialize a collection of role no session or session was closed org.hibernate.LazyInitializationException


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19 aug 2015 10:03:24,448 ERROR LazyInitializationException:42 – failed to lazily initialize a collection of role: class, no session or session was closed
org.hibernate.LazyInitializationException: failed to lazily initialize a collection of role: class, no session or session was closed
at org.hibernate.collection.AbstractPersistentCollection.throwLazyInitializationException(AbstractPersistentCollection.java:383)
at org.hibernate.collection.AbstractPersistentCollection.throwLazyInitializationExceptionIfNotConnected(AbstractPersistentCollection.java:375)

Solution on JUnit tests

@Test
@Transactional

And @Entity level use fetch = FetchType.EAGER

@OneToMany(mappedBy = "groups", fetch = FetchType.EAGER)

java.lang.Exception: No runnable methods at org.junit.runners.BlockJUnit4ClassRunner


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Solution
use @Test on JUnit methods

java.lang.Exception: No runnable methods
at org.junit.runners.BlockJUnit4ClassRunner.validateInstanceMethods(BlockJUnit4ClassRunner.java:171)
at org.junit.runners.BlockJUnit4ClassRunner.collectInitializationErrors(BlockJUnit4ClassRunner.java:115)
at org.junit.runners.ParentRunner.validate(ParentRunner.java:269)
at org.junit.runners.ParentRunner.(ParentRunner.java:66)
at org.junit.runners.BlockJUnit4ClassRunner.(BlockJUnit4ClassRunner.java:59)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.(SpringJUnit4ClassRunner.java:104)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
at org.junit.internal.builders.AnnotatedBuilder.buildRunner(AnnotatedBuilder.java:31)
at org.junit.internal.builders.AnnotatedBuilder.runnerForClass(AnnotatedBuilder.java:24)
at org.junit.runners.model.RunnerBuilder.safeRunnerForClass(RunnerBuilder.java:57)
at org.junit.internal.builders.AllDefaultPossibilitiesBuilder.runnerForClass(AllDefaultPossibilitiesBuilder.java:29)
at org.junit.runners.model.RunnerBuilder.safeRunnerForClass(RunnerBuilder.java:57)
at org.junit.internal.requests.ClassRequest.getRunner(ClassRequest.java:24)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestLoader.createUnfilteredTest(JUnit4TestLoader.java:84)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestLoader.createTest(JUnit4TestLoader.java:70)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestLoader.loadTests(JUnit4TestLoader.java:43)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:444)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)

org.hibernate.JDBCException: Error during import script execution


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Hibernate by default tries to import SQLs under (classpath);
resources folder named as import.sql;

So you should edit the content of this SQL file.

17 aug 2015 17:05:27,027 INFO SchemaExport:348 – Executing import script: /import.sql
17 aug 2015 17:05:27,030 ERROR SchemaExport:287 – schema export unsuccessful
org.hibernate.JDBCException: Error during import script execution at line 1
at org.hibernate.tool.hbm2ddl.SchemaExport.importScript(SchemaExport.java:370)
at org.hibernate.tool.hbm2ddl.SchemaExport.execute(SchemaExport.java:276)
at org.hibernate.tool.hbm2ddl.SchemaExport.create(SchemaExport.java:219)
at org.hibernate.impl.SessionFactoryImpl.(SessionFactoryImpl.java:372)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1842)
at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:902)