unsafe | Assorted java classes that make use of sun.misc.Unsafe | Runtime Evironment library

by bramp Java Version: Current License: BSD-2-Clause

X-Ray Key Features Code Snippets(3)Community Discussions(10)Vulnerabilities Install Support

kandi X-RAY | unsafe Summary

unsafe is a Java library typically used in Server, Runtime Evironment applications. unsafe has no bugs, it has no vulnerabilities, it has build file available, it has a Permissive License and it has high support. You can download it from GitHub, Maven.

by Andrew Brampton (bramp.net). This is a collection of tools that make use of the sun.misc.Unsafe class. This Unsafe class allows direct access to memory within the JVM, which is extremely dangerous, but fun :).

Support

Quality

Security

License

Reuse

Support

unsafe has a highly active ecosystem.

It has 83 star(s) with 25 fork(s). There are 9 watchers for this library.

It had no major release in the last 6 months.

There are 1 open issues and 2 have been closed. On average issues are closed in 0 days. There are 1 open pull requests and 0 closed requests.

It has a negative sentiment in the developer community.

The latest version of unsafe is current.

Quality

unsafe has no bugs reported.

Security

unsafe has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

License

unsafe is licensed under the BSD-2-Clause License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

unsafe releases are not available. You will need to build from source code and install.

Deployable package is available in Maven.

Build file is available. You can build the component from source.

Installation instructions, examples and code snippets are available.

Top functions reviewed by kandi - BETA

kandi has reviewed unsafe and discovered the below as its top functions. This is intended to give you an instant insight into unsafe implemented functionality, and help decide if they suit your requirements.

Prints the memory layout
Prints out the object
Returns the size of the specified object
Returns the size of an instance s header
Applies the method signature
Builds a copy stack
Build the stack manipulation
Prints the address part of an address as an address
Dump a byte array to a PrintStream
Gets profiling results
Copies src address to dest
Copies this buffer to the given destination object
Returns the object at the given address
Create a Unsafe instance
Removes the element at the specified index
Sets up the benchmark
Constructs a new Copier using the provided UnsafeInstance
Main entry point
Locates the appropriate accessor for the given type
Copies from srcAddress to dest field
Build the java argument list
Calculate the memory usage
Inserts the specified element at the specified position
Copies this address to the given destination address
Set element at index
Swaps two elements

Get all kandi verified functions for this library.

unsafe Key Features

No Key Features are available at this moment for unsafe.

unsafe Examples and Code Snippets

Returns whether the given op is unsafe .

python

Lines of Code : 17

License : Non-SPDX (Apache License 2.0)

Copy

def unsafe_scalar_trace(op):
    """Return true if scalar output tensor from Op is not safe to be traced."""

    # Tracing the following causes cycle in the graph on TPU.
    if op.type in ('LoopCond', 'Enter', 'Merge', 'Const',
                   '

Returns the Unsafe object

java

Lines of Code : 10

License : Permissive (MIT License)

Copy

private static Unsafe getUnsafe() {
        try {
            Field field = Unsafe.class.getDeclaredField("theUnsafe");
            field.setAccessible(true);

            return (Unsafe) field.get(null);
        } catch (Exception e) {
            t

Check if an op is unsafe .

python

Lines of Code : 8

License : Non-SPDX (Apache License 2.0)

Copy

def unsafe_op(op):
    """Returns True if this op is not safe to be traced."""

    # Reasons for not including following op types:
    #    Assign: cause incorrect result with CPU tracing.
    if op.type == 'Assign':
      return True
    return Fal

Community Discussions

Trending Discussions on unsafe

importing the package net.jodah.typetools, unsafe types/methods isn't working (assuming because of missmatched java version)

Docker: EACCES: permission denied, mkdir '/app/node_modules/.cache'

fltk: failed to resolve GlutWindow

Use stack memory as heap memory without UB

Angular install doesn't recognize node

Get C FILE pointer from bytes::Bytes in Rust

Why Headers Preventing mail from sending?

Install package Graphframes using spark-shell

Can I use actors in Swift to always call a function on the main thread?

React native firebase - android not able to build

QUESTION

importing the package net.jodah.typetools, unsafe types/methods isn't working (assuming because of missmatched java version)

Asked 2021-Jun-14 at 06:17

The error I'm getting in eclipse:

Access restriction: The method Unsafe.{the methods} is not API (restriction from required library '{path to jdk1.8.0_291}/jre/lib/rt.jar')

and

Access restriction: The Type Unsafe is not API. (restriction from required library '{path to jdk1.8.0_291}/jre/lib/rt.jar')

Using JDK 8, for an old version of a game I'm modding. Any answers are appreciated, thanks!

...

ANSWER

Answered 2021-Jun-14 at 06:17

You can make Unsafe accessible by defining an access rule.

Open the project "Properties" and go to the "Libraries" page.

Expand the "JRE System Library" section in the list and you should be able to select an "Access Rules" entry.

Click the "Edit..." button to define a new access rules. Enter the rule:

Source https://stackoverflow.com/questions/67961888

QUESTION

Docker: EACCES: permission denied, mkdir '/app/node_modules/.cache'

Asked 2021-Jun-13 at 20:05

I encountered a permission error while trying to build a docker container in a React app.
I tried to make use of the community answers, but didn't help.
Following related discussion I tried:

I get the current user: id -un
tried this: sudo chown -R myUser:myUser /usr/local/lib/node_modules
this also threw the same error: sudo chown -R ownerName: /usr/local/lib/node_modules
same with this: sudo chown -R $USER /usr/local/lib/node_modules
adding a user didn't help: sudo chown -R $USER /app/node_modules
tried to give permission installing this: sudo npm install -g --unsafe-perm=true --allow-root
another try was to remove node_modules and install specifying sudo: sudo npm install

Adding this to docker-compose file, didn't help either:

...

ANSWER

Answered 2021-May-22 at 09:36

You shouldn't be mounting your volumes. These lines should be removed from your docker-compose

Source https://stackoverflow.com/questions/67639482

QUESTION

fltk: failed to resolve GlutWindow

Asked 2021-Jun-13 at 12:27

I'm trying to follow example of fltk application which uses openGl, but the build is not functioning:

...

ANSWER

Answered 2021-Jun-11 at 16:12

Check your imports which are missing from that snippet. Also if you’re not enabling the enable-glwindow feature, you should, try changing your Cargo.toml to include the missing feature:

Source https://stackoverflow.com/questions/67939982

QUESTION

Use stack memory as heap memory without UB

Asked 2021-Jun-12 at 21:43

I am working in an environment where I cannot use heap memory but only stack memory. To not be constrained by the #[no_std] enviroment I tried to use stack memory as heap memory with the linked-list-allocator crate. This was my approach.

...

ANSWER

Answered 2021-Apr-02 at 10:11

After looking into the code and finding what looks a lot like the default entry point I'll put what I think is the confirmation of my guess as an answer: the global_allocator must be fully initialised before main, because the default entry point relies on it and allocates: https://github.com/rust-lang/rust/blob/master/library/std/src/rt.rs#L40-L45

Source https://stackoverflow.com/questions/66917240

QUESTION

Angular install doesn't recognize node

Asked 2021-Jun-12 at 16:10

I have been trying to install Angular but everytime this part:

@angular/cli@12.0.3 postinstall C:\Users\Marco\AppData\Roaming\npm\node_modules@angular\cli

node ./bin/postinstall/script.js

Seems to throw an error. I'm not sure if I need this to work or not so I'll leave the last couple lines of the log here.

...

ANSWER

Answered 2021-Jun-12 at 16:10

I fixed it by going to the actual file location of script.js and running the node command with that path. Like this:

node AppData/Roaming/npm/node_modules/@angular/cli/bin/postinstall/script.js

Actually that only helped a little bit. The problem was I was trying to install Angular using ConEmu GitBash and I should've been using cmd.

Source https://stackoverflow.com/questions/67913160

QUESTION

Get C FILE pointer from bytes::Bytes in Rust

Asked 2021-Jun-12 at 13:29

I would like to read a GRIB file downloaded from server using ecCodes library in Rust. However, my current solution results in segmentation fault. The extracted example, replicating the problem, is below.

I download the file using reqwest crate and get the response as Bytes¹ using bytes(). To read the file with ecCodes I need to create a codes_handle using codes_grib_handle_new_from_file()², which as argument requires *FILE usually get from fopen(). However, I would like to skip IO operations. So I figured I could use libc::fmemopen() to get *FILE from Bytes. But when I pass the *mut FILE from fmemopen() to codes_grib_handle_new_from_file() segmentation fault occurs.

I suspect the issue is when I get from Bytes a *mut c_void required by fmemopen(). I figured I can do this like that:

...

ANSWER

Answered 2021-Jun-12 at 13:29

1- Try changing

Source https://stackoverflow.com/questions/67948101

QUESTION

Why Headers Preventing mail from sending?

Asked 2021-Jun-12 at 08:21

This might sound similar like previously asked questions but trust me it's not

I Was trying to send an email that uses an HTML template via PHP mail() function from Localhost and a Hostinger Server but they created different problems.

On localhost the email was being sent as plain text although there were headers
...

ANSWER

Answered 2021-Jun-12 at 07:28

The sender information should be inside the headers

Hence, please change the following lines:

Source https://stackoverflow.com/questions/67946448

QUESTION

Install package Graphframes using spark-shell

Asked 2021-Jun-11 at 16:27

I am trying to install PySpark package Graphframes using spark-shell :

...

ANSWER

Answered 2021-Jun-11 at 16:27

The jar has to be downloaded from repos.spark-packages.org. Unfortunately this repo is not checked by pyspark when using the --packages parameter. If your machine has a running Maven installation available, the easiest way to solve the problem is to manually download the jar to your local Maven repository:

Source https://stackoverflow.com/questions/67936986

QUESTION

Can I use actors in Swift to always call a function on the main thread?

Asked 2021-Jun-10 at 15:19

I recently saw that Swift had introduced concurrency support with the Actor model in Swift 5.5. This model enables safe concurrent code to avoid data races when we have a shared, mutable state.

I want to avoid main thread data races in my app's UI. For this, I am wrapping DispatchQueue.main.async at the call site wherever I set a UIImageView.image property or a UIButton style.

...

ANSWER

Answered 2021-Jun-10 at 15:19

Actor isolation and re-entrancy is now implemented in the Swift stdlib. So, Apple recommends using the model for concurrent logic with many new concurrency features to avoid data races. Instead of lock-based synchronisation (lots of boilerplate), we now have a much cleaner alternative. There are a couple of solutions here (see below).

Solution 1

The simplest possible. Apple have made the process much cleaner using the @MainActor method annotation:

Source https://stackoverflow.com/questions/67893376

QUESTION

React native firebase - android not able to build

Asked 2021-Jun-09 at 14:02

For some reason I am unable to build my project. Yesterday everything worked fine, looking at https://firebase.google.com/support/release-notes/android#update_-_april_02_2019 there is a critical update from 5/11/21.

I tried to change the minSdkVersion as suggested but still no resolution.

This is the error:

...

ANSWER

Answered 2021-May-15 at 03:22

I faced this issue recently, and resolving this is pretty easy. you would need to upgrade your native-push-notification. I suggest you change this in your package.json as so native-push-notification version to ^7.3.0. this worked for me. Iho[e this helps.

Source https://stackoverflow.com/questions/67502473

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install unsafe

To build use maven, e.g mvn.

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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