[NETBEANS-5214] AssertionError when scanning certain projects (CSS parser problem)

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: Next
• Fix Version/s: 12.3
• Component/s: editor - Parsing & Indexing, web - CSS Editor
• Labels: pull-request-available

Environment

Windows 10 64-bit, Oracle JDK 1.8 and OpenJDK 11.0.6

• Assignee: Matthias Bläsing
• Reporter: Michal Koscielny
• Created: 04/Jan/21 17:33
• Updated: 05/Feb/21 21:03
• Resolved: 05/Jan/21 18:05

Description

(Regards build #226 20210103-release)

When scanning certain projects for the first time Netbeans reports a java.lang.AssertionError, it looks like it's caused by the css parser. The error does not reappear when opening the project for the second time, but when I delete the Netbeans cache folder the scanning happens again and the error reappears.

I attach a simple project to reproduce it - it essentially contains only tinymce editor library, I suspect one of its minimized css files might be causing the problem.

Here is the error:

java.lang.AssertionErrorjava.lang.AssertionError at org.netbeans.modules.css.lib.api.properties.GrammarResolver.resolve(GrammarResolver.java:299) at org.netbeans.modules.css.lib.api.properties.GrammarResolver.resolve(GrammarResolver.java:129) at org.netbeans.modules.css.lib.api.properties.GrammarResolver.resolve(GrammarResolver.java:83) at org.netbeans.modules.css.lib.api.properties.ResolvedProperty.<init>(ResolvedProperty.java:59) at org.netbeans.modules.css.lib.api.properties.ResolvedProperty.<init>(ResolvedProperty.java:45) at org.netbeans.modules.css.editor.csl.CssAnalyser$1.visit(CssAnalyser.java:149) at org.netbeans.modules.css.lib.api.NodeVisitor.visitChildren(NodeVisitor.java:89) at org.netbeans.modules.css.lib.api.NodeVisitor.visitChildren(NodeVisitor.java:93) at org.netbeans.modules.css.lib.api.NodeVisitor.visitChildren(NodeVisitor.java:93) at org.netbeans.modules.css.lib.api.NodeVisitor.visitChildren(NodeVisitor.java:93) at org.netbeans.modules.css.lib.api.NodeVisitor.visitChildren(NodeVisitor.java:93) at org.netbeans.modules.css.lib.api.NodeVisitor.visitChildren(NodeVisitor.java:93) at org.netbeans.modules.css.lib.api.NodeVisitor.visitChildren(NodeVisitor.java:93) at org.netbeans.modules.css.editor.csl.CssAnalyser.getExtendedDiagnostics(CssAnalyser.java:200) at org.netbeans.modules.css.lib.ErrorsProviderQuery.getExtendedDiagnostics(ErrorsProviderQuery.java:47) at org.netbeans.modules.css.lib.api.CssParserResult.getDiagnostics(CssParserResult.java:79) at org.netbeans.modules.css.lib.api.CssParserResult.getDiagnostics(CssParserResult.java:97) at org.netbeans.modules.csl.core.TLIndexerFactory$TLIndexer.index(TLIndexerFactory.java:265) at org.netbeans.modules.parsing.spi.indexing.Indexable$MyAccessor$3.run(Indexable.java:225) at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater.runIndexer(RepositoryUpdater.java:275) at org.netbeans.modules.parsing.spi.indexing.Indexable$MyAccessor.index(Indexable.java:223)[catch] at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work$2.run(RepositoryUpdater.java:3209) at org.netbeans.modules.parsing.impl.TaskProcessor.callUserTask(TaskProcessor.java:586) at org.netbeans.modules.parsing.api.ParserManager$UserTaskAction.run(ParserManager.java:130) at org.netbeans.modules.parsing.api.ParserManager$UserTaskAction.run(ParserManager.java:114) at org.netbeans.modules.parsing.impl.TaskProcessor$2.call(TaskProcessor.java:181) at org.netbeans.modules.parsing.impl.TaskProcessor$2.call(TaskProcessor.java:178) at org.netbeans.modules.masterfs.filebasedfs.utils.FileChangedManager.priorityIO(FileChangedManager.java:153) at org.netbeans.modules.masterfs.providers.ProvidedExtensions.priorityIO(ProvidedExtensions.java:335) at org.netbeans.modules.parsing.nb.DataObjectEnvFactory.runPriorityIO(DataObjectEnvFactory.java:118) at org.netbeans.modules.parsing.impl.Utilities.runPriorityIO(Utilities.java:67) at org.netbeans.modules.parsing.impl.TaskProcessor.runUserTask(TaskProcessor.java:178) at org.netbeans.modules.parsing.api.ParserManager.parse(ParserManager.java:81) at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work.indexEmbedding(RepositoryUpdater.java:3143) at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work.doIndex(RepositoryUpdater.java:2862) at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work.access$800(RepositoryUpdater.java:2154) at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work$1.run(RepositoryUpdater.java:2636) at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work$1.run(RepositoryUpdater.java:2634) at org.netbeans.modules.parsing.impl.indexing.errors.TaskCache.refreshTransaction(TaskCache.java:540) at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work.index(RepositoryUpdater.java:2634) at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$AbstractRootsWork$4.call(RepositoryUpdater.java:5714) at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$AbstractRootsWork$4.call(RepositoryUpdater.java:5622) at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$4.run(RepositoryUpdater.java:2127) at org.openide.util.lookup.Lookups.executeWith(Lookups.java:279) at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater.runInContext(RepositoryUpdater.java:2123) at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater.runInContext(RepositoryUpdater.java:2104) at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater.access$1500(RepositoryUpdater.java:136) at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$AbstractRootsWork.scanSource(RepositoryUpdater.java:5749) at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$AbstractRootsWork.scanSources(RepositoryUpdater.java:5419) at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$RootsWork.getDone(RepositoryUpdater.java:5038) at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work.doTheWork(RepositoryUpdater.java:3420) at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Task._run(RepositoryUpdater.java:6183) at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Task.access$4300(RepositoryUpdater.java:5834) at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Task$2$1.run(RepositoryUpdater.java:6099) at org.openide.util.lookup.Lookups.executeWith(Lookups.java:279) at org.netbeans.modules.parsing.impl.RunWhenScanFinishedSupport.performScan(RunWhenScanFinishedSupport.java:83) at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Task$2.call(RepositoryUpdater.java:6095) at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Task$2.call(RepositoryUpdater.java:6091) at org.netbeans.modules.masterfs.filebasedfs.utils.FileChangedManager.priorityIO(FileChangedManager.java:153) at org.netbeans.modules.masterfs.providers.ProvidedExtensions.priorityIO(ProvidedExtensions.java:335) at org.netbeans.modules.parsing.nb.DataObjectEnvFactory.runPriorityIO(DataObjectEnvFactory.java:118) at org.netbeans.modules.parsing.impl.Utilities.runPriorityIO(Utilities.java:67) at org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Task.run(RepositoryUpdater.java:6091) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1418) at org.netbeans.modules.openide.util.GlobalLookup.execute(GlobalLookup.java:45) at org.openide.util.lookup.Lookups.executeWith(Lookups.java:278) at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2033)

 

Issue Links

• links to: GitHub Pull Request #2639