Andrew Checchi created NETBEANS-3544:
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             Summary: 500 files causes nb-javac to fail
                 Key: NETBEANS-3544
                 URL: https://issues.apache.org/jira/browse/NETBEANS-3544
             Project: NetBeans
          Issue Type: Bug
         Environment: Product Version: Apache NetBeans IDE 11.2-dev
Java: 12.0.2; OpenJDK 64-Bit Server VM 12.0.2+10
Runtime: OpenJDK Runtime Environment 12.0.2+10
System: Windows 10 version 10.0 running on amd64; Cp1252; en_US (nb)
            Reporter: Andrew Checchi


If using the nb-javac plugin, the following error will be thrown when 
attempting to scan the project if 500 or more files are present in one project 
source folder.

I've attached a test project that contains 500 empty java files. Opening this 
project with no local cache will produce the error. The error dialogs can all 
be cleared but attempts to work with the source in this state will cause other 
errors to occur. For example, give any class a variable pointing to any other 
class. From the referencing class, use Ctrl+R to attempt to rename the 
referenced other class. This will cause the exeception again.

Note that if you start with a less than 500 files, you can add files past the 
500 mark, You can also subsequently open that project and continue working.
{quote} java.lang.AssertionErrorjava.lang.AssertionError at 
com.sun.tools.javac.util.Assert.error(Assert.java:155) at 
com.sun.tools.javac.util.Assert.checkNonNull(Assert.java:62) at 
com.sun.tools.javac.comp.Modules.setCompilationUnitModules(Modules.java:559) at 
com.sun.tools.javac.comp.Modules.enter(Modules.java:287) at 
com.sun.tools.javac.comp.Modules.enter(Modules.java:268) at 
com.sun.tools.javac.comp.Modules.initModules(Modules.java:259) at 
com.sun.tools.javac.main.JavaCompiler.initModules(JavaCompiler.java:1126) at 
com.sun.tools.javac.api.JavacTaskImpl.enter(JavacTaskImpl.java:393) at 
com.sun.tools.javac.api.JavacTaskImpl.enterTrees(JavacTaskImpl.java:451)[catch] 
at 
org.netbeans.modules.java.source.nbjavac.indexing.MultiPassCompileWorker.compile(MultiPassCompileWorker.java:204)
 at 
org.netbeans.modules.java.source.indexing.JavaCustomIndexer.index(JavaCustomIndexer.java:361)
 at 
org.netbeans.modules.parsing.spi.indexing.Indexable$MyAccessor$2.run(Indexable.java:138)
 at 
org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater.runIndexer(RepositoryUpdater.java:275)
 at 
org.netbeans.modules.parsing.spi.indexing.Indexable$MyAccessor.index(Indexable.java:136)
 at 
org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$RefreshCifIndices$1.call(RepositoryUpdater.java:4142)
 at 
org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$RefreshCifIndices$1.call(RepositoryUpdater.java:4081)
 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$1500(RepositoryUpdater.java:136)
 at 
org.netbeans.modules.parsing.impl.indexing.RepositoryUpdater$RefreshCifIndices.getDone(RepositoryUpdater.java:4171)
 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)
{quote}



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