When I'm opening a specific class using ctrl + right click I should be redirected to a window with the java sources which contains all the lines and the appropriate comments. But instead I get a window with the decompiled .class file.
I have tried to deactivate the decompiler plugin but it does not work.
If I add http://docs.oracle.com/javase/8/docs/api to Project Structure -> SDKs -> Documentation Paths I can get an overview of the class or method's I'm rolling over, but still can't open the right source file.
Any ideas?
When navigting to sources, IDEA will first go to attached sources. If not present, it will decompile the class and display it.
Try the following troubleshooting to track down the issue:
1. Make sure the sources are properly attached.
For libraries, Open the Project Structure dialog (Ctrl+Alt+Shift+S or ⌘;) and sel4ct "Libraries" on the left under "Project Settings". Find the library in question, and select it. It will show if the source is attached. You mentioned you have Maven's "Automatically download" sources/documentation both checked. So for any maven libraries that have source available, it should be listed.
If it is not listed or is in red, run "Download Sources" or "Download Sources and Documentation" from the Maven tool window. If the source is till in red, it likely means it is not available for that artifact in the maven repository. Use Maven Search to verify such.
For the JDK, select "SDKs" in the Project Structure dialog, find the JDK, and then select the "Sourcepath" tab. Make sure the {jdk-home}/src.zip file is listed.
IDEA should automatically set this when you add the JDK, but if not, add it.
2. Make sure the source JAR/ZIP file is not corrupt
Navigate to the archive in explorer/finder and make sure it can be opened and viewed.
3. Refresh IDEA's Caches
It's possible that IDEA's caches/indexes are corrupted. As such, IDEA is not "seeing" the link between the class and the source code. Go to File > Invalidate Caches / Restart...". Invalidate the caches and restart IDEA. Wait for IDEA to finish re-indexing the project and libraries (watch the progress in the bottom right of the IDEA window).
One of the above should resolve the issue.
FYI, If you do not want IDEA to decompile code(as a backup to no source being present), to the best of my knowledge (and based on the its help page), the only way to do such is to disable the "Java Bytecode Decompiler" in the Plugins list.
After ensuring my sources were attached, checking the source ZIP, invalidating the IntelliJ cache and restarting, I was still having the same problem.
To fix it, I created the project anew File > New > Project From Existing Sources..., and when I got to the library selection step I deselected the .jars for my own modules.
I'm trying to generate an artifact of my JavaFX application using Intellij but for some reason I always end up having JavaFX packager throwing an access denied error on my output directory.
Generating a simple jar works fine though.
I'm using it on Windows 8.1 with Java 8.
I had the same problem. I kind of solved it:
by ticking the "Build on make" box in the Project Structur Dialog
starting a Run of my Java App in Intellij Idea
Now the executable jar magically appeared in my build folder. God knows why.
I had this problem and solved it by deleting the Artifact from IntellIJ, then deleting the "out/artifact" previously created folder where it tried to build my jar and finally re created an artifact from scratch. For no specific reason it now worked.
I have encountered the same problem recently. I checked the permissions of the directory and can read and write. Later I deleted the artifact and re-created a new one to solve the problem. I hope to help people who have encountered this problem.
I had this problem. I ran into it because When I added artifact with + button in Project Settings->Artifacts, I selected JAR artifact , and change JAR to JavaFx Application from type drop down box on right side pane. Later, I removed this artifact and pressed + button, then selected JavaFx Application from drop down list, then it was builded successfully. My JDK version is 8.
When I call JavaVXPacker from the command line I get the following:
C:\Users\Ingo>javafxpackager -help
javafxpackager.exe has been renamed javapackager.exe.
The original file may be removed in a future release in lieu of javapackager.
Please update your scripts.
...
...
So I guess IntelliJ has to update it's script to re-enable the feature???
(using Windows 10 and JDK Liberica 15+36)
Go to File > Project Structure
Click on Artifacts on the left panel.
Thereafter click on the plus icon to add a Jar From modules with dependencies…
A pop-up will be shown and there you would have to select for the startup class of your project.
Click on OK twice to save the changes.
Lastly go to Build > Build Artifacts... And select build action.
Now your jar will be generated in the out folder of your project.
For a more details guide, please refer to this post
I'm working with intellij idea but I can't see the java source files in the project tree. I see the packages, I can open it, but the class files are not displayed. Any idea? This has worked until a few days ago...
Under the intelliJ IDEA 14.0.3 community edition, upon launch I don't see my project folders. I found by going into
View > Tool Windows > Project
seems to show the folder structure.. Same as ALT + 1
Below the menubar , on the left there is a dropdown which in your case may be showing "packages" now (because you can see the packages). From the same dropdown, select "Project Files" below "SCOPES"
You need to check out the project correctly if you are checking out from SVN repo or you must not have selected correct project folder.
You can also configure your project from File->Project Structure check your Source folder is excluded or not.
Also Alt+1 will give you project structure of files in tree format
Check in "Project Structure" (ctrl+alt+shift+S) if you didn't set your source as "Excluded" (in Modules, sources).
If you are develop a maven project, you could run mvn idea:idea and then open the project in your Intellij, the source files and the project tree would become the shape you like.
I build in maven multiple projects (let's name them A,B,C). Project A uses .jar of project B which uses .jar of project C.
I am modifying the code of all A/B/C projects, (A is MVC app, B are business services and C is some shared layer).
The thing is, in Eclipse/NetBeans I can see all of them at once and it's comfortable to modify them. In IDEA though, I have to open 3 instances (or n instances) of IntelliJ IDEA.
Am I missing something? Is there better approach when using IntelliJ? This is the biggest downside of IntelliJ for me atm.
I think this has improved with recent versions of IntelliJ. In my current version (12.0.2), you can add any number of separate Maven projects to the same "workspace".
The simplest way I've found to do this is to click the little + icon in the "Maven Projects" window (View > Tool Windows > Maven Projects) and then select the additional pom file you want to import.
Step 1: open "Maven Projects"
Step 2: select the project you want to import:
Prequisite
Having all the related projects in the same root directory
can be helpful.
Steps
1) First you create a new Empty project
2) Then you select the root directory of all your projects.
This will create a empty project, with a .idea directory that will simply remember the module organisation we are about to do in the next step
3) Then, in the next window, you import the different projects as modules
4) In the next window, to import each project, simply double click on the build.gradle, or pom.xml
The project will be imported as a new module.
5) Done, you now have all your projects as modules, opened on the same IntelliJ project
Yes, your intuition was good. You shouldn't use three instances of intellij. You can open one Project and add other 'parts' of application as Modules. Add them via project browser, default hotkey is alt+1
In IntelliJ 14.1.2, I did it like following:
Select File->Project Structure->Modules.
Select + and Import Module and select the directory of your project(or directory where pom exists) and click OK.
Follow through the next flow of screens and after you click Finish, you should see the project alongside your existing one.
None of the solutions worked for me, since I am not working on Maven projects. There is a simpler solution. Go to:
File->Project Structure->Modules.
Instead of adding module, simply click the third option (copy). Browse your local directory and select the project you would like to add. Module name will resolve automatically. That's it.
Update: When you want to reopen to project with multiple sub-projects, in order to avoid re-doing steps as described above, just go to
File->Open Recent->'Your Big Project'.
Since macOS Big Sur and IntelliJ IDEA 2020.3.2 you can use "open projects in tabs on macOS Big Sur" feature. To use it, you have to enable this feature in your system settings:
System Preferences -> General -> Prefer tabs [always] when opening documents
After this step, when you will try to open second project in IntelliJ, choose New Window (yes, New Window, not This Window).
It should result with opening new project in same window, but in the new card:
To expand #Neo answer:
after choosing your directory. select import module from external model and choose your model (maven in this case).
Then check keep project files option from next dialog. It will keep all files in original directory.
Your final project structure would be something like this.
Now you can add your module as dependency to other module's pom.xml and if you change the source code of your dependencies, Intellij takes care of updating your project (there is no need to run mvn build manually for dependencies)
new empty project
File -> New -> Module from Existing Sources
For who uses Gradle can also avail the same:
Go to:
1. View --> Tool Windows --> Gradle
2. Click on the + button and add your build.gradle file
Open preference -> appearance & behaviour -> System settings -> select (open project in new window) then apply.
Then you could open and edit multiple projects.
You can use Armory plugin which makes switching between projects comfortable. The default shortcut for Project List is Alt + A.
By default currently opened projects are displayed at the top of this list (with bold style).
Use the button for the add maven projects and go inside the folder of the project. Then, select the pom.xml file and add them in the IntelliJ.
Press "F4" on windows which will open up "Project Structure" and then click "+" icon or "Alt + Insert" to select a new project to be imported; then click OK button...
To Intellij IDEA 2019.2, F4 + click on module, click to + for add any project from your HDD, above this menu yo can edit the IDE with you create the project and more options, very easy
For people not using maven to build and wanting to add a new project (I am using intellij 14.1.3):
Right click the top level folder in the project view, select new ->
Module
Name the module the same name as the project to be added
From the top menu select File->New->Project. Enter the same name as
the new module, same folder locations as well.
Open the Project, and wait for intellij to create the project
structure.
Close this new project, and open the original project the module was
added to in step 2
Depending on your builder, additional steps will be needed to add it to the build process.
For SBT, and in the top level project I modified the Build.scala file to aggregate the new project, and added the project in the SBT projects window. More info on SBT multiproject builds: http://www.scala-sbt.org/0.12.2/docs/Getting-Started/Multi-Project.html
"IntelliJ IDEA 2022.1.1 (Community Edition)" you have to navigate
To Add Exiting Module to same window navigate "File -> New -> Module from Existing Sources" then it will allow you to select pom.xml and then click "Create" button next window then project will be added to your current workspace.
Note :: Who ever switches from Eclipse to Intellij this is the first problem
Assuming they are under the same folder, click File-Open File or Project-<parent folder>.
you can use import module option which will open it just like eclipse in the same navigator.
For IntelliJ Idea 2021.3.3 users, The below solution didn't work for me, although I was selecting my project main folder, I've gotten only the main and test folders imported!
Peoject Structure => Modules => Import module
The solution is:
view => tool Windows => Maven => click the + icon => add the project POM.xml file
I am new to maven and did not understand how I could work with local maven project added through Viktor Nordling's answer and still have a proper dependency in pom.xml file. The answer is simple: intellij first looks at your locally added module and if it doesn't find one it goes to get the project remotely. You can check this by looking at "external libraries" under your project browser when you add or remove maven module.
Hope this helps anyone.
As of release 2019.2, this is as easy as File->Attach Project.
🎉🎉🎉🎉🎉
See: https://youtrack.jetbrains.com/issue/WEB-7968
After importing project into IntelliJ, Go to pom.xml of each module -> right click -> Click on Add as Moven Project. It will add the module as Moven project, do this for all the modules in the Project. Refer this