[BUG] - improve error message

[NicolasRouquette]

Description

A clear and concise description of what the bug is.

The OML 0.9.0 validation on save is useful; however, it lacks enough context to trace the error to a precise location in the OML model.

example:

2021-09-29 16:17:02 INFO  App$:97 - Saving oml/omlxmi file for Description: http://europa.jpl.nasa.gov/efse/flightsystem/decomposition/functional/power...
2021-09-29 16:17:02 INFO  App$:100 - -saved file for Description: http://europa.jpl.nasa.gov/efse/flightsystem/decomposition/functional/power
2021-09-29 16:17:02 INFO  App$:97 - Saving oml/omlxmi file for Vocabulary: http://europa.jpl.nasa.gov/efse/libraries/EuropaTypes...
Exception in thread "main" java.lang.RuntimeException: Error while converting value '"""""""""""""PMETLM_MUX0_prt[0-14]_of_prt[0][0]"^^xsd:string
PMETLM_MUX0_prt[0-14]_of_prt[1][1]"
PMETLM_MUX0_prt[0-14]_of_prt[2][2]"
PMETLM_MUX0_prt[0-14]_of_prt[3][3]"
PMETLM_MUX0_prt[0-14]_of_prt[4][4]"
PMETLM_MUX0_prt[0-14]_of_prt[5][5]"
PMETLM_MUX0_prt[0-14]_of_prt[6][6]"
PMETLM_MUX0_prt[0-14]_of_prt[7][7]"
PMETLM_MUX0_prt[0-14]_of_prt[8][8]"
PMETLM_MUX0_prt[0-14]_of_prt[9][9]"
PMETLM_MUX0_prt[0-14]_of_prt[10][10]"
PMETLM_MUX0_prt[0-14]_of_prt[11][11]"
PMETLM_MUX0_prt[0-14]_of_prt[12][12]"
PMETLM_MUX0_prt[0-14]_of_prt[13][13]' for grammar rule 'STRING' to string via ValueConverter.
Caused By: org.eclipse.xtext.conversion.ValueConverterException: The value '"""""""""""""PMETLM_MUX0_prt[0-14]_of_prt[0][0]"^^xsd:string
PMETLM_MUX0_prt[0-14]_of_prt[1][1]"
PMETLM_MUX0_prt[0-14]_of_prt[2][2]"
PMETLM_MUX0_prt[0-14]_of_prt[3][3]"
PMETLM_MUX0_prt[0-14]_of_prt[4][4]"
PMETLM_MUX0_prt[0-14]_of_prt[5][5]"
PMETLM_MUX0_prt[0-14]_of_prt[6][6]"
PMETLM_MUX0_prt[0-14]_of_prt[7][7]"
PMETLM_MUX0_prt[0-14]_of_prt[8][8]"
PMETLM_MUX0_prt[0-14]_of_prt[9][9]"
PMETLM_MUX0_prt[0-14]_of_prt[10][10]"
PMETLM_MUX0_prt[0-14]_of_prt[11][11]"
PMETLM_MUX0_prt[0-14]_of_prt[12][12]"
PMETLM_MUX0_prt[0-14]_of_prt[13][13]' is an invalid STRING
Semantic Object: Vocabulary.ownedStatements[64]->Concept'ID_4JJRt3LLASAuo2feJ2nVQpw4gvDwPcAjCRAkgC3Q8T1JBsBWMWMnyjk'.ownedAnnotations[1]->Annotation.value->QuotedLiteral
URI: file:/data/outputs/process/normalized/src/oml/europa.jpl.nasa.gov/efse/libraries/EuropaTypes.oml
EStructuralFeature: oml::QuotedLiteral.value
	at org.eclipse.xtext.serializer.diagnostic.ISerializationDiagnostic$ExceptionThrowingAcceptor.accept(ISerializationDiagnostic.java:130)
	at org.eclipse.xtext.serializer.tokens.ValueSerializer.serializeAssignedValue(ValueSerializer.java:83)
	at org.eclipse.xtext.serializer.acceptor.SequenceFeeder.getToken(SequenceFeeder.java:491)
	at org.eclipse.xtext.serializer.acceptor.SequenceFeeder.accept(SequenceFeeder.java:246)
	at org.eclipse.xtext.serializer.sequencer.BacktrackingSemanticSequencer.accept(BacktrackingSemanticSequencer.java:452)
	at org.eclipse.xtext.serializer.sequencer.BacktrackingSemanticSequencer.createSequence(BacktrackingSemanticSequencer.java:512)
	at io.opencaesar.oml.dsl.serializer.OmlSemanticSequencer.sequence_QuotedLiteral(OmlSemanticSequencer.java:957)
	at io.opencaesar.oml.dsl.serializer.OmlSemanticSequencer.sequence(OmlSemanticSequencer.java:206)
	at org.eclipse.xtext.serializer.sequencer.AbstractSemanticSequencer.createSequence(AbstractSemanticSequencer.java:68)
	at org.eclipse.xtext.serializer.acceptor.SequenceFeeder.acceptEObjectRuleCall(SequenceFeeder.java:327)
	at org.eclipse.xtext.serializer.acceptor.SequenceFeeder.acceptRuleCall(SequenceFeeder.java:354)
	at org.eclipse.xtext.serializer.acceptor.SequenceFeeder.accept(SequenceFeeder.java:248)
	at org.eclipse.xtext.serializer.sequencer.BacktrackingSemanticSequencer.accept(BacktrackingSemanticSequencer.java:452)
	at org.eclipse.xtext.serializer.sequencer.BacktrackingSemanticSequencer.createSequence(BacktrackingSemanticSequencer.java:512)
	at io.opencaesar.oml.dsl.serializer.OmlSemanticSequencer.sequence_Annotation(OmlSemanticSequencer.java:376)
	at io.opencaesar.oml.dsl.serializer.OmlSemanticSequencer.sequence(OmlSemanticSequencer.java:116)
	at org.eclipse.xtext.serializer.sequencer.AbstractSemanticSequencer.createSequence(AbstractSemanticSequencer.java:68)
	at org.eclipse.xtext.serializer.acceptor.SequenceFeeder.acceptEObjectRuleCall(SequenceFeeder.java:327)
	at org.eclipse.xtext.serializer.acceptor.SequenceFeeder.acceptRuleCall(SequenceFeeder.java:354)
	at org.eclipse.xtext.serializer.acceptor.SequenceFeeder.accept(SequenceFeeder.java:265)
	at org.eclipse.xtext.serializer.sequencer.BacktrackingSemanticSequencer.accept(BacktrackingSemanticSequencer.java:445)
	at org.eclipse.xtext.serializer.sequencer.BacktrackingSemanticSequencer.createSequence(BacktrackingSemanticSequencer.java:512)
	at io.opencaesar.oml.dsl.serializer.OmlSemanticSequencer.sequence_Concept(OmlSemanticSequencer.java:574)
	at io.opencaesar.oml.dsl.serializer.OmlSemanticSequencer.sequence(OmlSemanticSequencer.java:134)
	at org.eclipse.xtext.serializer.sequencer.AbstractSemanticSequencer.createSequence(AbstractSemanticSequencer.java:68)
	at org.eclipse.xtext.serializer.acceptor.SequenceFeeder.acceptEObjectRuleCall(SequenceFeeder.java:327)
	at org.eclipse.xtext.serializer.acceptor.SequenceFeeder.acceptRuleCall(SequenceFeeder.java:354)
	at org.eclipse.xtext.serializer.acceptor.SequenceFeeder.accept(SequenceFeeder.java:265)
	at org.eclipse.xtext.serializer.sequencer.BacktrackingSemanticSequencer.accept(BacktrackingSemanticSequencer.java:445)
	at org.eclipse.xtext.serializer.sequencer.BacktrackingSemanticSequencer.createSequence(BacktrackingSemanticSequencer.java:512)
	at io.opencaesar.oml.dsl.serializer.OmlSemanticSequencer.sequence_Vocabulary(OmlSemanticSequencer.java:1701)
	at io.opencaesar.oml.dsl.serializer.OmlSemanticSequencer.sequence(OmlSemanticSequencer.java:302)
	at org.eclipse.xtext.serializer.sequencer.AbstractSemanticSequencer.createSequence(AbstractSemanticSequencer.java:68)
	at org.eclipse.xtext.serializer.impl.Serializer.serialize(Serializer.java:122)
	at org.eclipse.xtext.serializer.impl.Serializer.serializeToRegions(Serializer.java:144)
	at org.eclipse.xtext.serializer.impl.Serializer.serialize(Serializer.java:150)
	at org.eclipse.xtext.serializer.impl.Serializer.serialize(Serializer.java:202)
	at org.eclipse.xtext.resource.XtextResource.doSave(XtextResource.java:387)
	at org.eclipse.emf.ecore.resource.impl.ResourceImpl.save(ResourceImpl.java:1475)
	at org.eclipse.emf.ecore.resource.impl.ResourceImpl.save(ResourceImpl.java:1044)
	at gov.nasa.jpl.imce.caesar.oml.adapter.app.App$.$anonfun$tryRun$2(App.scala:99)
	at gov.nasa.jpl.imce.caesar.oml.adapter.app.App$.$anonfun$tryRun$2$adapted(App.scala:96)
	at scala.collection.immutable.BitmapIndexedSetNode.foreach(HashSet.scala:937)
	at scala.collection.immutable.HashSet.foreach(HashSet.scala:944)
	at gov.nasa.jpl.imce.caesar.oml.adapter.app.App$.tryRun(App.scala:96)
	at gov.nasa.jpl.imce.caesar.oml.adapter.app.App$.run(App.scala:37)
	at gov.nasa.jpl.imce.caesar.oml.adapter.app.App$.main(App.scala:31)
	at gov.nasa.jpl.imce.caesar.oml.adapter.app.App.main(App.scala)
Caused by: org.eclipse.xtext.conversion.ValueConverterException: The value '"""""""""""""PMETLM_MUX0_prt[0-14]_of_prt[0][0]"^^xsd:string
PMETLM_MUX0_prt[0-14]_of_prt[1][1]"
PMETLM_MUX0_prt[0-14]_of_prt[2][2]"
PMETLM_MUX0_prt[0-14]_of_prt[3][3]"
PMETLM_MUX0_prt[0-14]_of_prt[4][4]"
PMETLM_MUX0_prt[0-14]_of_prt[5][5]"
PMETLM_MUX0_prt[0-14]_of_prt[6][6]"
PMETLM_MUX0_prt[0-14]_of_prt[7][7]"
PMETLM_MUX0_prt[0-14]_of_prt[8][8]"
PMETLM_MUX0_prt[0-14]_of_prt[9][9]"
PMETLM_MUX0_prt[0-14]_of_prt[10][10]"
PMETLM_MUX0_prt[0-14]_of_prt[11][11]"
PMETLM_MUX0_prt[0-14]_of_prt[12][12]"
PMETLM_MUX0_prt[0-14]_of_prt[13][13]' is an invalid STRING
	at org.eclipse.xtext.conversion.impl.AbstractLexerBasedConverter.createTokenContentMismatchException(AbstractLexerBasedConverter.java:83)
	at org.eclipse.xtext.conversion.impl.AbstractLexerBasedConverter.assertTokens(AbstractLexerBasedConverter.java:74)
	at org.eclipse.xtext.conversion.impl.AbstractLexerBasedConverter.assertTokens(AbstractLexerBasedConverter.java:59)
	at org.eclipse.xtext.conversion.impl.AbstractLexerBasedConverter.toString(AbstractLexerBasedConverter.java:50)
	at org.eclipse.xtext.conversion.impl.AbstractDeclarativeValueConverterService.toString(AbstractDeclarativeValueConverterService.java:75)
	at org.eclipse.xtext.serializer.tokens.ValueSerializer.serializeAssignedValue(ValueSerializer.java:75)
	... 46 more

The location in the model is reported as follows:

Semantic Object: Vocabulary.ownedStatements[64]->Concept'ID_4JJRt3LLASAuo2feJ2nVQpw4gvDwPcAjCRAkgC3Q8T1JBsBWMWMnyjk'.ownedAnnotations[1]->Annotation.value->QuotedLiteral
URI: file:/data/outputs/process/normalized/src/oml/europa.jpl.nasa.gov/efse/libraries/EuropaTypes.oml
EStructuralFeature: oml::QuotedLiteral.value

Given that there are potentially many annotations, reporting its position in the ownedAnnotations container is insufficient.
Suggest reporting what is the annotation property involved.

Steps to Reproduce

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• Step 1
• Step 2
• Step 3

Expected Behavior

A clear and concise description of what should be the expected behavior.

Additional Context

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