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About rollback

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1

NullPointerException while setting a new property value

.getTransaction().isActive()) em.getTransaction().rollback(); em.close
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One transaction or two?

().rollback(); } if(!pm.isClosed()) { pm.close(); } } Should I separate the deletes
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1

Optimistic locking: prevent version increment on entity collection attribute

and we are still in the same transaction (before any commit or rollback). In the debugger, when I check
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1

Removing an entity throws exception

);      em.getTransaction().commit();     }     catch (Exception e) {      em.getTransaction().rollback
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1

Rename Application StringIdentity

.isActive()) transaction.rollback(); } Would the above code keep my persisted object in the ObjectDB
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1

Suspected memleak caused by bad state of EntityManager

.rollback(EMImpl.java:295) ~[EMImpl.class:na] at com.app.dao.impl.ObjectdbExpeditionDAO
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1

Unexpected exception (Error 990)

(); } finally { if (transaction.isActive()) { transaction.rollback(); } } "repository
Issue
1

Unexpected exception (Error 990) - NullPointerException

has been marked for rollback. Why it has been marked was not clear. Thank you again for this report. An error
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1

Working with a cleared cache

().rollback(); } }   [ObjectDB 2.2.9] Unexpected exception (Error 990) Generated by
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1

java 8 LocalDateTime is not working in query

the @Convert annotation defined in the JPA standard, I get an rollback caused by this exception: com