bernard01 opened a new issue, #4766:
URL: https://github.com/apache/netbeans/issues/4766
### Apache NetBeans version
Apache NetBeans 15
### What happened
At NetBeans startup with a project group containing a single project, after
the cache was deleted.
The problem occurred before. That is why I deleted the cache.
The project where the exception offurs worked before for a long time just a
few weeks ago. Now it is broken and I cannot work with it.
The project compiles without errors when compiled from the Projects windoe
context menu.
The broken java files are in the unit test hierarchy of a Maven project.
I may be able to provide more info, but this will require some work. So I
wait and see whether something obvious can be discovered from the log.
Product Version: Apache NetBeans IDE 15
Java: 14; Java HotSpot(TM) 64-Bit Server VM 14+36-1461
Runtime: Java(TM) SE Runtime Environment 14+36-1461
System: Windows 7 version 6.1 running on amd64; Cp1252; en_NZ (nb)
User directory: C:\Users\user\AppData\Roaming\NetBeans\15
Cache directory: C:\Users\user\AppData\Local\NetBeans\Cache\15
java.lang.NullPointerException
at com.sun.tools.javac.tree.TreeInfo.declarationFor(TreeInfo.java:792)
at
com.sun.tools.javac.model.JavacElements.getTreeAndTopLevel(JavacElements.java:769)
at
com.sun.tools.javac.model.JavacElements.getTreeAndTopLevel(JavacElements.java:789)
at com.sun.tools.javac.api.JavacTrees.getPath(JavacTrees.java:337)
at com.sun.tools.javac.api.JavacTrees.getPath(JavacTrees.java:327)
at
org.netbeans.lib.nbjavac.services.NBJavacTrees.getPath(NBJavacTrees.java:56)
at
org.netbeans.modules.java.source.indexing.VanillaCompileWorker$2.run(VanillaCompileWorker.java:352)
at
org.netbeans.modules.java.source.parsing.FileManagerTransaction.runConcurrent(FileManagerTransaction.java:180)
[catch] at
org.netbeans.modules.java.source.indexing.VanillaCompileWorker.compile(VanillaCompileWorker.java:342)
at
org.netbeans.modules.java.source.indexing.JavaCustomIndexer.index(JavaCustomIndexer.java:360)
at
org.netbeans.modules.parsing.spi.indexing.Indexable$MyAccessor$2.run(Indexable.java:138)
at
org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater.runIndexer(RepositoryUpdater.java:274)
at
org.netbeans.modules.parsing.spi.indexing.Indexable$MyAccessor.index(Indexable.java:136)
at
org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work.doIndex(RepositoryUpdater.java:2749)
at
org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work.lambda$index$0(RepositoryUpdater.java:2626)
at
org.netbeans.modules.parsing.impl.indexing.errors.TaskCache.refreshTransaction(TaskCache.java:540)
at
org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work.index(RepositoryUpdater.java:2625)
at
org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$AbstractRootsWork.lambda$scanSource$3(RepositoryUpdater.java:5735)
at
org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater.lambda$runInContext$4(RepositoryUpdater.java:2119)
at org.openide.util.lookup.Lookups.executeWith(Lookups.java:279)
at
org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater.runInContext(RepositoryUpdater.java:2117)
at
org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater.runInContext(RepositoryUpdater.java:2098)
at
org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater.access$1400(RepositoryUpdater.java:135)
at
org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$AbstractRootsWork.scanSource(RepositoryUpdater.java:5770)
at
org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$AbstractRootsWork.scanSources(RepositoryUpdater.java:5443)
at
org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$RootsWork.getDone(RepositoryUpdater.java:5075)
at
org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$InitialRootsWork.getDone(RepositoryUpdater.java:5842)
at
org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Work.doTheWork(RepositoryUpdater.java:3452)
at
org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Task._run(RepositoryUpdater.java:6197)
at
org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Task.access$3400(RepositoryUpdater.java:5855)
at
org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Task$2.lambda$call$0(RepositoryUpdater.java:6116)
at org.openide.util.lookup.Lookups.executeWith(Lookups.java:279)
at
org.netbeans.modules.parsing.impl.RunWhenScanFinishedSupport.performScan(RunWhenScanFinishedSupport.java:83)
at
org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Task$2.call(RepositoryUpdater.java:6116)
at
org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Task$2.call(RepositoryUpdater.java:6112)
at
org.netbeans.modules.masterfs.filebasedfs.utils.FileChangedManager.priorityIO(FileChangedManager.java:153)
at
org.netbeans.modules.masterfs.providers.ProvidedExtensions.priorityIO(ProvidedExtensions.java:335)
at
org.netbeans.modules.parsing.nb.DataObjectEnvFactory.runPriorityIO(DataObjectEnvFactory.java:118)
at
org.netbeans.modules.parsing.impl.Utilities.runPriorityIO(Utilities.java:67)
at
org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$Task.run(RepositoryUpdater.java:6112)
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)
### How to reproduce
I may be able to provide a reproducible test case. But perhaps I may not be
able to because from experience, after simplifying projects to a test case, the
problem often disappears.
[messages.log](https://github.com/apache/netbeans/files/9750242/messages.log)
### Did this work correctly in an earlier version?
No / Don't know
### Operating System
Windows 7
### JDK
Java 14
### Apache NetBeans packaging
Apache NetBeans provided installer
### Anything else
_No response_
### Are you willing to submit a pull request?
No
### Code of Conduct
Yes
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