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vManager crashes when analyzing multiple sessions simultaneously with a fatal error detected by the Java Runtime Environment

When analyzing multiple sessions simultaneously Verisium Manager crashed and reported below error messages:

# A fatal error has been detected by the Java Runtime Environment:
#
#  SIGSEGV (0xb) at pc=0x00007efc52861b74, pid=14182, tid=18380
#
# JRE version: OpenJDK Runtime Environment Temurin-17.0.3+7 (17.0.3+7) (build 17.0.3+7)
# Java VM: OpenJDK 64-Bit Server VM Temurin-17.0.3+7 (17.0.3+7, mixed mode, sharing, tiered, compressed oops, compressed class ptrs, g1 gc, linux-amd64)
# Problematic frame:
# C  [libucis.so+0x238b74]

......

For more details please refer to the attached log file "hs_err_pid21143.log".

Two approaches were tried to solve this problem but neither has worked.
Method.1:

Setting larger heap size of Java process by "-memlimit" options.For example "vmanager -memlimit 8G".

Method.2:

Enlarging stack memory size limit of the Coverage engine by setting "IMC_NATIVE_STACKSIZE" environment variable to a larger value. For example "setenv IMC_NATIVE_STACKSIZE 1024000"

According to "hs_err_pid*.log" it is almost certain that the memory overflow triggered Java's CrashOnOutOfMemoryError and caused Verisium Manager to crash. There are some arguments about memory management of Java like "Xms, Xmx, ThreadStackSize, Xss5048k etc" and maybe this problem can be fixed by setting these arguments during analysis. However, how exactly does Verisium Manager specify these arguments during analysis? I tried to set them by the form of setting environment variables before analysis but it didn't work in analysis and their values didn't change.

Is there something wrong with my operation or is there a better solution?

Thank you very much.




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Angular Removing Unused CSS and Obfuscate JavaScript in Post Build Process

Nowadays most applications are developed based on large CSS libraries like Bootstrap, Tailwind CSS, etc.. and sometimes multiple frameworks. But your application components are not using all of the styles and it adds more weight to the application performance. This post will explain the Angular post-build process to remove unused CSS and hidden JavaScript files that enhance the application security and definitely improve the app loading time and save the overall bandwidth cost.





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React Removing Unused CSS and Obfuscate JavaScript in Post Build Process

This is continues of my previous post about how to remove unused CSS and convert unclear JavaScript to protect your source code in the post-build process. If you are using CSS libraries like Bootstrap, Tailwind CSS, etc.. and sometimes multiple frameworks. But your application components are not using all of the styles and it adds more weight to the application performance. This post will explain how to configure the React post-build process to remove unused CSS and hidden JavaScript files that enhance the application security and definitely improve the app loading time and save the overall bandwidth cost.





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Jokes: Java के 4 वर्जन पूछे जाने पर संता ने दिया ऐसा जवाब, इंटरव्यू लेने वाले हो गए बेहोश, पढ़ें मजेदार जोक्स

JOKES: स्वास्थ्य के लिहाज से हंसना बेहद जरूरी होता है। हंसने से लोग स्वस्थ रहते हैं। भाग दौड़ भरी जिंदगी के चलते लोगों का हंसना अब गायब ही हो रहा है। आपके लिए कई गुदगुदाने और मजेदार जोक्स लेकर




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Creating a JavaScript promise from scratch, Part 7: Unhandled rejection tracking

When promises were introduced in ECMAScript 2015, they had an interesting flaw: if a promise didn’t have a rejection handler and was later rejected, you would have no idea. The rejection silently occurred behind the scenes and, therefore, could easily be missed. The best practice of always attaching rejection handlers to promises emerged due to...




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Introducing Env: a better way to read environment variables in JavaScript

If you write server-side JavaScript, chances are you’ve need to read information from environment variables. It’s considered a best practice to share sensitive information, such as access tokens, inside of environment variables to keep them secure. However, the way environment variables are read from JavaScript is error-prone in subtle ways that might take you hours...




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The lazy-loading property pattern in JavaScript

Traditionally, developers have created properties inside of JavaScript classes for any data that might be needed within an instance. This isn’t a problem for small pieces of data that are readily available inside of the constructor. However, if some data needs to be calculated before becoming available in the instance, you may not want to...




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Extract a Number from a String with JavaScript

User input from HTML form fields is generally provided to JavaScript as a string. We’ve lived with that fact for decades but sometimes developers need to extract numbers from that string. There are multiple ways to get those numbers but let’s rely on regular expressions to extract those numbers! To employ a regular expression to […]

The post Extract a Number from a String with JavaScript appeared first on David Walsh Blog.




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Detect Caps Lock with JavaScript

Anyone is capable of having their caps lock key on at any given time without realizing so. Users can easily spot unwanted caps lock when typing in most inputs, but when using a password input, the problem isn’t so obvious. That leads to the user’s password being incorrect, which is an annoyance. Ideally developers could […]

The post Detect Caps Lock with JavaScript appeared first on David Walsh Blog.




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UITableView in JavaScript, list view with re-usable cells using flexbox

If you’re familiar with iOS development you will know that a UITableView is very efficient when displaying a list of data. A simplification of what it does is display enough cells to fill the viewport plus a few more either side. As you scroll it re-uses cells that are now out of the viewport so … Continue reading "UITableView in JavaScript, list view with re-usable cells using flexbox"




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‘Samajavaragamana’ movie review: Sree Vishnu and Naresh shine in this humorous family drama

Director Ram Abbaraju’s ‘Samajavaragamana’ offers plenty of laughs that override the film’s shortcomings. Sree Vishnu and Naresh are a riot




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Fading in a Page on Load with CSS & JavaScript

When I visit a page, I get annoyed when I try to interact with elements while the website is still loading. Often stuff is moving around, fonts aren’t quite loaded, and it feels broken.

I know nowadays we’re obsessed in this industry with gaining every millisecond in page performance. But in a couple of projects that I recently overhauled, I added a subtle and clean loading mechanism that I think makes the experience nicer, even if it does ultimately slightly delay the time that the user is able to start interacting with my page.

The post Fading in a Page on Load with CSS & JavaScript appeared first on Impressive Webs.




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How to Disable JavaScript in Almost Any Browser

In 2022 I think it’s still important as a web developer to test your how your websites look and function when users disable JavaScript in their browser. Developing in this way used to be a cornerstone of Progressive Enhancement and can be handy on both desktop or mobile.

I still find myself wanting disabling JavaScript on pages I visit. Sometimes it’s to test a page I’m working on, but in other instances it’s simply to visit a web page that’s not functioning correctly and I want to see if JavaScript is the culprit.

The post How to Disable JavaScript in Almost Any Browser appeared first on Impressive Webs.




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593: Beep & Texts, Tumblr, JavaScript & Web Components, & Cool Blog Post Ideas

Thoughts on smashing all communication messaging apps together, what's happened to Tumblr under Automattic, what the situation is with native web components and JavaScript, and looking at a list of types of blog posts.




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641: Passkey Usage, Writing Code with a Bot, and What’s Up With Java?

We've got a few leftovers from Halloween to process, what's been happening with Passkeys in late 2024, have you tried to write HTML faster than a bot can suggest it to you, CSS anchor positioning and popover polyfills, scroll driven animation thoughts, CSS nesting, and what's the reason for Java?




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Generating Random Mazes with JavaScript

I didn't get a chance to hit the pumpkin patch this year, so I missed out on seeing any corn mazes. To make up for it, I decided to make some mazes of my own! Being a programmer, I over-engineered it and built a random maze generator!




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Javadekar seeks Kerala government report on Waqf claims




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Add Class To Body If JavaScript Is Enabled

This snippet is super small but is super handy. It detects to see if JavaScript is enabled on the users browser. If yes, a class will be added to the <body> tag Adds the class yourClassName to <body> tag if Javascript is enabled.

The post Add Class To Body If JavaScript Is Enabled appeared first on Web Design Weekly.




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Java Developer

Company: ILabz Technology LLP
Experience: 3 to 8
location: Chennai
Ref: 24481861
Summary: Java, Spring, Hibernate, Spring boot




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JAVA DEVELOPER - MULTI THREADING

Company: Resource Access Management Solutions Private Limited
Experience: 6 to 8
location: India
Ref: 24424286
Summary: Company: Global Investment Bank Experience: 6 - 8 Yrs Job Location: Bangalore Key Skills: Java, SQL, Multi-threading Must Have Skills: Java, SQL, Multi-threading INDUSTRY Banking & Financial ROLE Java....




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SCALA - JAVA DEVELOPER

Company: Resource Access Management Solutions Private Limited
Experience: 0 to 50
location: Chennai
Ref: 24410443
Summary: Company: Leading IT Company Experience: 3 - 6 Yrs Job Location: Chennai Key Skills: Java Scala Must Have Skills: Slick Microservices Mockito Docker INDUSTRY IT-Software / Software Services ....




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Full Stack Java Developer - Chennai

Company: Job Store Consulting
Experience: 2 to 5
location: Chennai
Ref: 24038750
Summary: Job Description : Openings for Java Developer Mid/Senior Full Stack Java Developer Experience: 2+ years Skills: Java, Spring, Hibernate, MySQL, HTML/CSS3/Javascript Salary up to4.5 LPA For more details Contact: HR Meera @8489435355 /....




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M 3.7 SOUTH OF JAVA, INDONESIA

Magnitude   M 3.7
Region  SOUTH OF JAVA, INDONESIA
Date time  2020-05-10 03:37:47.0 UTC
Location  9.17 S ; 112.50 E
Depth  29 km
















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Whisper This, But Java Deserialization Vulnerability Affects More Libraries









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Bulletproof JavaScript benchmarks

The following article, written by John-David Dalton and yours truly, was published as part of the Performance Calendar series in 2010.




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How I detect and use `localStorage`: a simple JavaScript pattern

By now, everyone knows how to detect and use localStorage. However, I’ve been using a seemingly unconventional (but slightly more efficient) technique to do so. Since I haven’t seen it documented anywhere else, here goes!




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JavaScript `foo.prototype.bar` notation

As a follow-up to the post documenting a few popular HTML element + attribute notations, here’s a similar one about JavaScript.




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JavaScript character escape sequences

Having recently written about character references in HTML, I figured it would be interesting to look into JavaScript character escapes as well.




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JavaScript’s internal character encoding: UCS-2 or UTF-16?

Does JavaScript use UCS-2 or UTF-16 encoding? Since I couldn’t find a definitive answer to this question anywhere, I decided to look into it. The answer depends on what you’re referring to: the JavaScript engine, or JavaScript at the language level.




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Valid JavaScript variable names in ES5

Did you know var π = Math.PI; is syntactically valid JavaScript? I thought this was pretty cool, so I decided to look into which Unicode glyphs are allowed in JavaScript variable names, or identifiers as the ECMAScript specification calls them.




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Unquoted property names / object keys in JavaScript

Fun fact: var foo = { H̹̙̦̮͉̩̗̗ͧ̇̏̊̾Eͨ͆͒̆ͮ̃͏̷̮̣̫̤̣Cͯ̂͐͏̨̛͔̦̟͈̻O̜͎͍͙͚̬̝̣̽ͮ͐͗̀ͤ̍̀͢M̴̡̲̭͍͇̼̟̯̦̉̒͠Ḛ̛̙̞̪̗ͥͤͩ̾͑̔͐ͅṮ̴̷̷̗̼͍̿̿̓̽͐H̙̙̔̄͜: 42 }; is valid JavaScript. It may not be immediately obvious, but the real surprise here is that the Cthulhu-esque property name is not surrounded by quotes. Intrigued by this, and having written about the similar topic of JavaScript identifiers before, I decided to look into valid property names in JavaScript. When do they need to be quoted? When can the quotes be omitted? And in which cases can dot notation be used instead of bracket notation to get or set a property based on its name?




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Reserved keywords in JavaScript

Looking for a list of all reserved words in JavaScript? You’ve come to the right place. I recently needed such a list myself, but ended up comparing the reserved keywords in all ECMAScript versions as well. The result is listed below, for future reference.




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JavaScript has a Unicode problem

The way JavaScript handles Unicode is… surprising, to say the least. This write-up explains the pain points associated with Unicode in JavaScript, provides solutions for common problems, and explains how the ECMAScript 6 standard improves the situation.