istinnstudio opened a new issue, #8677:
URL: https://github.com/apache/netbeans/issues/8677
### Apache NetBeans version
Apache NetBeans 26
### What happened
Currently I cannot provide the code that cause this but it looks like it is
a scaling issue of a situation in "code folding". Disabling code folding
brings performance to normal. It has been observed on large files > 20k lines
of various java code of any kind and comments.
### Language / Project Type / NetBeans Component
_No response_
### How to reproduce
Maybe by scaling a large file >20k lines of various code and enable code
folding. If I can isolate the cause, I will provide the findings.
### Did this work correctly in an earlier version?
No / Don't know
### Operating System
Windows 10 pro
### JDK
24
### Apache NetBeans packaging
Apache NetBeans binary zip
### Anything else
The IDE log looks like this:
```
New fold: [code-block] E2 <354169,358341>, desc='{...}', hash=0x334e67b8,
[354169, 358341] {354170, 358340}; FoldManager:
org.netbeans.modules.java.editor.fold.JavaElementFoldManager@56e02d1
Adding a fold that is identical with another previously added fold from the
same FoldManager is not allowed.
Existing fold: [code-block] E2 <354169,358341>, desc='{...}',
hash=0x246923b, [354169, 358341] {354170, 358340}; FoldManager:
org.netbeans.modules.java.editor.fold.JavaElementFoldManager@56e02d1
New fold: [code-block] E2 <354169,358341>, desc='{...}', hash=0x3aa2f9d6,
[354169, 358341] {354170, 358340}; FoldManager:
org.netbeans.modules.java.editor.fold.JavaElementFoldManager@56e02d1
Adding a fold that is identical with another previously added fold from the
same FoldManager is not allowed.
Existing fold: [code-block] E2 <354169,358341>, desc='{...}',
hash=0x246923b, [354169, 358341] {354170, 358340}; FoldManager:
org.netbeans.modules.java.editor.fold.JavaElementFoldManager@56e02d1
New fold: [code-block] E2 <354169,358341>, desc='{...}', hash=0x37a3e157,
[354169, 358341] {354170, 358340}; FoldManager:
org.netbeans.modules.java.editor.fold.JavaElementFoldManager@56e02d1
Adding a fold that is identical with another previously added fold from the
same FoldManager is not allowed.
Existing fold: [code-block] E2 <354169,358341>, desc='{...}',
hash=0x246923b, [354169, 358341] {354170, 358340}; FoldManager:
org.netbeans.modules.java.editor.fold.JavaElementFoldManager@56e02d1
New fold: [code-block] E2 <354169,358341>, desc='{...}', hash=0x5ef29c80,
[354169, 358341] {354170, 358340}; FoldManager:
org.netbeans.modules.java.editor.fold.JavaElementFoldManager@56e02d1
Adding a fold that is identical with another previously added fold from the
same FoldManager is not allowed.
Existing fold: [code-block] E2 <354169,358341>, desc='{...}',
hash=0x246923b, [354169, 358341] {354170, 358340}; FoldManager:
org.netbeans.modules.java.editor.fold.JavaElementFoldManager@56e02d1
New fold: [code-block] E2 <354169,358341>, desc='{...}', hash=0x2f6f8080,
[354169, 358341] {354170, 358340}; FoldManager:
org.netbeans.modules.java.editor.fold.JavaElementFoldManager@56e02d1
... 5K entries
New fold: [code-block] E2 <354169,358341>, desc='{...}', hash=0x3f7377d,
[354169, 358341] {354170, 358340}; FoldManager:
org.netbeans.modules.java.editor.fold.JavaElementFoldManager@61e22438
Adding a fold that is identical with another previously added fold from the
same FoldManager is not allowed.
Existing fold: [code-block] E2 <354169,358341>, desc='{...}',
hash=0x1c367488, [354169, 358341] {354170, 358340}; FoldManager:
org.netbeans.modules.java.editor.fold.JavaElementFoldManager@61e22438
New fold: [code-block] E2 <354169,358341>, desc='{...}', hash=0x3978da70,
[354169, 358341] {354170, 358340}; FoldManager:
org.netbeans.modules.java.editor.fold.JavaElementFoldManager@61e22438
Adding a fold that is identical with another previously added fold from the
same FoldManager is not allowed.
Existing fold: [code-block] E2 <354169,358341>, desc='{...}',
hash=0x1c367488, [354169, 358341] {354170, 358340}; FoldManager:
org.netbeans.modules.java.editor.fold.JavaElementFoldManager@61e22438
New fold: [code-block] E2 <354169,358341>, desc='{...}', hash=0x1bd6f6d0,
[354169, 358341] {354170, 358340}; FoldManager:
org.netbeans.modules.java.editor.fold.JavaElementFoldManager@61e22438
Adding a fold that is identical with another previously added fold from the
same FoldManager is not allowed.
Existing fold: [code-block] E2 <354169,358341>, desc='{...}',
hash=0x1c367488, [354169, 358341] {354170, 358340}; FoldManager:
org.netbeans.modules.java.editor.fold.JavaElementFoldManager@61e22438
New fold: [code-block] E2 <354169,358341>, desc='{...}', hash=0x2577fe71,
[354169, 358341] {354170, 358340}; FoldManager:
org.netbeans.modules.java.editor.fold.JavaElementFoldManager@61e22438
Adding a fold that is identical with another previously added fold from the
same FoldManager is not allowed.
Existing fold: [code-block] E2 <354169,358341>, desc='{...}',
hash=0x1c367488, [354169, 358341] {354170, 358340}; FoldManager:
org.netbeans.modules.java.editor.fold.JavaElementFoldManager@61e22438
New fold: [code-block] E2 <354169,358341>, desc='{...}', hash=0x4a4c024a,
[354169, 358341] {354170, 358340}; FoldManager:
org.netbeans.modules.java.editor.fold.JavaElementFoldManager@61e22438
Adding a fold that is identical with another previously added fold from the
same FoldManager is not allowed.
Existing fold: [code-block] E2 <354169,358341>, desc='{...}',
hash=0x1c367488, [354169, 358341] {354170, 358340}; FoldManager:
org.netbeans.modules.java.editor.fold.JavaElementFoldManager@61e22438
New fold: [code-block] E2 <354169,358341>, desc='{...}', hash=0x568b02c8,
[354169, 358341] {354170, 358340}; FoldManager:
org.netbeans.modules.java.editor.fold.JavaElementFoldManager@61e22438
Adding a fold that is identical with another previously added fold from the
same FoldManager is not allowed.
Existing fold: [code-block] E2 <354169,358341>, desc='{...}',
hash=0x1c367488, [354169, 358341] {354170, 358340}; FoldManager:
org.netbeans.modules.java.editor.fold.JavaElementFoldManager@61e22438
New fold: [code-block] E2 <354169,358341>, desc='{...}', hash=0x7ad396d1,
[354169, 358341] {354170, 358340}; FoldManager:
org.netbeans.modules.java.editor.fold.JavaElementFoldManager@61e22438
Adding a fold that is identical with another previously added fold from the
same FoldManager is not allowed.
Existing fold: [code-block] E2 <354169,358341>, desc='{...}',
hash=0x1c367488, [354169, 358341] {354170, 358340}; FoldManager:
org.netbeans.modules.java.editor.fold.JavaElementFoldManager@61e22438
New fold: [code-block] E2 <354169,358341>, desc='{...}', hash=0x4f293429,
[354169, 358341] {354170, 358340}; FoldManager:
org.netbeans.modules.java.editor.fold.JavaElementFoldManager@61e22438
Adding a fold that is identical with another previously added fold from the
same FoldManager is not allowed.
Existing fold: [code-block] E2 <354169,358341>, desc='{...}',
hash=0x1c367488, [354169, 358341] {354170, 358340}; FoldManager:
org.netbeans.modules.java.editor.fold.JavaElementFoldManager@61e22438
New fold: [code-block] E2 <354169,358341>, desc='{...}', hash=0x4be78567,
[354169, 358341] {354170, 358340}; FoldManager:
org.netbeans.modules.java.editor.fold.JavaElementFoldManager@61e22438
Adding a fold that is identical with another previously added fold from the
same FoldManager is not allowed.
Existing fold: [code-block] E2 <354169,358341>, desc='{...}',
hash=0x1c367488, [354169, 358341] {354170, 358340}; FoldManager:
org.netbeans.modules.java.editor.fold.JavaElementFoldManager@61e22438
New fold: [code-block] E2 <354169,358341>, desc='{...}', hash=0x1fcf680f,
[354169, 358341] {354170, 358340}; FoldManager:
org.netbeans.modules.java.editor.fold.JavaElementFoldManager@61e22438
```
### Are you willing to submit a pull request?
No
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