I am running BaseX 7.9 (yes I know its old but for reasons beyond the scope of this we can't just update BaseX) on RHEL 6.9.
The BaseX is not running any instance as a server but as a standalone application with its libraries being used with my java application.
I am able to add new files to the database, but when I run an XQuery I get the following output:
*error running xquery: declare namespace tr = '[query]org.basex.core.BaseXException: Improper use? Potential bug? Your feedback is welcome:* *Contact: basex-talk@mailman.uni-konstanz.de basex-talk@mailman.uni-konstanz.de* *Version: BaseX 7.9* *Java: Oracle Corporation, 1.8.0_131* *OS: Windows 7, amd64* *Stack Trace: * *java.lang.RuntimeException: Data Access out of bounds:* *- pre value: 5813546* *- #used blocks: 22710* *- #total locks: 22710* *- access: 22709 (22710 > 22709]* *at org.basex.util.Util.notExpected(Util.java:53)* *at org.basex.io.random.TableDiskAccess.cursor(TableDiskAccess.java:508)* *at org.basex.io.random.TableDiskAccess.read1(TableDiskAccess.java:194)* *at org.basex.data.Data.kind(Data.java:284)* *at org.basex.query.value.node.DBNode$5.next(DBNode.java:353)* *at org.basex.query.value.node.DBNode$5.next(DBNode.java:345)* *at org.basex.query.path.IterStep$1.next(IterStep.java:39)* *at org.basex.query.path.IterStep$1.next(IterStep.java:31)* *at org.basex.query.path.MixedPath.iter(MixedPath.java:99)* *at org.basex.query.gflwor.GFLWOR$2.next(GFLWOR.java:78)* *at org.basex.query.MainModule$1.next(MainModule.java:98)* *at org.basex.core.cmd.AQuery.query(AQuery.java:96)* *at org.basex.core.cmd.XQuery.run(XQuery.java:22)* *at org.basex.core.Command.run(Command.java:329)* *at org.basex.core.Command.execute(Command.java:94)* *at org.basex.core.Command.execute(Command.java:117)* *at basex_debug.Corrupt_DB_Test.queryTestResultsUUID(Corrupt_DB_Test.java:114)* *at basex_debug.Corrupt_DB_Test.checkIfAlreadyAdded(Corrupt_DB_Test.java:48)* *at basex_debug.Corrupt_DB_Test.addToDatabase(Corrupt_DB_Test.java:64)*
* at basex_debug.Corrupt_DB_Test.main(Corrupt_DB_Test.java:23)*
The query was running fine before so I know there is not a problem with the query, I have only read about the database getting corrupt with BaseX when ran in Server and Client mode.
What may be causing this problem and what are some possible solutions?