Application ID: 4BAEABFC-6FEF-EB39-FFE3-162B0D48F300
Error UID: E151241E-DA4D-9099-FF0A-A7F073EB5200
Backendless encountered an error while handling the request. An internal trouble ticket with ID E151241E-DA4D-9099-FF0A-A7F073EB5200 has been created and we will be investigating the issue.
class com.backendless.datamodel.application.entity.table.column.UserDataTableColumnEntity cannot be cast to class com.backendless.datamodel.application.entity.table.UserDataTableRelationEntity (com.backendless.datamodel.application.entity.table.column.UserDataTableColumnEntity and com.backendless.datamodel.application.entity.table.UserDataTableRelationEntity are in unnamed module of loader 'app')
java.lang.ClassCastException: class com.backendless.datamodel.application.entity.table.column.UserDataTableColumnEntity cannot be cast to class com.backendless.datamodel.application.entity.table.UserDataTableRelationEntity (com.backendless.datamodel.application.entity.table.column.UserDataTableColumnEntity and com.backendless.datamodel.application.entity.table.UserDataTableRelationEntity are in unnamed module of loader 'app')
at com.backendless.management.impex.manager.ExportDataManager.lambda$getUserDataTableList$9(ExportDataManager.java:219)
at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:195)
at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177)
at java.base/java.util.Iterator.forEachRemaining(Iterator.java:133)
at java.base/java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1801)
at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484)
at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474)
at java.base/java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:913)
at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
at java.base/java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:578)
at com.backendless.management.impex.manager.ExportDataManager.lambda$getUserDataTableList$10(ExportDataManager.java:221)
at com.backendless.datamodel.dao.JpaContext.executeAppSync(JpaContext.java:125)
at com.backendless.datamodel.dao.JpaContext.lambda$executeApp$0(JpaContext.java:150)
at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1700)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
at java.base/java.lang.Thread.run(Thread.java:834)
Suppressed: java.util.concurrent.ExecutionException: java.lang.ClassCastException: class com.backendless.datamodel.application.entity.table.column.UserDataTableColumnEntity cannot be cast to class com.backendless.datamodel.application.entity.table.UserDataTableRelationEntity (com.backendless.datamodel.application.entity.table.column.UserDataTableColumnEntity and com.backendless.datamodel.application.entity.table.UserDataTableRelationEntity are in unnamed module of loader 'app')
at java.base/java.util.concurrent.CompletableFuture.reportGet(CompletableFuture.java:395)
at java.base/java.util.concurrent.CompletableFuture.get(CompletableFuture.java:1999)
at com.backendless.async.UncheckedCompletableFutureImpl.getUnchecked(UncheckedCompletableFutureImpl.java:158)
at com.backendless.management.impex.manager.ExportDataManager.getUserDataTableList(ExportDataManager.java:228)
at com.backendless.management.impex.service.ExportService.getListOfTablesAndViews(ExportService.java:128)
at controllers.console.migration.Export.lambda$getListOfTablesAndViews$0(Export.java:53)
at com.backendless.async.ExecutorService.lambda$submit$0(ExecutorService.java:67)
... 4 more
Problem description
I just tried to open Manage->Export tab and this is what I’ve got