[EDM] NPE when creating schema with Report entity

[iliyan-velichkov]

Even If I manually fix the generated schema JSON which is described here, the schema cannot be created due to

2024-04-05 14:53:39.219 [ERROR] [pool-2-thread-1] [background] o.e.d.c.i.s.SynchronizationProcessor - Cannot invoke "com.google.gson.JsonElement.getAsString()" because the return value of "com.google.gson.JsonObject.get(String)" is null
java.lang.NullPointerException: Cannot invoke "com.google.gson.JsonElement.getAsString()" because the return value of "com.google.gson.JsonObject.get(String)" is null
	at org.eclipse.dirigible.components.data.structures.synchronizer.SchemasSynchronizer.parseSchema(SchemasSynchronizer.java:239) ~[dirigible-components-data-structures-11.0.0-SNAPSHOT.jar!/:na]
	at org.eclipse.dirigible.components.data.structures.synchronizer.SchemasSynchronizer.parse(SchemasSynchronizer.java:130) ~[dirigible-components-data-structures-11.0.0-SNAPSHOT.jar!/:na]
	at org.eclipse.dirigible.components.initializers.synchronizer.SynchronizationProcessor.parseDefinitions(SynchronizationProcessor.java:492) ~[dirigible-components-core-initializers-11.0.0-SNAPSHOT.jar!/:na]
	at org.eclipse.dirigible.components.initializers.synchronizer.SynchronizationProcessor.processSynchronizers(SynchronizationProcessor.java:192) ~[dirigible-components-core-initializers-11.0.0-SNAPSHOT.jar!/:na]
	at org.eclipse.dirigible.components.initializers.synchronizer.SynchronizationJobService.executeSynchronizationJob(SynchronizationJobService.java:53) ~[dirigible-components-core-initializers-11.0.0-SNAPSHOT.jar!/:na]
	at org.eclipse.dirigible.components.initializers.synchronizer.SynchronizationJob.lambda$execute$0(SynchronizationJob.java:117) ~[dirigible-components-core-initializers-11.0.0-SNAPSHOT.jar!/:na]
	at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:572) ~[na:na]
	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:317) ~[na:na]
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144) ~[na:na]
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642) ~[na:na]
	at java.base/java.lang.Thread.run(Thread.java:1583) ~[na:na]
2024-04-05 14:53:39.252 [ERROR] [pool-2-thread-1] [background] o.e.d.c.i.s.SynchronizationProcessor - Error occured during synchronization: [Cannot invoke "com.google.gson.JsonElement.getAsString()" because the return value of "com.google.gson.JsonObject.get(String)" is null]

Exception line here
It looks like referencedTable is null but this is not expected.

[ThuF]

It seems that there were some issues with the model as commented here: #3739 (comment)
Once fixed, the generation should be executed successfully without exceptions.