errael opened a new issue, #4651:
URL: https://github.com/apache/netbeans/issues/4651
### Apache NetBeans version
Apache NetBeans 15
### What happened
No hint highlights after exception in hints processing
### How to reproduce
(These steps reproduce 100% for me. I can provide the project and tainted
userdir if that would be useful)
I narrowed down the issue with these steps. Once there's a userdir that has
the problem, just start NB and get the exception
- staring with clean .nb/15 (some -J-D added to netbeans.conf)
- start nb, no imports
- open project, java file; note visible hints highlights
(not all projects exhibit the problem)
- import from "tainted userdir", restart
categories: general, miscellaneous (need both)
- OBSERVE: no hints, exception (see below)
In Java Platform Manager there are several entries, the entry `Zulu
18.0.2.1+1`
is shown in red. Select it and the following for PlatformInstallFolder:
```
/junk/Downloads/zulu18.32.13-ca-jdk18.0.2.1-linux_x64/zulu18.32.13-ca-jdk18.0.2.1-linux_x64
```
is displayed in red, and there's the message `Error: the specified folder
does not contain a java platform`
Restart NB and the problem persists.
Remove this bad entry, and the hints show up again.
NOTE: the project does not reference this JDK.
I wonder if Platform is providing garbage to HintProcessing, or if
HintProcessing is not handling a valid return from Platform.
I can see how importing miscellaneous is required, I wonder what's in
General that's needed to trigger it.
FYI: While doing some cleanup I moved the referenced directory to where all
the jdk's on this system reside, and forgot about it. Several days later, after
changing and moving around lots of stuff locally, I noticed there was a hints
problem.
```
SEVERE [org.openide.util.Exceptions]
java.lang.NullPointerException
at
com.sun.tools.javac.code.Types$ImplementationCache.implementationInternal(Types.java:2983)
at
com.sun.tools.javac.code.Types$ImplementationCache.get(Types.java:2969)
at com.sun.tools.javac.code.Types.implementation(Types.java:3004)
at
com.sun.tools.javac.comp.Check.checkClassOverrideEqualsAndHash(Check.java:2199)
at
com.sun.tools.javac.comp.Check.checkClassOverrideEqualsAndHashIfNeeded(Check.java:2189)
at com.sun.tools.javac.comp.Attr.attribClass(Attr.java:5389)
at com.sun.tools.javac.comp.Attr.attribClass(Attr.java:5210)
at com.sun.tools.javac.comp.Attr.attrib(Attr.java:5155)
at
com.sun.tools.javac.main.JavaCompiler.attribute(JavaCompiler.java:1317)
at
org.netbeans.modules.java.hints.spiimpl.Utilities.constructScope(Utilities.java:775)
at
org.netbeans.modules.java.hints.declarative.Hacks.constructScope(Hacks.java:73)
at
org.netbeans.modules.java.hints.declarative.DeclarativeHintsParser.lambda$resolve$0(DeclarativeHintsParser.java:494)
at
org.netbeans.modules.java.source.parsing.MimeTask.run(MimeTask.java:60)
at
org.netbeans.modules.parsing.impl.TaskProcessor.callUserTask(TaskProcessor.java:586)
at
org.netbeans.modules.parsing.api.ParserManager$MimeTaskAction.run(ParserManager.java:364)
at
org.netbeans.modules.parsing.api.ParserManager$MimeTaskAction.run(ParserManager.java:347)
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:318)
at
org.netbeans.api.java.source.JavaSource.runUserActionTaskImpl(JavaSource.java:433)
at
org.netbeans.api.java.source.JavaSource.runUserActionTask(JavaSource.java:425)
at
org.netbeans.modules.java.hints.declarative.DeclarativeHintsParser.resolve(DeclarativeHintsParser.java:473)
at
org.netbeans.modules.java.hints.declarative.DeclarativeHintsParser.access$000(DeclarativeHintsParser.java:80)
at
org.netbeans.modules.java.hints.declarative.DeclarativeHintsParser$Impl.parseCondition(DeclarativeHintsParser.java:307)
at
org.netbeans.modules.java.hints.declarative.DeclarativeHintsParser$Impl.parseConditions(DeclarativeHintsParser.java:254)
at
org.netbeans.modules.java.hints.declarative.DeclarativeHintsParser$Impl.parseRule(DeclarativeHintsParser.java:211)
at
org.netbeans.modules.java.hints.declarative.DeclarativeHintsParser$Impl.parseInput(DeclarativeHintsParser.java:180)
at
org.netbeans.modules.java.hints.declarative.DeclarativeHintsParser$Impl.access$200(DeclarativeHintsParser.java:87)
at
org.netbeans.modules.java.hints.declarative.DeclarativeHintsParser.parse(DeclarativeHintsParser.java:391)
at
org.netbeans.modules.java.hints.declarative.DeclarativeHintRegistry.parseHints(DeclarativeHintRegistry.java:255)
at
org.netbeans.modules.java.hints.declarative.DeclarativeHintRegistry.parseHintFile(DeclarativeHintRegistry.java:233)
at
org.netbeans.modules.java.hints.declarative.DeclarativeHintRegistry.readHints(DeclarativeHintRegistry.java:122)
at
org.netbeans.modules.java.hints.declarative.DeclarativeHintRegistry.computeHints(DeclarativeHintRegistry.java:105)
at
org.netbeans.modules.java.hints.spiimpl.RulesManagerImpl.readHints(RulesManagerImpl.java:139)
at
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:132)
at
org.netbeans.modules.java.hints.spiimpl.hints.HintsInvoker.computeHints(HintsInvoker.java:127)
at
org.netbeans.modules.java.hints.spiimpl.hints.HintsTask.run(HintsTask.java:113)
at
org.netbeans.modules.java.hints.spiimpl.hints.HintsTask.run(HintsTask.java:63)
[catch] at
org.netbeans.modules.java.source.JavaSourceAccessor$CancelableTaskWrapper.run(JavaSourceAccessor.java:273)
at
org.netbeans.modules.parsing.impl.TaskProcessor.callParserResultTask(TaskProcessor.java:561)
at
org.netbeans.modules.parsing.impl.TaskProcessor$RequestPerformer.run(TaskProcessor.java:786)
at org.openide.util.lookup.Lookups.executeWith(Lookups.java:279)
at
org.netbeans.modules.parsing.impl.TaskProcessor$RequestPerformer.execute(TaskProcessor.java:702)
at
org.netbeans.modules.parsing.impl.TaskProcessor$CompilationJob.run(TaskProcessor.java:663)
at
java.base/java.util.concurrent.Executors$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)
SEVERE [null]: Last record repeated again.
```
### Did this work correctly in an earlier version?
No / Don't know
### Operating System
Linux harmony 5.19.0-76051900-generic #202207312230~1660780566~22.04~9d60db1
### JDK
OpenJDK Runtime Environment 18.9 (build 11.0.2+9) OpenJDK 64-Bit Server VM
18.9 (build 11.0.2+9, mixed mode)
### Apache NetBeans packaging
Apache NetBeans binary zip
### Anything else
_No response_
### Are you willing to submit a pull request?
No
### Code of Conduct
Yes
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