How to debug Solr test cases in Eclipse? - eclipse

When I try to run a Solr test case from Eclipse (Right-Click > Run As > JUnit Test), I get the following printed to the Eclipse console:
Feb 27, 2012 5:21:06 PM org.apache.solr.SolrTestCaseJ4 deleteCore
INFO: ###deleteCore
The whole process runs and exits very quickly without running the actual test case.
I have tried to set my working directory according to the instructions at http://wiki.apache.org/solr/TestingSolr to no avail. Those instructions refer to a directory that doesn't actually exist any more (src/test/test-files), so I tried setting it to solr/core/src/test-files without any luck. I'm using the latest SOLR trunk (as of Feb 27,2012)
What am I missing?

From your own answer looks like you're adding to the classpath a jar which contains the code which should already be in your workspace, thus in your classpath.
The Solr build file has a really handy eclipse target which generates the eclipse project, so you can import it in one click. Just run ant eclipse from the root directory and you shouldn't have problems with classpath.

I hadn't noticed it before, but the test case was throwing an exception saying
A SPI class of type org.apache.lucene.codecs.Codec with name 'Lucene40' does not exist. You need to add the corresponding JAR file supporting this SPI to your classpath.The current classpath supports the following names: []
I solved the problem by adding lucene/build/core/lucene-core-4.0-SNAPSHOT.jar to the classpath in the test case's Run Configuration. It feels like I shouldn't have to do this, but I don't have time to investigate further.
If anyone else can tell me how to remove this dependency, I'll attribute the answer to you.
I also had to set the working directory in my Run Configuration to solr/core/src/test-files

Related

IntelliJ IDEA 13: new Scala SBT project hasn't src directory structure generated

I followed the getting start video on Jetbrains website to setup IntelliJ IDEA 13.1 Community Edition to work with Scala. Scala plugin v0.36.431 had been installed. While I created a new Scala SBT project with wizard, there was no src/ directory structure generated in the project. Only two sbt files were generated:
scala-course/
├── build.sbt
└── project
└── plugins.sbt
From the video and other document I know that there should be a src/ directory structure, including src/main/scala, src/test/scala, etc. sbt uses the same directory structure as Maven for source files by default.
I can create those folders manually and mark it as source root. However it is trivial. So my question is: Why IntelliJ IDEA new project wizard doesn't generate the directory structure as said in document? Was I doing something wrong? I checked the preferences and couldn't find anything that seems related.
Normally it should create these folders automatically. It may take a while though - it takes couple of seconds in my case.
When creating project make sure you have selected Scala -> SBT, then proceed with the wizard.
Once the Finish is clicked, the project will be loaded. This part takes couple of seconds, and I can see no src/main/scala nor src/test/scala generated until it's done. Observe the bottom of the screen to see when it's done.
Once the process is finished, you'll see the folders.
If that's not the case, check the settings. You should have the Create directories for empty content roots automatically checked. You may want to check Use auto-import to automatically propagate changes in the build.sbt.
After changing the settings (if the change is required) you may need to refresh the project, as seen in picture below.
This can also happen if you do not have a JDK selected. For some reason you no longer get the option to select an SDK so you must make sure you have configured this before hand. To fix this do the following:
From the welcome screen, go to
Configure -> Project defaults -> Project structure and add the jdk.
Source:
What's the reason for "Error:Cannot determine Java VM executable in selected JDK"?
Thanks to lpiepiora, with his hint I find out the reason.
Because my sbt is newly installed, there is nothing in ~/.ivy2/cache/ and ~/.sbt/boot/. sbt needed to download required dependencies from repositories on network. It happened that my proxy to internet had something wrong, download stuck.
And also need to notice that, if quit IntelliJ IDEA when sbt is running in background, the next time you'll get error of waiting for some lock file. Have to remove the lock file on filesystem and restart IntelliJ IDEA again.
After fixed the network problem, everything work as promised. It requires several minutes, depends on network speed, to download required jar files. After finished, the src/ directory structure is created.
I followed the instructions in this thread but I had a java crash in the final phase in sbt with the configuration bellow and I think this info maybe useful:
The problem happened with IDEA 2016.2, sbt 0.13.8 (I tried later to import using 0.13.12 but the crash was the same), scala 2.11.8 and ubuntu 16.04.
The only way I could make it work was to use java 8 instead of 9.
error: error while loading package, Missing dependency 'object java.lang.Object in compiler mirror', required by /home/jbamaral/.sbt/boot at xsbt.boot.Boot.main(Boot.scala)
...
stack log here
...
[error] scala.reflect.internal.MissingRequirementError: object java.lang.Object in compiler mirror not found.

Running tests on Intellij: Class not found

I'm evaluating IntelliJ (13.0.2 133.696) and cannot get jUnit tests to run from within the IDE.
My project is a multi module gradle project and uses scala.
Test class is located under src/test/scala/xxx/xxxxx/xxx/xxxx/xxxxx and everytime i try to run from IDE i get the same error:
Class not found: "xxx.xxxxx.xxx.xxxx.xxxxx.AccountRepositoryTest"
Test class is nothing fancy, simple jUnit test:
#RunWith(classOf[SpringJUnit4ClassRunner])
#ContextConfiguration(classes = Array(classOf[DataConfig], classOf[SettingsConfig]))
class AccountRepositoryTest extends AssertionsForJUnit {
I've found a related question Cannot run Junit tests from IDEA 13.0 IDE for imported gradle projects , but the provided fix (upgrade to 13.0.2) does not work.
I've even tried upgrading to the latest EAP, still the same issue.
I looked through some of these answers, fussed with Project Settings, tried a few things, etc. and nothing worked. (Full disclosure: I'm not trying to juggle Gradle here; I'm just using Maven, but I don't see what this has to do with Gradle.)
I'm using IDEA 14.
What I found to work, because it just simply seemed IntelliJ had lost its way, was this:
$ rm -rf .idea project-name.iml
Then relaunched IntelliJ and did File -> Open -> navigate to the root of my project, etc.--in short, just recreated my project.
IntelliJ got over it. I may have messed something up originally in this project as I had done plenty of refactoring both package- and class names and I had even changed the project name. (It was probably my fault it happened.)
I had this same problem, and in my case the problem was due to the "Project compiler output" path being left blank in Project Settings.
To fix it I created a classes directory in my project root, and set Project compiler output to the absolute path (use the … button to browse).
Go to Project Settings -> Project.
Fill in Project compiler output:
ex. D:\repo\Project\out
Go to Module -> Paths
Make sure that:
output path is like D:\repo\Project\out\production
test output path like D:\repo\Project\out\test
Should work!
Simply 'Build > Rebuild Project' worked for me.
Check Run/Debug configuration for that test
"Use classpath and SDK of module:" should point into your module.
In meantime you module must have a Scala facet and that class must be inside the
"Test source Folders".
You can try to invalidate the cache and restart. That usually will resolve issues when you add new dependencies / classes.
Make sure your test class package and the class for which you are writing test case are not same. If both test case and the class is having the same package, the compiler will look in the src folder and ignores the test folder.
I had the same problem. I changed a path in Module Settings -> Modules -> Paths -> Test output path to my directory for test classes bytecode (exclude output paths on). Now everything works!
IDEA restart solved the issue for me.
Just make shure the folder of your test file marked as a test folder in Intellij IDEA. That worked for me.
If you have multiple directories with source files with the same name, add package to your class source file, if not present!
I had the same problem, Intellij wasn't finding the Test output path. Running the regular application had no problems however.
For me, the fix was changing from inherited project compile paths, to using module compile output paths.
Project Settings -> Modules -> (Your module) -> Paths (tab)
Change the radio select button to "Use module compile output path". For me the autofilled suggestion worked, you may need to manually put in the correct Test Output Path if the autosuggestion doesn't work. Remember to apply the settings change.
As of for gradle project X, deleting both:
X/build
X/out
and running tests again helped me resolve this issue.
Try this in this order:
rebuild project (+strangely, select another app, reselect idea for context-switch, seems to force files reload ?!)
invalidate cache/restart idea
reimport project /create a new project
Just renaming the file to something different and back worked for me :)
modify the content in tag of the module's .iml file just as the following. It works for me.
<content url="file://$MODULE_DIR$">
<sourceFolder url="file://$MODULE_DIR$/src/main/java" isTestSource="false" />
<sourceFolder url="file://$MODULE_DIR$/src/test/java" isTestSource="true" />
<excludeFolder url="file://$MODULE_DIR$/target" />
</content>
Had the same problem, fixed it by recreating the project in a directory path that had no spaces, colons, periods or other special characters anywhere in the full path. Apparently IntelliJ can be finicky about the project path.
My issue remained after building, clean and rebuild, closing and opening the project (using intellij), project compiler output was correct; in the end I just deleted the folder out from my project directory. Note that my issue was only on the newly added Junit calling a newly added method. The rest of Junits were working fine.
For me it was that one test was failing and the error was misguiding.
So:
I re-imported module in intellij as standalone project
Run the test
Fix test issues
Run modules again and it started to work.
tl;dr:
Missing file extensions can cause this error.
details:
In my case the test classes were missing the .java extension. E.g. a
file named UserTest instead of UserTest.java
Was hard to find, everything looked normal from within the IDE
(apparently IntelliJ rather uses the file contents to display a
corresponding symbol).
Was not an issue as long as I used mvn from command line (with the surfire plugin enabled in pom.xml) or a dedicated maven launcher configuration, but caused
the initial error message when launching using IntelliJs test or coverage menu / buttons.
Everything working as expected as once I added the missing file endings.
The root cause might be hidden in Java Compiler settings, it was so for me at least. In particular, feel free to adjust those settings using some hints from another thread.

Groovy Eclipse can't launch junit tests

In Eclipse with groovy plugin, I try to launch a test #Test public void testToLaunch() {...} but I have the error:
The input type of the launch configuration does not exist
What input type is in the context of launch configuration? (can't find such an entry in launch configuration window)
Note: I try sts 2.8.1 and e3.7
This happens normally when the folder in which test case is present is not a source folder, please check this post as well.
Hope that helps!
This can also happen if there is a problem with the groovy class. A few things to check:
1) Ensure that the class name exactly matches the filename (filename = MyTest.groovy)
package com.mypackage;
import groovy.util.GroovyTestCase;
class MyTest extends GroovyTestCase {}
2) Ensure that the package defined in the file matches the package the file is actually in.
In Eclipse you can do
Right click -> properties -> Java build path
Notice test folder is not available in sources. Add it.
Add folder -> Select test -> OK
Now rerun you unit test cases.
This happened to me, and I just restarted Eclipse (GGTS) and everything was fine again.
I had a spelling mistake which lead to that error message. My test class file name was named JUnit5Test.java (with upper U) and the class itself was named Junit5Test (with lower u).
I was using Spring Tool Suite 4 (4.8.0.RELEASE).
This also happened to me. But these tests are written in Groovy. The problem I encountered has to do with how the IDE (Eclipse Kepler, Java EE) first opens a Groovy project after executing "mvn eclipse:eclipse".
The Build Paths do not reference the Groovy source files correctly.
To resolve, I:
Right-click on the project, select "Build Path" > "Configure Build Path..."
Select "Source" tab
For test and src folders (.../src/main/groovy, and .../src/test/groovy)
make sure "**/*.groovy" is set as "Inclusion patterns", not "**/*.java"
Hope this saves time for someone.
Cheers!
I had the same error message when I head the test-class duplicated both in the main Java source folder and the testsrc folder. Removing the incorrectly placed one in the main Java source folder solved the problem for me.
2019 Update: This drove me crazy for days even with latest Eclipse and fresh installs (Mac, Grails 4, Gradle 5.1.1, Java 8). Some above examples led me to the solution.
My problem was more that the code I was testing included a mix of groovy and java src/main code. It gave me NoClassDefFound on the .groovy classes when I ran my Spec as JUnit.
Solution: I had to modify my Run/Debug Configuration to include build/classes/groovy/main. Then it worked. It's a little bit of a pain to remember to that for every new Configuration, but, it keeps me going. I hope it helps you.
Whenever you create a Junit test in eclipse, make sure your Junit test file is inside src/test/java folder.
I had a similar problem. Like others have already pointed out, it was about source folders. I had to change my source folder setup. There was an empty src-folder that disappeared after I right-clicked on it and selected 'remove from build path' from Build path menu. After that I right-clicked both java/src and java/test folders and chose Build path > Use as a source folder. And suddenly my tests were JUnited!
In similar situations I'd advice to remove all source folders from build path and add them again when you're sure you've got the right ones. Your source folders should be those with Java package structure under them. In case of proj/java/test/com/stackoverflow/main it's the 'test' folder.
This is what resolved for me (Eclipse Oxygen). I had already done what Robert suggested in the earlier post. I was still getting the error. When I went to edit the configuration for junit launch, I saw that the Test Class field just had the class name. I had to hit the Search button to the right. The Test Class field now had the complete name for the class
com.mycompany.mypackage.MyClass
With this I am able to run the JUnit. But I have to keep fixing this for every run.
Found another way to cause this message. The cause turned out to be an empty copy of MyTest.java under src/main/java, as well as the real one under src/test/java.
Think the empty file was a hangover from some refactoring and was oddly causing no compile errors either. Deleting it enabled the test to run again.

Location of config file for devmode in Eclipse?

I have a multi module GWT project (say a.gwt.xml, b.gwt.xml, c.gwt.xml) that I am building in eclipse and testing in devmode. All was working well until I deleted one of the gwt module file and associated source. Now when I try to launch devmode from eclipse it fails with the following error message.
Loading modules
com.fubar.b
[ERROR] Unable to find 'com/fubar/b.gwt.xml' on your classpath; could be a typo, or maybe you forgot to include a classpath entry for source?
[ERROR] shell failed in doStartup method
I assume that this means there is a stale reference to the now defunct b.gwt.xml but I can't seem to find it in any of the config files. Any ideas?
At present I am working around this by doing a copy+rename a.gwt.xml -> b.gwt.xml (so there are effectively 2 copies of the a module names a + b) which works fine but compiles 2 copies of same module :(
What I think is your runtime configuration which is gone wrong. Individual projects should be fine. Open the runtime configuration which you were running and check the entries in GWT! If the module you have deleted still exists here, then you need to remove it.
Runtime config for project
You can refer to the following Video.
http://www.youtube.com/watch?v=UW4WSYs1bKE
To rename
Right Click on the project.
Select Run As ---> Run Configurations.
In the Arguments Tab, change the Old Module Names in Program
Arguments.
Also Make sure, in GWT Tab, Selected module name is correct.
ALREADY I HAVE ANSWERED THIS HERE : GWT:how can i rename my module

Common targets are not recognized by Eclipse

I have added all common targets like (init, clean, getivy, etc) in ./common/common.xml and added:
<import file="${basedir}/common/common.xml"/>
in build.xml.
When I build the project, its working fine. But, When I open build.xml in Eclipse IDE, I see some "Red" marks underneath targets which have a dependency targets that are defined in common.xml. And when I do mouse over those Red marked targets, I see a message saying that:
Target init does not exist in this project.
To clarify, the common folder is added through svn:externals. Does this need extra configurations in Eclipse?
I have Eclipse Indigo Service Release 1 Build id: 20110916-0149 with ant 1.8.2 and the described problem with import seems to be fixed as Steve already mentioned. But the problem still exists for include and no answer seems to solve it for me. I searched the bugtracker shortly but don't have the time to be sure and test in the latest eclipse version and post a bug in the bugtracker.
Edit:
I had the problem with import again after refactoring the folder structure in the project and moving the buildfile. Although I started "Validate" on the project, the validation cached the old location and did'nt realize the move. I had to close the editor and the warning disappeared.
If your build.xml, and the common directory are at the same directory level then just try
<import file="common/common.xml" />
This works for me fine.
Use the include path ${basedir}/common/common.xml because . is probably the directory in which Eclipse is installed.
I found a post online here where someone found a workaround. You just need to make the file import not the first line in the ant build file. If you put it after a property declaration for instance the error goes away. This worked fine for me and eclipse is happy now.
The specific problem we had seemed to be because we
were importing common build.xml files into our project-specific build files, but the import was having problems when it is the first line in our
project-specific build file.
However, if I put a property task before the import, it seems to work fine. I am guessing this much force some initialization that wasn't occurring with only the <import>. I have no idea why this same issue doesn't happen in either command line with Ant 1.8, or with Eclipse using Ant 1.7.