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Posted to notifications@netbeans.apache.org by "makiam (via GitHub)" <gi...@apache.org> on 2025/12/01 11:22:17 UTC
[I] IDE throws NullPointerException from javac on opening file [netbeans]
makiam opened a new issue, #9055:
URL: https://github.com/apache/netbeans/issues/9055
### Apache NetBeans version
Apache NetBeans 29 latest daily build
### What happened
Opening some files in Java + Kotlin multi-module Gradle project throws NPE from nbjavac code:
Caused: java.lang.NullPointerException: Cannot invoke "com.sun.tools.javac.code.Symbol.flags()" because "sym" is null
at com.sun.tools.javac.code.Types.memberType(Types.java:2304)
at com.sun.tools.javac.comp.Attr.isBooleanOrNumeric(Attr.java:2141)
at com.sun.tools.javac.comp.Attr.isBooleanOrNumeric(Attr.java:2130)
at com.sun.tools.javac.comp.Attr.visitConditional(Attr.java:2068)
at com.sun.tools.javac.tree.JCTree$JCConditional.accept(JCTree.java:1580)
at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:677)
at com.sun.tools.javac.comp.Attr.attribExpr(Attr.java:723)
at com.sun.tools.javac.comp.Attr.visitVarDef(Attr.java:1317)
at org.netbeans.lib.nbjavac.services.NBAttr.visitVarDef(NBAttr.java:99)
at com.sun.tools.javac.tree.JCTree$JCVariableDecl.accept(JCTree.java:1066)
at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:677)
at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:751)
at com.sun.tools.javac.comp.Attr.attribStats(Attr.java:770)
at com.sun.tools.javac.comp.Attr.visitBlock(Attr.java:1463)
at org.netbeans.lib.nbjavac.services.NBAttr.visitBlock(NBAttr.java:92)
at com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:1136)
at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:677)
at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:751)
at com.sun.tools.javac.comp.Attr.visitMethodDef(Attr.java:1244)
at org.netbeans.lib.nbjavac.services.NBAttr.visitMethodDef(NBAttr.java:86)
at com.sun.tools.javac.tree.JCTree$JCMethodDecl.accept(JCTree.java:960)
at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:677)
at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:751)
at com.sun.tools.javac.comp.Attr.attribClassBody(Attr.java:5664)
at com.sun.tools.javac.comp.Attr.attribClass(Attr.java:5550)
at com.sun.tools.javac.comp.Attr.attribClass(Attr.java:5365)
at org.netbeans.lib.nbjavac.services.NBAttr.attribClass(NBAttr.java:74)
at com.sun.tools.javac.comp.Attr.attrib(Attr.java:5302)
at com.sun.tools.javac.main.JavaCompiler.attribute(JavaCompiler.java:1346)
at com.sun.tools.javac.main.JavaCompiler.attribute(JavaCompiler.java:1319)
at com.sun.tools.javac.api.JavacTaskImpl.analyze(JavacTaskImpl.java:404)
at com.sun.tools.javac.api.JavacTaskImpl.lambda$analyze$1(JavacTaskImpl.java:379)
at com.sun.tools.javac.api.JavacTaskImpl.invocationHelper(JavacTaskImpl.java:152)
at com.sun.tools.javac.api.JavacTaskImpl.analyze(JavacTaskImpl.java:379)
Caused: java.lang.IllegalStateException
at com.sun.tools.javac.api.JavacTaskImpl.analyze(JavacTaskImpl.java:383)
at org.netbeans.modules.java.source.parsing.JavacParser.moveToPhase(JavacParser.java:765)
at org.netbeans.modules.java.source.parsing.JavacParser.getResult(JavacParser.java:536)
at org.netbeans.modules.java.source.parsing.JavacParser.getResult(JavacParser.java:140)
at org.netbeans.modules.parsing.impl.TaskProcessor.callGetResult(TaskProcessor.java:608)
at org.netbeans.modules.parsing.impl.SourceCache.getResult(SourceCache.java:241)
at org.netbeans.modules.parsing.impl.TaskProcessor$RequestPerformer.run(TaskProcessor.java:775)
at org.openide.util.lookup.Lookups.executeWith(Lookups.java:288)
at org.netbeans.modules.parsing.impl.TaskProcessor$RequestPerformer.execute(TaskProcessor.java:702)
[catch] at org.netbeans.modules.parsing.impl.TaskProcessor$CompilationJob.run(TaskProcessor.java:663)
at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1403)
at org.netbeans.modules.openide.util.GlobalLookup.execute(GlobalLookup.java:45)
at org.openide.util.lookup.Lookups.executeWith(Lookups.java:287)
at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2018)
### Language / Project Type / NetBeans Component
Java + Kotlin multi-module Gradle project
### How to reproduce
Open GH project: https://github.com/makiam/Tokonga
Module: Translators
Open File OBJExporter.java
### Did this work correctly in an earlier version?
No / Don't know
### Operating System
Ubuntu and/or Windows
### JDK
Java: 17.0.10; OpenJDK 64-Bit Server VM 17.0.10+13-LTS
### Apache NetBeans packaging
Other
### Anything else
IDE dump file
[OBJExporter_2.zip](https://github.com/user-attachments/files/23852197/OBJExporter_2.zip)
### Are you willing to submit a pull request?
No
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Re: [I] IDE throws NullPointerException from javac on opening file [netbeans]
Posted by "lahodaj (via GitHub)" <gi...@apache.org>.
lahodaj commented on issue #9055:
URL: https://github.com/apache/netbeans/issues/9055#issuecomment-3597923798
FWIW, a recent fix that fixes an NPE on the same place:
https://github.com/openjdk/jdk/commit/ac046628edaee66d1469c49864b70bdefee6570e
it is hard to tell if it is the same as here, but certainly possible. Will be adopted when we start to use JDK 26's javac.
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Re: [I] IDE throws NullPointerException from javac on opening file [netbeans]
Posted by "mbien (via GitHub)" <gi...@apache.org>.
mbien commented on issue #9055:
URL: https://github.com/apache/netbeans/issues/9055#issuecomment-3596646147
can't reproduce it. The last time I found a reference to this exception was in a NB 19 log file. Probably a sporadic failure and/or lombok related
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