Bug 442049 - Eclipse 4.4 (JSDT) Attempting to copy from .js files in project, using ctrl+c or right-click menu, hangs/crashes JSDT in a big project

[neatcode]

When I attempt to copy some of my source code using ctrl+c or the right-click menu "copy" command in any of the .js files in one of my Node.js projects, Nodeclipse hangs every time. It spins the CPU up to 100% and takes up all available memory.

I have a zip file you can unzip and import the project to replicate the issue here: http://www78.zippyshare.com/v/80482621/file.html (Use the orange "Download Now" button, the others are ads)

Just unzip the file to a directory and import it into your workspace, then try to copy source code out of any of the .js files in the project. For instance, server.js in the root directory exhibits the problem on my PC.

Note that this issue does not exist in some of my other Node.js projects. The project I'm working on here is the standard "mean.io" boilerplate, so many people are likely to encounter the same problem if they try out Nodeclipse as mean.io is quite popular. I HAVE tried regenerating the project file for the project using "nodeclipse -prepare" (after deleting the old project files) and that generated a new project which I reimported, however the issue still exists.

Do you know what's going on here?

---

Nodeclipse version (From the about box):

Enide Studio 2014 based on preview of Eclipse 4.4 M4 Luna

Version: 0.11
Build id: org.apache.maven.model.Build@7e6abaff

"Eclipse Standard/SDK"

---

C:\Enide\workspace\testmeanapp1>java -version
java version "1.8.0_11"
Java(TM) SE Runtime Environment (build 1.8.0_11-b12)
Java HotSpot(TM) 64-Bit Server VM (build 25.11-b03, mixed mode)

---

OS:
C:\Enide\workspace\testmeanapp1>systeminfo | findstr /B /C:"OS Name" /C:"OS Version"
OS Name: Microsoft Windows 8
OS Version: 6.2.9200 N/A Build 9200

(64bit Windows)

[paulvi]

Thank you for reporting.

I remember a year ago I ran into similar or saw similar on Stackoverflow.

This is JSDT issue. When you edit .js file Eclipse standard javaScript Editor from WetTools is used.
To check used version check Help -> Installation Details
It should be similar to this (1.6.0):

As you are using older Eclipse stack, trying to update to the latest 4.4.0 (released in June) on installing on fresh Eclipse Luna is first step to check.

Then if it is still their raise an issue on https://bugs.eclipse.org/bugs/ against JSDT
(and share link here)

I can't download zip, could you please email me at ***************

[paulvi]

Also check in Project properties if JS sematic validation is turned off (JSHint should be used instead)

.project

<?xml version="1.0" encoding="UTF-8"?>
<projectDescription>
    <name>NodeProject1</name>
    <comment></comment>
    <projects>
    </projects>
    <buildSpec>
        <buildCommand>
            <name>com.eclipsesource.jshint.ui.builder</name>
            <arguments>
            </arguments>
        </buildCommand>
    </buildSpec>
    <natures>
        <nature>org.nodeclipse.ui.NodeNature</nature>
        <nature>org.eclipse.wst.jsdt.core.jsNature</nature>
    </natures>
</projectDescription>

.settings\org.eclipse.wst.jsdt.core.prefs

eclipse.preferences.version=1
semanticValidation=disabled

[paulvi]

Update: I managed to download zip. It is 170MB compressed into 62MB
( What a huge size for a Node project! loooking further ...)

Most of them are under node_modules (150MB) in 60 folders, including things like forever that should be installed globally. Seems to be too much stuff.

Better to check if it is about mean.io but creating new project with mean.io only.

[neatcode]

I did install Eclipse and Nodeclipse freshly after I encountered the bug. I also used a clean installation of Mean.IO, the bug still occurred.

Also, it shouldn't matter if I have alot of node_modules, Eclipse should be able to handle large projects. JetBrains WebStorm handles the same project just fine.

After you downloaded the zip and loaded the project, were you able to replicate the bug (did Eclipse hang when you tried copying from the source of a JavaScript file in the project)?

[paulvi]

I just don't know what max size of source JSDT is capable of handling...

I got Eclipse 4.4 Luna freezing when just expanding testmeanapp1 under JavaScript Resource

then after 10-20 seconds I got "GC overhead limit exceeded"

Eclipse is using 75% or 3 of 4 core of CPU

[paulvi]

after Eclipse restart, it freezes again during initial build...

after closing the problematic project Eclipse is still using 75% or 3 of 4 core of CPU

[paulvi]

I submitted bug https://bugs.eclipse.org/bugs/show_bug.cgi?id=442049 "Bug 442049 - Eclipse 4.4 (JSDT 1.6.0) freezes when expending project node under JavaScript Resource and/or making copy/paste operations"

please vote for it and follow

[paulvi]

Work-around is to remove org.eclipse.wst.jsdt.core.jsNature nature in .project

<?xml version="1.0" encoding="UTF-8"?>
<projectDescription>
    <name>testmeanapp1</name>
    <comment></comment>
    <projects>
    </projects>
    <buildSpec>
        <buildCommand>
            <name>com.eclipsesource.jshint.ui.builder</name>
            <arguments>
            </arguments>
        </buildCommand>
    </buildSpec>
    <natures>
        <nature>org.nodeclipse.ui.NodeNature</nature>
        <!--  
        <nature>org.eclipse.wst.jsdt.core.jsNature</nature>
        -->
    </natures>
</projectDescription>

Hint: on Windows you can use https://github.com/culmat/eExplorer to edit files inside closed Eclipse project

There is also Terminals that comes with Enide Studio