[ 
https://issues.apache.org/jira/browse/NETBEANS-5740?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17368261#comment-17368261
 ] 

 Ronny Perinke edited comment on NETBEANS-5740 at 6/23/21, 3:13 PM:
--------------------------------------------------------------------

I was able to "reproduce" it by opening a multi-module Java Maven project and 
pasting a few lines of code into one of the the classes from a sub-module. The 
project has a Java compile level of 16. It uses compile on save with nb-javac 
enabled and lombok 1.8.20. A dump file for the class is created in 
{{<profile>/var/log}}. Sometimes Netbeans freezes immediately when pasting the 
code (_it is not even showing up in the editor_) and sometimes it requires a 
few undo/redo steps to cause a freeze.

messages.log did not contain the lines about java.util.zip.CRC32C as mentioned 
above by Diego.
{code:java|title=messages.log last lines}
WARNING [org.openide.filesystems.Ordering]: Not all children in / marked with 
the position attribute: 
[org-netbeans-modules-lsp-client-bindings-CompletionProviderImpl.instance], but 
some are: 
[org-netbeans-modules-parsing-ui-WaitScanFinishedCompletionProvider.instance, 
org-netbeans-modules-editor-java-JavaCompletionProvider.instance, 
org-netbeans-modules-jshell-editor-HistoryCompletionProvider.instance, 
org-netbeans-modules-java-editor-javadoc-JavadocCompletionProvider.instance, 
org-netbeans-lib-editor-codetemplates-CodeTemplateCompletionProvider.instance, 
org-netbeans-modules-j2ee-persistence-editor-completion-JPACodeCompletionProvider.instance,
 org-netbeans-modules-websvc-editor-completion-WSCompletionProvider.instance, 
org-netbeans-modules-spellchecker-completion-WordCompletion.instance]
INFO [org.netbeans.modules.parsing.impl.TaskProcessor]: Task: 
CancelableTaskWrapper[task: 
org.netbeans.modules.java.hints.spiimpl.hints.HintsTask@161ee7e4, phase: 
RESOLVED, priority: 500] : class 
org.netbeans.modules.java.source.JavaSourceAccessor$CancelableTaskWrapper 
ignored cancel for 59 ms.
WARNING [org.netbeans.TopSecurityManager]: use of system property netbeans.user 
has been obsoleted in favor of InstalledFileLocator/Places at 
org.netbeans.modules.java.source.parsing.JavacParser.createDumpFile(JavacParser.java:1231)
INFO [org.netbeans.modules.java.source.parsing.VanillaPartialReparser]: 
Incorrect partial reparse detected, dump filed: 
C:\Users\XXX\AppData\Roaming\NetBeans\12.4\var\log\PartnerServiceClientConfiguration.dump
INFO [org.netbeans.modules.parsing.impl.TaskProcessor]: Task: 
org.netbeans.modules.java.editor.semantic.SemanticHighlighter@708419b8 : class 
org.netbeans.modules.java.editor.semantic.SemanticHighlighter ignored cancel 
for 57 ms.
INFO [org.netbeans.modules.java.source.parsing.VanillaPartialReparser]: 
Incorrect partial reparse detected, dump filed: 
C:\Users\XXX\AppData\Roaming\NetBeans\12.4\var\log\PartnerServiceClientConfiguration_1.dump
INFO [org.netbeans.modules.java.source.parsing.VanillaPartialReparser]: 
Incorrect partial reparse detected, dump filed: 
C:\Users\XXX\AppData\Roaming\NetBeans\12.4\var\log\PartnerServiceClientConfiguration_2.dump
INFO [org.netbeans.modules.java.source.parsing.VanillaPartialReparser]: 
Incorrect partial reparse detected, dump filed: 
C:\Users\XXX\AppData\Roaming\NetBeans\12.4\var\log\PartnerServiceClientConfiguration_3.dump
{code}

2nd time
{code}
INFO [org.netbeans.modules.parsing.impl.TaskProcessor]: Task: 
org.netbeans.modules.java.source.parsing.VanillaPartialReparser$VerifyPartialReparse@5ad3e2fe
 : class 
org.netbeans.modules.java.source.parsing.VanillaPartialReparser$VerifyPartialReparse
 ignored cancel for 74 ms.
INFO [org.netbeans.modules.parsing.impl.TaskProcessor]: Task: 
org.netbeans.modules.java.source.parsing.VanillaPartialReparser$VerifyPartialReparse@5ad3e2fe
 : class 
org.netbeans.modules.java.source.parsing.VanillaPartialReparser$VerifyPartialReparse
 ignored cancel for 151 ms.
WARNING [org.netbeans.TopSecurityManager]: use of system property netbeans.user 
has been obsoleted in favor of InstalledFileLocator/Places at 
org.netbeans.modules.java.source.parsing.JavacParser.createDumpFile(JavacParser.java:1231)
INFO [org.netbeans.modules.java.source.parsing.VanillaPartialReparser]: 
Incorrect partial reparse detected, dump filed: 
C:\Users\XXX\AppData\Roaming\NetBeans\12.4\var\log\PartnerServiceClientConfiguration.dump
INFO [org.netbeans.modules.java.source.parsing.VanillaPartialReparser]: 
Incorrect partial reparse detected, dump filed: 
C:\Users\XXX\AppData\Roaming\NetBeans\12.4\var\log\PartnerServiceClientConfiguration_1.dump
INFO [org.netbeans.modules.java.source.parsing.VanillaPartialReparser]: 
Incorrect partial reparse detected, dump filed: 
C:\Users\XXX\AppData\Roaming\NetBeans\12.4\var\log\PartnerServiceClientConfiguration_2.dump
INFO [org.netbeans.modules.java.source.parsing.VanillaPartialReparser]: 
Incorrect partial reparse detected, dump filed: 
C:\Users\XXX\AppData\Roaming\NetBeans\12.4\var\log\PartnerServiceClientConfiguration_3.dump
INFO [org.netbeans.modules.java.source.parsing.VanillaPartialReparser]: 
Incorrect partial reparse detected, dump filed: 
C:\Users\XXX\AppData\Roaming\NetBeans\12.4\var\log\PartnerServiceClientConfiguration_4.dump
INFO [org.netbeans.modules.java.source.parsing.VanillaPartialReparser]: 
Incorrect partial reparse detected, dump filed: 
C:\Users\XXX\AppData\Roaming\NetBeans\12.4\var\log\PartnerServiceClientConfiguration_5.dump
INFO [org.netbeans.modules.java.source.parsing.VanillaPartialReparser]: 
Incorrect partial reparse detected, dump filed: 
C:\Users\XXX\AppData\Roaming\NetBeans\12.4\var\log\PartnerServiceClientConfiguration_6.dump
INFO [org.netbeans.modules.parsing.impl.TaskProcessor]: Task: 
org.netbeans.modules.java.source.parsing.VanillaPartialReparser$VerifyPartialReparse@5ad3e2fe
 : class 
org.netbeans.modules.java.source.parsing.VanillaPartialReparser$VerifyPartialReparse
 ignored cancel for 74 ms.
INFO [org.netbeans.modules.java.source.parsing.VanillaPartialReparser]: 
Incorrect partial reparse detected, dump filed: 
C:\Users\XXX\AppData\Roaming\NetBeans\12.4\var\log\PartnerServiceClientConfiguration_7.dump
{code}

----
Product Version: Apache NetBeans IDE 12.4
 Java: 11.0.11; Java HotSpot(TM) 64-Bit Server VM 11.0.11+9-LTS-194
 Runtime: Java(TM) SE Runtime Environment 11.0.11+9-LTS-194
 System: Windows 10 version 10.0 running on amd64; Cp1252; de_DE (nb)
 Theme: FlatLAF dark
 Plugins:
 Display readme files in project view (and many more), Serial version UID 
generator, TypeScript Editor, Editor zoom, External Code Formatters, Toggle 
line wrap, The nb-javac Java editing support library


was (Author: sephiroth-j):
I was able to "reproduce" it by opening a multi-module Java Maven project and 
pasting a few lines of code into one of the the classes from a sub-module. The 
project has a Java compile level of 16. It uses compile on save with nb-javac 
enabled and lombok 1.8.20. A dump file for the class is created in 
{{<profile>/var/log}}. Sometimes Netbeans freezes immediately when pasting the 
code (_it is not even showing up in the editor_) and sometimes it requires a 
few undo/redo steps to cause a freeze.

messages.log did not contain the lines about java.util.zip.CRC32C as mentioned 
above by Diego.
{code:java|title=messages.log last lines}
WARNING [org.openide.filesystems.Ordering]: Not all children in / marked with 
the position attribute: 
[org-netbeans-modules-lsp-client-bindings-CompletionProviderImpl.instance], but 
some are: 
[org-netbeans-modules-parsing-ui-WaitScanFinishedCompletionProvider.instance, 
org-netbeans-modules-editor-java-JavaCompletionProvider.instance, 
org-netbeans-modules-jshell-editor-HistoryCompletionProvider.instance, 
org-netbeans-modules-java-editor-javadoc-JavadocCompletionProvider.instance, 
org-netbeans-lib-editor-codetemplates-CodeTemplateCompletionProvider.instance, 
org-netbeans-modules-j2ee-persistence-editor-completion-JPACodeCompletionProvider.instance,
 org-netbeans-modules-websvc-editor-completion-WSCompletionProvider.instance, 
org-netbeans-modules-spellchecker-completion-WordCompletion.instance]
INFO [org.netbeans.modules.parsing.impl.TaskProcessor]: Task: 
CancelableTaskWrapper[task: 
org.netbeans.modules.java.hints.spiimpl.hints.HintsTask@161ee7e4, phase: 
RESOLVED, priority: 500] : class 
org.netbeans.modules.java.source.JavaSourceAccessor$CancelableTaskWrapper 
ignored cancel for 59 ms.
WARNING [org.netbeans.TopSecurityManager]: use of system property netbeans.user 
has been obsoleted in favor of InstalledFileLocator/Places at 
org.netbeans.modules.java.source.parsing.JavacParser.createDumpFile(JavacParser.java:1231)
INFO [org.netbeans.modules.java.source.parsing.VanillaPartialReparser]: 
Incorrect partial reparse detected, dump filed: 
C:\Users\XXX\AppData\Roaming\NetBeans\12.4\var\log\PartnerServiceClientConfiguration.dump
INFO [org.netbeans.modules.parsing.impl.TaskProcessor]: Task: 
org.netbeans.modules.java.editor.semantic.SemanticHighlighter@708419b8 : class 
org.netbeans.modules.java.editor.semantic.SemanticHighlighter ignored cancel 
for 57 ms.
INFO [org.netbeans.modules.java.source.parsing.VanillaPartialReparser]: 
Incorrect partial reparse detected, dump filed: 
C:\Users\XXX\AppData\Roaming\NetBeans\12.4\var\log\PartnerServiceClientConfiguration_1.dump
INFO [org.netbeans.modules.java.source.parsing.VanillaPartialReparser]: 
Incorrect partial reparse detected, dump filed: 
C:\Users\XXX\AppData\Roaming\NetBeans\12.4\var\log\PartnerServiceClientConfiguration_2.dump
INFO [org.netbeans.modules.java.source.parsing.VanillaPartialReparser]: 
Incorrect partial reparse detected, dump filed: 
C:\Users\XXX\AppData\Roaming\NetBeans\12.4\var\log\PartnerServiceClientConfiguration_3.dump
{code}
----
Product Version: Apache NetBeans IDE 12.4
 Java: 11.0.11; Java HotSpot(TM) 64-Bit Server VM 11.0.11+9-LTS-194
 Runtime: Java(TM) SE Runtime Environment 11.0.11+9-LTS-194
 System: Windows 10 version 10.0 running on amd64; Cp1252; de_DE (nb)
 Theme: FlatLAF dark
 Plugins:
 Display readme files in project view (and many more), Serial version UID 
generator, TypeScript Editor, Editor zoom, External Code Formatters, Toggle 
line wrap, The nb-javac Java editing support library

> Netbeans 12.4 randomly freezes
> ------------------------------
>
>                 Key: NETBEANS-5740
>                 URL: https://issues.apache.org/jira/browse/NETBEANS-5740
>             Project: NetBeans
>          Issue Type: Bug
>    Affects Versions: 12.4
>         Environment: Ubuntu 20.04
> Netbeans 12.4
> OpenJDK 11.0.11
>            Reporter: Diego Díez
>            Priority: Major
>
> We have started experiencing random freezes after upgrading to Netbeans 12.3, 
> not responding any component to mouse or keyboard interactions.
> We have also noticed that lombok-1.18.18 stopped working with the newer 
> nb-javac installed with the 12.4 version (java16 support). I can't confirm 
> whether this is related with the freezes or not. Using lombok-1.18.20 seems 
> to work well, though.
> Any ideas? Is there any log to look for errors?
> As a workaround we have downgraded to 12.3 as it is a blocking issue for us, 
> being forced to kill the process every time it gets stuck.



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