Error Prone
eclipse.jdt.ls
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Error Prone | eclipse.jdt.ls | |
---|---|---|
16 | 30 | |
6,716 | 1,644 | |
0.6% | 3.0% | |
9.4 | 9.4 | |
6 days ago | 5 days ago | |
Java | Java | |
Apache License 2.0 | Eclipse Public License 2.0 |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Error Prone
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Any library you would like to recommend to others as it helps you a lot? For me, mapstruct is one of them. Hopefully I would hear some other nice libraries I never try.
error-prone is good for some extra static analysis.
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How to use Java Records
A special kind of validation is enforcing that record fields are not null. (Un)fortunately, records do not have any special behavior regarding nullability. You can use tools like NullAway or Error Prone to prevent null in your code in general, or you can add checks to your records:
- Prusti: Static Analyzer for Rust
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Why is `suspend` a language keyword, but @Composable and @Serializable are annotations
I am all in favour to more third side libraries adding functionalities, like Lombok, Manifold and error prone. As well as smaller projects like this shameless plug and what appears in this list
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Picnic loves Error Prone: producing high-quality and consistent Java code
If only Google didn't suck when it came to Java9+ support... https://github.com/google/error-prone/issues/2649
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What does the future hold for Project Amber?
I haven't used it. I use Google's ErrorProne + Lombok to prevent NPEs in java.
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Plans for Compile-time Null Pointer Safety?
Take a look at NullAway, a plugin for Error Prone.
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What I miss in Java, the perspective of a Kotlin developer
For some of this stuff, there are compiler extensions that allow extra type checking to be added e.g. Google Error-Prone: https://github.com/google/error-prone with stuff like: https://errorprone.info/bugpattern/ReturnMissingNullable.
Doesn't help you with third party libraries, but across an org applying that rule (and others!) typically ensures some consistency.
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A guide on how to improve your coding skills with static code analysis.
How to build a static analysis plugin. Google has a framework for Java with a good tutorial.
- Error Prone 2.11.0 Released. Requires JDK11+
eclipse.jdt.ls
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2.5 Million Java Developers on Visual Studio Code. Microsoft and Red Hat shares Joint Roadmap for Next 6 Months Together
Thanks Eclipse : https://github.com/eclipse-jdtls/eclipse.jdt.ls
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How to use nvim-jdtls for Java and nvim-lspconfig for everything else?
I installed eclipse jdtls which worked for Java, but I was not able to go to definitions for methods/classes outside of my project (ie, libraries and such, something like in IntelliJ where you can go to the definition or implementation for the library code), so I thought it may be a limitation of nvim-lspconfig
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jdtls spams messages in LazyVim
return { { "neovim/nvim-lspconfig", dependencies = { "mfussenegger/nvim-jdtls", init = function() require("lazyvim.util").on_attach(function(_, buffer) -- stylua: ignore vim.keymap.set( "n", "di", "lua require'jdtls'.organize_imports()", { buffer = buffer, desc = "Organize Imports" } ) vim.keymap.set( "n", "dt", "lua require'jdtls'.test_class()", { buffer = buffer, desc = "Test Class" } ) vim.keymap.set( "n", "dn", "lua require'jdtls'.test_nearest_method()", { buffer = buffer, desc = "Test Nearest Method" } ) vim.keymap.set( "v", "de", "lua require('jdtls').extract_variable(true)", { buffer = buffer, desc = "Extract Variable" } ) vim.keymap.set( "n", "de", "lua require('jdtls').extract_variable()", { buffer = buffer, desc = "Extract Variable" } ) vim.keymap.set( "v", "dm", "lua require('jdtls').extract_method(true)", { buffer = buffer, desc = "Extract Method" } ) vim.keymap.set( "n", "cf", "lua vim.lsp.buf.formatting()", { buffer = buffer, desc = "Format" } ) end) end, }, ---@class PluginLspOpts opts = { ---@type lspconfig.options servers = {}, -- you can do any additional lsp server setup here -- return true if you don't want this server to be setup with lspconfig ---@type table setup = { -- example to setup with typescript.nvim jdtls = function(_, opts) local project_name = vim.fn.fnamemodify(vim.fn.getcwd(), ":p:h:t") -- vim.lsp.set_log_level('DEBUG') local workspace_dir = "/home/jake/.workspace/" .. project_name -- See `:help vim.lsp.start_client` for an overview of the supported `config` options. local config = { -- The command that starts the language server -- See: https://github.com/eclipse/eclipse.jdt.ls#running-from-the-command-line cmd = { "java", -- or '/path/to/java17_or_newer/bin/java' "-javaagent:/home/jake/.local/share/java/lombok.jar", -- '-Xbootclasspath/a:/home/jake/.local/share/java/lombok.jar', "-Declipse.application=org.eclipse.jdt.ls.core.id1", "-Dosgi.bundles.defaultStartLevel=4", "-Declipse.product=org.eclipse.jdt.ls.core.product", "-Dlog.protocol=true", "-Dlog.level=ALL", -- '-noverify', "-Xms1g", "--add-modules=ALL-SYSTEM", "--add-opens", "java.base/java.util=ALL-UNNAMED", "--add-opens", "java.base/java.lang=ALL-UNNAMED", "-jar", vim.fn.glob("/usr/share/java/jdtls/plugins/org.eclipse.equinox.launcher_*.jar"), "-configuration", "/usr/share/java/jdtls/config_linux", "-data", workspace_dir, }, root_dir = require("jdtls.setup").find_root({ ".git", "mvnw", "gradlew" settings = { java = {}, }, } require("jdtls").start_or_attach(config) return true end, -- Specify * to use this function as a fallback for any server -- ["*"] = function(server, opts) end, }, }, }, }
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Minecraft modding without the use of intellij
You can absolutely just use Gradle on the command line, and use a language server to get code intelligence in pretty much any editor you like. IntelliJ is very nice, especially for refactoring, but it doesn't have a giant advantage over any other editor, as long as you're sticking to mostly Java.
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Where does the dislike/hate for Java come from?
Try neovim. Builtin support for language servers which provide the basis for IDE functionality, autocomplete, auto import, code actions, refactoring, etc. I believe VSCode uses jdtls on the backend and you can use the same thing with neovim.
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java 19 in latest eclipse IDE
Is seems like valid manual to start language server here https://github.com/eclipse/eclipse.jdt.ls. Not sure what you mean by "starting it with other editors" though. It should be covered by editor own integration with the given LS.
- Is VIM a trap?
- (Discussion) Which IDE is best for Java
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What do you tells VSCode and Jetbrains naysayers
But all of the above to say that Emacs can have the ability to some of if not more than VSCode. As others have said, the Jetbrains IDEs are a different story. They're built to actually understand the code you're writing. It's quite possible, with features like auto-insert and skeletons, to replicate some of the functionality that, say, IntelliJ does. For example, say you find-file into a new file for some Java project. When you first enter the buffer, you could setup a prompt to create a class, enum, interface etc. and then upon a selection, you have the basic relevant code for whatever the selection was made auto-inserted. Or you could just quit the prompt with C-g. Granted that takes some time to set up as well as recreating other smaller features that IntelliJ has. JDTLS can do some of this, but at the end of the day it's not a replacement for IntelliJ and I don't think JDTLS intends to be such.
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Picnic loves Error Prone: producing high-quality and consistent Java code
Just the other day I tested VS Code Java again and apparently the Red Hat team that did the Java language support has gotten some level of null analysis turned on now. Thus I assume the Eclipse LSP https://github.com/eclipse/eclipse.jdt.ls has that support now.
What are some alternatives?
Spotbugs - SpotBugs is FindBugs' successor. A tool for static analysis to look for bugs in Java code.
nvim-jdtls - Extensions for the built-in LSP support in Neovim for eclipse.jdt.ls
SonarQube - Continuous Inspection
coc-java - Java extension for coc.nvim
PMD - An extensible multilanguage static code analyzer.
coc.nvim - Nodejs extension host for vim & neovim, load extensions like VSCode and host language servers.
Checkstyle - Checkstyle is a development tool to help programmers write Java code that adheres to a coding standard. By default it supports the Google Java Style Guide and Sun Code Conventions, but is highly configurable. It can be invoked with an ANT task and a command line program.
IntelliJIDEA-Delightful - A charming and dazzling IntelliJ IDEA configuration!
FindBugs - The new home of the FindBugs project
NeoVim-Delightful - A charming and dazzling NeoVim configuration!
infer - A static analyzer for Java, C, C++, and Objective-C
vscode-java - Java Language Support for Visual Studio Code