Classes calling methods from other classes - intellij-idea

I have got a several different classes under the same package in intellij idea,the problem is classes cannot recognize the other class' methods and throws cannot resolve symbol, have tried invalidating cache and restarting to no avail.

The question is prety unclear but I will try to guess what the problem is.
Have you marked the root folder of your project as sources root folder? This should help intellij to recognize the classes as one project. It should be done from:
right click over the folder -> mark directory as -> sources root.
When done the folder icon will be colored in blue and intellij should recognize the module(project) structure

Related

How to link folder/packages in intellij?

I come with this odd question, after look on the intelliJ forums I have no results.
I started to work in a project that has multiple gradle modules.
There is one module that has another module referencing it.
Lets say I have ModuleA with all my classes, each class I add on a new package appears also in ModuleB
When I checked on the folders of ModuleB I noticed a weird icon.
Checking the folder (right-click) I can see the option:
Go to Link Target
That basically takes me to ModuleA's folder configuration.
I could find no gradle configuration that makes these references or how to reproduce it.
Any idea how?
These are Symbolic links and are created in Bash. This doesn't have anything to do with gradle.
More info here

"Class already exists" error in IntelliJ on Groovy class

in IntelliJ (2016.2 and previous) we have our Groovy classes marked red with the error "class already exists".
I think we can exclude that the cause is the stub-generation, as this is deactivated.
Probably it's caused in our constellation: We have included our compiled groovy (and java) classes in a jar that is registered as dependency.
Dependency MyProduct.jar contains com.mycompany.MyGroovyClass
Our source contains com.mycompany.MyGroovyClass
The error disappears if the dependency is registered with Test-Scope, in all other scopes the error appears.
However, in our structure we kinda have to include the compiled classes in a compile scope, as we want to avoid that each developer needs to compile all classes (I know about the compile in background ability, but we have a constellation that prevents this from working).
We have no errors in com.mycompany.MyJavaClass which exists as well in source and in MyProduct.jar.
Any ideas on how we can solve this?
We've been suffering the same issue, it seems to be that IntelliJ registers the Java class, but also the Groovy class, and because of that it is showing that message (BTW, we are using a Maven Project).
So we ended up by going to the target folder -> right click -> Mark Directory As -> Excluded. Then, this setting will be saved on the IML file, and it won't happen again.
Hope it works for your as well!
Cheers
I'm using gmavenplus-plugin:1.5
After marking target/generated-sources/generated-sources/main as "Excluded", The error disappeared. I even did "invalidate cache and restart", It persists the setting. This is great. Intellij 2017.1.5
We have two ways to fix this issue
Exclude Stub Directory
target folder -> generated-sources -> groovy-stubs -> Right click main folder -> Mark Directory As -> Excluded
Remove generateStubs goal from gmaven plugin
Remove <goal>generateStubs</goal> from gmavenplus plugin
Make sure you Mark the src folder as Sources Root and do the same for the test folder
Then delete the target folder (most likely it's marked in yellow) and don't worry it won't delete any code from your project
If the issue persist, proceed to go to File -> Invalidate Cache/Restart

Some classes can't be resolved when compiling Apache Drill?

I built the Drill project according to the wiki specification
but, the project has some errors. Some classes (BigIntVector, BitHolder,BigIntHolder) can't be resolved and the workspace don't really contain these class files. Any suggestions as to what's going on?
These clases are generated during build.
exec/java-exec/target/generated-sources/org/apache/drill/exec/expr/holders/BigIntHolder.java
There is a problem in that the Maven import into eclipse results in target/generated-sources/org being added to the Source Folder build path. I have found that in the two cases, comon and java-exec, if you remove these folders from the source folder build path and add them as target/generated-sources this will help.
This is a workaround, there is obviously a misconfigured pom.xml somewhere.

IntelliJ IDEA and PlayFramework modules

After a lot of good comment about IDEA, I decided to give it a try. I downloaded the Community Edition and would like to use it for PlayFramework development.
I have followed official documentation and some other information gathered around, but I have not succeeded completely. When using a project with differents (play) modules, the different classes are not found.
For example when using Secure module, IDEA keeps complaining about not finding Secure.class. It has to be a classpath issue. I tried to attach Java source & classes ($PLAY/modules/secure/) in module settings (F4), class is still not found. Did I miss something?
BTW, I have done a play dependencies and play idealize, which seems to add another module Secure into project in IDEA.
Thanks,
The answer is to run the following:
play deps
play idealize
This forces the IDEA .iml project file to be refreshed with the updated class path entries for the new module (in this case Secure).
A issue I came across using IntelliJ and Playframework.
The log4j.properties file or log4j.xml file are not in classpath by default. You have to add the conf as a source folder in module settings.
You need to add the Secure module you have created in IDEA as a dependency to the main application module:
Go to File -> Project Structure
Choose the main module
Choose the Dependencies tab
Click Add -> Module Dependency
Choose the IDEA Module you created for the Play Secure module
Also make sure you have the correct source path selected for the Secure module in IDEA.

"Duplicate class found" - IntelliJ and .class files

I recently imported one of our company's project into IntelliJ Idea (10.5.1). We build and run the project using an ant build script and IntelliJ supports that just fine.
However, IntelliJ seems to have a distinct problem when the compile output directory equals the source code directory, ie .class files are placed in the same directories as their corresponding .java sources.
(Note that I am aware that is not a proper way to go, but tell my boss that. This project is over 15 years old and correspondingly large, too many things depend on it to be this way, there is nothing I can do about that.)
So once things are compiled, IntelliJ detects the .class files and adds them to the project tree. The problem here is that it considers them class declarations, thus I get a "duplicate class found" message for each and every class. This doesn't make me unable to work, but it is extremely annoying as you may guess.
I tried making the IDE ignore .class files, but apparently that makes it not load any classes at all, including the JRE runtime and anything else located inside of .jar files.
Is there any way to make IntelliJ Idea ignore .class files which are in the same location as their .java sources?
Make sure that you've configured the output directory to the source directory, disable the Exclude of the output directory to see your files.
I coped with this same problem when cloning a project from Bitbucket. To solve it in IntelliJ:
Project Structure > Modules > Source > Source folder > <<"Eliminate the unwanted source folder">>
In my case, I had non-implemented classes in one source folder and a second source folder with the implemented classes (same class names).
I deleted one, built again, and the problem got solved.
Give it a try!