Compiling an Abstract class results in NullPointerException

[westsail42]

Not sure if this is an issue, or if I am not setting up the compilation unit correctly. I am trying to create and compile an abstract class from ANOTHER abstract class, on the fly. Simple inheritance. No interfaces or added fields.

17-20-57 INFO   []: (JavaMemoryCompilerImpl.java:164) - Try to compile: 

 1 | 	package ltmi.nsTCommMapping;
 2 | 	
 3 | 	import com.idisys.rdf.model.core.TCommMapping;
 4 | 	import org.burningwave.core.Virtual;
 5 | 	
 6 | 	public abstract class defaultClass extends TCommMapping implements Virtual { 
 7 | 	
 8 | 	}

17-20-57 ERROR  []: (QueuedTaskExecutor.java:1070) - Exception occurred while executing org.burningwave.core.concurrent.QueuedTaskExecutor$Group$2$1@2bc0b8c8 (Thread[Burningwave - BackgroundExecutor - Normal priority tasks poolable executor,5,main](Runnable)): 
		java.lang.NullPointerException: 
		at org.burningwave.core.classes.SourceCodeHandler.extractClassName(SourceCodeHandler.java:61)
		at org.burningwave.core.classes.JavaMemoryCompilerImpl.sourcesToMemorySources(JavaMemoryCompilerImpl.java:216)
		at org.burningwave.core.classes.JavaMemoryCompilerImpl.lambda$compile$6(JavaMemoryCompilerImpl.java:166)
		at org.burningwave.core.concurrent.QueuedTaskExecutor$ProducerTask.execute0(QueuedTaskExecutor.java:1266)
		at org.burningwave.core.concurrent.QueuedTaskExecutor$TaskAbst.execute(QueuedTaskExecutor.java:1018)
		at org.burningwave.core.concurrent.QueuedTaskExecutor$TaskAbst.lambda$setExecutor$2(QueuedTaskExecutor.java:1130)
		at org.burningwave.core.concurrent.Thread$Poolable.runExecutable(Thread.java:329)
		at org.burningwave.core.concurrent.Thread$Poolable.run(Thread.java:284)
	that was created at:
		at org.burningwave.core.classes.JavaMemoryCompilerImpl.compile(JavaMemoryCompilerImpl.java:163)
		at org.burningwave.core.classes.JavaMemoryCompilerImpl.compile(JavaMemoryCompilerImpl.java:105)
		at org.burningwave.core.classes.ClassFactory$ClassRetriever.getCompilationTask(ClassFactory.java:287)
		at org.burningwave.core.classes.ClassFactory$ClassRetriever.getCompilationResult(ClassFactory.java:295)
		at org.burningwave.core.classes.ClassFactory$ClassRetriever.get(ClassFactory.java:184)
		at com.leclanche.web.ltmi.Utilities.synthesizeLtmiClass(Utilities.java:320)
		at com.leclanche.web.ltmi.Utilities.synthesizeLtmiClass(Utilities.java:283)
		at com.leclanche.web.ltmi.MDSyntheticClassSerializer.serialize(MDSyntheticClassSerializer.java:45)
		at com.leclanche.web.ltmi.MDSyntheticClassSerializer.serialize(MDSyntheticClassSerializer.java:17)
		at com.fasterxml.jackson.databind.ser.DefaultSerializerProvider._serialize(DefaultSerializerProvider.java:480)
		at com.fasterxml.jackson.databind.ser.DefaultSerializerProvider.serializeValue(DefaultSerializerProvider.java:319)
		at com.fasterxml.jackson.databind.ObjectWriter$Prefetch.serialize(ObjectWriter.java:1518)
		at com.fasterxml.jackson.databind.ObjectWriter._writeValueAndClose(ObjectWriter.java:1219)
		at com.fasterxml.jackson.databind.ObjectWriter.writeValueAsString(ObjectWriter.java:1086)
		at com.leclanche.webltmitool.MainCommands.exportSyntheticClass(MainCommands.java:188)
		at com.leclanche.webltmitool.MainCommands.exportTypes(MainCommands.java:171)
		at com.leclanche.webltmitool.MainCommands.export(MainCommands.java:251)
		at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
		at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
		at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
		at java.base/java.lang.reflect.Method.invoke(Method.java:566)
		at org.springframework.shell.command.invocation.InvocableShellMethod.doInvoke(InvocableShellMethod.java:306)
		at org.springframework.shell.command.invocation.InvocableShellMethod.invoke(InvocableShellMethod.java:232)
		at org.springframework.shell.command.CommandExecution$DefaultCommandExecution.evaluate(CommandExecution.java:158)
		at org.springframework.shell.Shell.evaluate(Shell.java:208)
		at org.springframework.shell.Shell.run(Shell.java:140)
		at org.springframework.shell.jline.InteractiveShellRunner.run(InteractiveShellRunner.java:73)
		at org.springframework.shell.DefaultShellApplicationRunner.run(DefaultShellApplicationRunner.java:65)
		at org.springframework.boot.SpringApplication.callRunner(SpringApplication.java:759)
		at org.springframework.boot.SpringApplication.callRunners(SpringApplication.java:749)
		at org.springframework.boot.SpringApplication.run(SpringApplication.java:314)
		at org.springframework.boot.SpringApplication.run(SpringApplication.java:1303)
		at org.springframework.boot.SpringApplication.run(SpringApplication.java:1292)
		at com.leclanche.webltmitool.WebLtmiToolApplication.main(WebLtmiToolApplication.java:12)
com.fasterxml.jackson.databind.JsonMappingException: [no message for java.lang.NullPointerException]
Details of the error have been omitted. You can use the stacktrace command to print the full stacktrace.