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.getSingleResult() or () Returns the cause of this throwable or null if the cause is nonexistent or unknown.

may be thrown as part of an API call, at, flush or at commit time. The current transaction, if one is active ... > () Returns the cause of this throwable or null if the cause is nonexistent or unknown.

.getSingleResult() or () Returns the cause of this throwable or null if the cause is nonexistent or unknown.

when an optimistic locking conflict occurs. This exception may be thrown as part of an API call, a flush or ... > () Returns the cause of this throwable or null if the cause is nonexistent or unknown.

declared by the entity or mapped superclass. or mapped superclass. or if the identifiable type has an id class

when an pessimistic locking conflict occurs. This exception may be thrown as part of an API call, a flush or ... > () Returns the cause of this throwable or null if the cause is nonexistent or unknown.

, new, deleted, or detached; and to get its associated PersistenceManager, object identity ... , or might be generated from a tool directly. The exact technique for generating the extra methods ... if the jdoFlags setting is not READ_OK or READ_WRITE_OK.

caused by exceptions thrown during execution of callbacks or listeners. or more stack frames from the stack trace. In ... is constructed or deserialized when a throwable is read from a serialization stream.

"> Returns the cause of this throwable or null if the cause is nonexistent or unknown. Returns the cause of this throwable or null if the cause is nonexistent or

the sequence. Some virtual machines may, under some circumstances, omit one or more stack ... > when a throwable is constructed or deserialized when a throwable is read from ... > is null , or if any of the elements of stackTrace