Error while trying out JUnit - java

I have done more than an hour of searching while trying to run JUnit on my project. I can see that there is a class missing - LogEntryFormatter. But no matter how hard I tried, I am not able to find the jar file which contains this one. Eclipse shows the below stack trace after running the Test case file.
java.lang.NoClassDefFoundError: weblogic/logging/LogEntryFormatter
at java.lang.ClassLoader.findBootstrapClass(Native Method)
at java.lang.ClassLoader.findBootstrapClass0(ClassLoader.java:892)
at java.lang.ClassLoader.loadClass(ClassLoader.java:302)
at java.lang.ClassLoader.loadClass(ClassLoader.java:300)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
at weblogic.logging.commons.LogImpl.(LogImpl.java:14)
at weblogic.logging.commons.LogFactoryImpl.getInstance(LogFactoryImpl.java:21)
at weblogic.logging.commons.LogFactoryImpl.getInstance(LogFactoryImpl.java:18)
at org.apache.commons.logging.LogFactory.getLog(LogFactory.java:685)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.(SpringJUnit4ClassRunner.java:91)
...
When I use #RunWith(SpringJUnit4ClassRunner.class) and if I use #RunWith(JUnit4.class), a sample test seems to work.
Any sort of help will be useful. I am using WebLogic server, and all weblogic related jars are available on the classpath.

Ok, so after a lot of effort I am able to run JUnit Tests, although not in the exact way I want. I am also at a loss to explain why this is happening or where weblogic.logging is configured. This could be a possible problem with my project setup. After adding the following jar files to the classpath (after removing everything except jdk), it seems to be working for me.
wlclient
com.bea.core.utils.classloaders
com.bea.core.descriptor
com.bea.core.utils
com.bea.core.management.core
junit 4.5
Thanks to all those who helped by providing valuable comments. The stack traces encountered at each step helped me point in the right direction.

Related

Gradle unable to run JUnit tests with useJUnitPlatform()

My project is a Gradle dependent JavaFX project using Java JDK 11. The project was made using the default structure of a Gradle project. So under src it has "main" and "test", each consisting of a "java" and a "resource" directory.
For setting up a CI pipeline with Jenkins it is a requirement that gradlew test runs all tests in the same way my IDE (IntelliJ) so far has. The funny thing is, I have not been able to get this to work after hours of trying.
In the IntelliJ run configuration it tests "all in package", within the .test package, and this works just fine (click for screenshot) Below are all the relevant parts of the build.gradle file, please note that I have left out all unrelated parts for simplicity.
dependencies {
testImplementation 'org.junit.jupiter:junit-jupiter-api:5.1.0'
testRuntimeOnly 'org.junit.jupiter:junit-jupiter-engine:5.1.0'
}
test {
useJUnitPlatform()
}
application {
mainClassName = 'FP.EDM.main/edm.Main'
}
Whenever I run the gradlew test command I get the following two errors:
java.lang.RuntimeException: Unable to parse --add-opens <module>/<package>: FP.EDM.main/
Could not write standard input to Gradle Test Executor 1.
java.io.IOException: The pipe is being closed
at java.base/java.io.FileOutputStream.writeBytes(Native Method)
at java.base/java.io.FileOutputStream.write(FileOutputStream.java:354)
at java.base/java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:81)
at java.base/java.io.BufferedOutputStream.flush(BufferedOutputStream.java:142)
at org.gradle.process.internal.streams.ExecOutputHandleRunner.forwardContent(ExecOutputHandleRunner.java:67)
at org.gradle.process.internal.streams.ExecOutputHandleRunner.run(ExecOutputHandleRunner.java:52)
at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:63)
at org.gradle.internal.concurrent.ManagedExecutorImpl$1.run(ManagedExecutorImpl.java:46)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
at org.gradle.internal.concurrent.ThreadFactoryImpl$ManagedThreadRunnable.run(ThreadFactoryImpl.java:55)
at java.base/java.lang.Thread.run(Thread.java:834)
Another approach I have tried is to use the useJUnit() command instead of useJUnitPlatform(). At first sight this seems to work perfectly fine however when I use this no tests are found at all. My assumption is that the default module for tests is not set correctly. However I have found no way to set this or no mention of this anywhere online. Please let me know what your thoughts are :)
PS. I would much rather not downgrade to JUnit 4.x since that would require me to rewrite all these (working) tests.
Alright I solved the issue, I'm not quite sure what exactly caused it but it had something to do with the module-info for both the main and test modules. I decided to remove both for the time being and it runs like it should.
Edit:
After days of looking around I got it figured out at last. Adding a module-info.java encapsulates a module and it's dependencies. Because this project applies the gradle-modules-plugin I wouldn't recommend using the same plugin again as it could cause issues though I have not experimented with this myself.
What is the way to go then? Well there are two options:
-Ignore the module-info.java > this can be done in the build.gradle file, for an example of that solution have a look at this
-Specify a module-info.test > this is a way to apply certain dependencies, mine looks like the following:
--add-modules
org.junit.jupiter.api
--add-reads
FP.EDM.main=org.junit.jupiter.api
Please do keep in mind: this file format should go in the root of your source, all my test files were in a different directory in the root, as I didn't get it to work in the root (though that could just be me).
For further reading there is this Git issue which helped me solve it in the first place or this excellent blog by Sormuras which explains a lot

Adding spock to eclipse without maven: General error during semantic analysis

I am trying to do my first test-automation with Spock.
I do not want to use maven.
I am using eclipse java EE oxygen 4.7.
I have created a groovy project.
I have added the Spock jar as an external library in the build path configuration.
Spock ist Spock-core-1.1-groovy-2.4.
I have also added geb jar the same way.
However, I am getting this strange error from the automatic build, which I do not understand and I am seeking for help. So far I haven't found anything helpfull.
General error during semantic analysis: Transform org.spockframework.compiler.SpockTransform#xxxx cannot be run org.codehaus.groovy.GroovyException:
Transform org.spockframework.compiler.SpockTransform#xxxx cannot be run at
org.codehaus.groovy.transform.ASTTransformationVisitor$3.call(ASTTransformationVisitor.java:416) at
org.codehaus.groovy.control.CompilationUnit.applyToSourceUnits(CompilationUnit.java:972) at
org.codehaus.groovy.control.CompilationUnit.doPhaseOperation(CompilationUnit.java:633) at
org.codehaus.groovy.control.CompilationUnit.processPhaseOperations(CompilationUnit.java:609) at
org.codehaus.groovy.control.CompilationUnit.compile(CompilationUnit.java:586) at
org.codehaus.jdt.groovy.internal.compiler.ast.GroovyCompilationUnitDeclaration.processToPhase(GroovyCompilationUnitDeclaration.java:217) at
org.codehaus.jdt.groovy.internal.compiler.ast.GroovyCompilationUnitDeclaration.resolve(GroovyCompilationUnitDeclaration.java:613) at
org.eclipse.jdt.internal.compiler.Compiler.process(Compiler.java:879) at org.eclipse.jdt.internal.compiler.ProcessTaskManager.run(ProcessTaskManager.java:141) at
java.lang.Thread.run(Unknown Source) Caused by: java.lang.NoClassDefFoundError: Unable to load class org.spockframework.runtime.ErrorCollector due to
missing dependency org/junit/runners/model/MultipleFailureException at org.codehaus.groovy.vmplugin.v5.Java5.configureClassNode(Java5.java:397) at
org.codehaus.groovy.ast.ClassNode.lazyClassInit(ClassNode.java:353) at org.codehaus.groovy.ast.ClassNode.getDeclaredMethods(ClassNode.java:981) at
org.codehaus.groovy.ast.ImmutableClassNode.getDeclaredMethods(ImmutableClassNode.java:105) at
org.spockframework.compiler.AstNodeCache.(AstNodeCache.java:65) at org.spockframework.compiler.SpockTransform$Impl.(SpockTransform.java:
52) at org.spockframework.compiler.SpockTransform.visit(SpockTransform.java:47) at
org.codehaus.groovy.transform.ASTTransformationVisitor$3.call(ASTTransformationVisitor.java:395) ... 9 more
My code is as simple as you can get. This is the code:
//The error is on the "p" letter of package
package hellowworld
class HelloWorld{
static main(args) {
}
}
Please note that this error only happens when I add Spock jar. The closest question was Spock without maven or gradle, but obviously the problems are different.
I just cut the file from the package directory pasted it out side and then recut pasted in the package back. It worked well and I have no idea why.
This is one of those problems which occasionally arise in Eclipse and most people just won't know why!
The thing to do usually is to try several "strategies" and hope that one will work. If not you have to come back to SO and try to enlist the support of an expert.
One tip: in my experience sometimes it is worth trying "Refresh Gradle" and "Build all" more than once. Not only that, but sometimes trying either of these actually then seems to do nothing... but a couple of seconds later the horrid x in the red box then vanishes like morning mist!
Highlight/select the project in Project Explorer --> right-click --> Gradle --> Refresh Gradle Project
Put cursor in a code file open in the editor, press Ctrl-B (Project --> Build all)
Close all files in editor, close Eclipse and start up Eclipse again
Try the above in various combinations
Reboot and then try the above in various combinations
If this fails to cure it you may need to turn to SO.

Nutch Crawler Error: Hadoop Path Permissions

I'm trying to run Apache Nutch (v2.3) with MongoDB (v2.6). I am following this tutorial to help me get things set up. I have already created my seed list and my gora.properties and nutch-site.xml are set up fine. However, when running the bin/nutch inject ../urls/test/ command, I keep getting a java.io.IOException error :
$ bin/nutch inject ./../../urls/test/
InjectorJob: starting at 2015-05-04 13:53:29
InjectorJob: Injecting urlDir: ../../urls/test
InjectorJob: Using class org.apache.gora.mongodb.store.MongoStore as the Gora storage class.
InjectorJob: java.io.IOException: Failed to set permissions of path: \tmp\hadoop-TColletti\mapred\staging\TColletti1801159571\.staging to 0700
at org.apache.hadoop.fs.FileUtil.checkReturnValue(FileUtil.java:691)
at org.apache.hadoop.fs.FileUtil.setPermission(FileUtil.java:664)
at org.apache.hadoop.fs.RawLocalFileSystem.setPermission(RawLocalFileSystem.java:514)
at org.apache.hadoop.fs.RawLocalFileSystem.mkdirs(RawLocalFileSystem.java:349)
at org.apache.hadoop.fs.FilterFileSystem.mkdirs(FilterFileSystem.java:193)
at org.apache.hadoop.mapreduce.JobSubmissionFiles.getStagingDir(JobSubmissionFiles.java:126)
at org.apache.hadoop.mapred.JobClient$2.run(JobClient.java:942)
at org.apache.hadoop.mapred.JobClient$2.run(JobClient.java:936)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Unknown Source)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1190)
at org.apache.hadoop.mapred.JobClient.submitJobInternal(JobClient.java:936)
at org.apache.hadoop.mapreduce.Job.submit(Job.java:550)
at org.apache.hadoop.mapreduce.Job.waitForCompletion(Job.java:580)
at org.apache.nutch.util.NutchJob.waitForCompletion(NutchJob.java:50)
at org.apache.nutch.crawl.InjectorJob.run(InjectorJob.java:231)
at org.apache.nutch.crawl.InjectorJob.inject(InjectorJob.java:252)
at org.apache.nutch.crawl.InjectorJob.run(InjectorJob.java:275)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
at org.apache.nutch.crawl.InjectorJob.main(InjectorJob.java:284)
I've read in some places this could be caused by not having the correct version of MongoDb or the Gora is wrong. It seems as though something is wrong with the permissions to a temp directory for hadoop(which im not using right now). I've looked at this S/O article but cannot find the core-site.xml file anywhere in my 2.3 version of Nutch.
Can someone help me finally run this command?
I'm not sure if this is the official answer or not, but it worked for me. I found another S/O post here. The general problem was the same. Other places kept mentioning about modifying core-site.xml which I did not have. However in one of the answers it mentions a patch to download and couple lines you need to add to the nutch-site.xml file in my runtime/local/conf directory. Tried it out and it solved my problems. It seems like the patch just ignored the errors and went around them. There may be a better solution to this but for now, it worked.

Intellij run/debug target not finding classes within its own module

The first screenshot shows a working run configuration. The second shows a non working one. They are identical module/classpath wise - at least according to the visible info.
Clearly there's a bug in IJ for this. So .. how have others of you out there discovered a workaround for this? Also, ideas on what triggers this behavior?
WORKING run configuration
NOT Working run configuration - gives ClassNotFoundException for org.apache.hadoop.fs.PathFilter
Caused by: java.lang.ClassNotFoundException: org.apache.hadoop.fs.PathFilter
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
Here is the UDFPafDqm module - which DOES include hadoop jar from Hortonworks - so the ClassNotFoundException is bogus
The process above was repeatable : if you copy a run configuration it does not necessarily work - and can fail as described. You have to start from scratch. This is an IJ bug.

Hibernate in Servlet causesNoClassDefFoundError: org/slf4j/LoggerFactory

I have a Java (6) application which uses Hibernate (V3.3.2) to read data from HSQLDB, which i build and debug/run with Eclipse (V3.5.1), and it works fine.
I then created a GWT (V1.7) Servlet web app, copied my hibernate classes into it, and added the same User Libraries dependencies. However when i run the servlet and try to access a URL which invokes my code i get this:
java.lang.NoClassDefFoundError: org/slf4j/LoggerFactory
at org.hibernate.cfg.Configuration.<clinit>(Configuration.java:152)
at xxx.daoimpl.DAOSession.initialise(DAOSession.java:40)
where DAOSession.java:40 is :
AnnotationConfiguration config = new AnnotationConfiguration ();
Googling for this error suggests i am missing slf4j-api.jar from the classpath, however if i look at the command line for the Debug properties i can see this jar there:
C:\java\jsedk_6\jre\bin\javaw.exe
-agentlib:jdwp=transport=dt_socket,suspend=y,address=localhost:54541
-Xmx512m -Dfile.encoding=Cp1252
-classpath
D:\dev\workspace\xxx\src;
D:\dev\workspace\xxx\resources;
D:\dev\workspace\xxx\war\WEB-INF\classes;
C:\java\eclipse\plugins\com.google.gwt.eclipse.sdkbundle.win32_1.7.1.v200909221731\gwt-windows-1.7.1\gwt-user.jar;
C:\java\eclipse\plugins\com.google.gwt.eclipse.sdkbundle.win32_1.7.1.v200909221731\gwt-windows-1.7.1\gwt-dev-windows.jar;
C:\java\hibernate-annotations-3.4.0.GA\hibernate-annotations.jar;
C:\java\hibernate-annotations-3.4.0.GA\lib\ejb3-persistence.jar;
C:\java\hibernate-annotations-3.4.0.GA\lib\hibernate-commons-annotations.jar;
C:\java\hibernate-distribution-3.3.2.GA\hibernate3.jar;
C:\java\hibernate-distribution-3.3.2.GA\lib\required\antlr-2.7.6.jar;
C:\java\hibernate-distribution-3.3.2.GA\lib\required\commons-collections-3.1.jar;
C:\java\hibernate-distribution-3.3.2.GA\lib\required\dom4j-1.6.1.jar;
C:\java\hibernate-distribution-3.3.2.GA\lib\required\javassist-3.9.0.GA.jar;
C:\java\hibernate-distribution-3.3.2.GA\lib\required\jta-1.1.jar;
C:\java\hibernate-validator-4.0.1.GA\hibernate-validator-4.0.1.GA.jar;
C:\java\hibernate-validator-4.0.1.GA\lib\validation-api-1.0.0.GA.jar;
C:\java\hibernate-validator-4.0.1.GA\lib\log4j-1.2.14.jar;
C:\java\hsqldb\lib\hsqldb.jar;
C:\java\restlet-jse-2.0m5\lib\org.restlet.jar;
C:\java\restlet-jee-2.0m5\lib\org.restlet.ext.servlet.jar;
C:\java\restlet-jse-2.0m5\lib\org.restlet.ext.xml.jar;
C:\java\slf4j-1.5.8\slf4j-api-1.5.8.jar;
C:\java\slf4j-1.5.8\slf4j-log4j12-1.5.8.jar
com.google.gwt.dev.HostedMode
...
If i open the jar i can see the LoggerFactory class in there.
Any idea why it isn't being found by the class loader?
Edit 1: If try to access org.slf4j.LoggerFactory from my code, Eclipse compiles it ok, but i get the same error at runtime.
Edit 2: If i add a Test class with a main which calls the same code and run it, it works. So this classpath problem seems specific to the Servlet.
thanks,
jon
It seems that copying the two slf4j jars to the war/WEB-INF/lib sub-project/dir fixed the problem. I'm not really sure why i should need to do this for these two jars and not for all the other Hibernate, Restlet etc jars that the project also uses, though i suppose for consistency i will do that anyway - i guess it will make deployment easier as well.
If someone can provide some sort of explanation as to why this worked and why exactly i need to do it i will select it as the "correct" answer, otherwise i'll select this one.
Can you please reconfirm that you have at least two slf4j.jar files in the classpath, the slf4j-api.jar and exactly one implementation, such as slf4j-jdk14.jar?
You must not have multiple sflj4-implementations in the classpath.
You have a runtime dependency issue so everything compiles fine but the dependency is in your jars. You need to visit the Hibernate site and look at the compatibility matrix and make sure you are matched up correctly then check the dependencies for annotations and core. You log4J jars look fine so it's definitely some quirk.
If it works in Eclipse then logically it's definitely some diff between the 2 runtimes (eclipse and non-eclipse), if the matrix checks out fine then see if you can factor out the commonalities in the 2 then work out the differences -- your answer should be in there.
I had a similar issue except I was using Tomcat and the NoClassDefFound error was on the juli logger. I fixed it by removing the Tomcat dependencies from my classpath when running in hosted mode because hosted mode embeds a Tomcat server that was conflicting. So I would see what happens if you remove some or all of the restlet jars from your classpath to see if they conflict.

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