I am using Struts 2 to create a web application. I am using StrutsTestCase for Junit test case to test the Action class. I have imported struts2-junit-plugin-2.3.4.jar as I am using struts2-core-2.3.4.jar. Inside the testcase method, when i tried to set the request parameters, request variable is not available for use. it is showing compilation error. I am getting 'request cannot be resolve' error. In my test class i am extending StrutsTestCase which has request as protected parameter. But it is not available inside extended method.
My test action looks like this:
import org.apache.struts2.StrutsTestCase;
public class WallPlanningActionTest extends StrutsTestCase {
public void testList() {
request.setParameter("salesOrg",1);
}
You can only get compilation errors if StrutsTestCase which your class is extended is not org.apache.struts2.StrutsTestCase. You could optimize the imports or just use FQCN.
public class WallPlanningActionTest extends org.apache.struts2.StrutsTestCase {
For future readers:
I had the same problem - the protected request field was not accessible. The problem was that i hadn't add the spring libraries. StrutsTestCase uses spring-core-x.y.z and spring-test-x.y.z. It is depended on them an i couldn't find a way to use the unit tests without them.
Other dependencies could be found by opening the struts-junit-plugin jar (as archive). Open the META-INF folder and in there you will find DEPENDENCIES file with a list of all dependencies.
Hope this helps someone.
Related
I have written an annotation processor that generates a builder class for my classes annotated with #DataBuilder
#Target(AnnotationTarget.CLASS)
#Retention(AnnotationRetention.SOURCE)
annotation class DataBuilder
My classes annotated with this annotation are located in the com.my.package.model package and the generated builder class is also located in the same package com.my.package.model but in the generated directory of course build/generated/source/kapt/debug/com/my/package/model/MyModelBuilder.kt, I can use these generated classes fine inside of my model classes(written in Kotlin)
BUT I can NOT use the generated MyModelBuilder Kotlin class inside of a java class as a class member
package com.my.package.home;
import com.my.package.model.MyModelBuilder;
public class Home {
MyModelBuilder builder; // <=== AS recognizes the class, but I'm having an compilation issue
}
Android Studio recognizes the class, but I’m having this compilation issue
com/my/package/home/Home.java:4: error: cannot find symbol
MyModelBuilder builder;
^
symbol: class MyModelBuilder
location: class Home
it’s weird because I can use this generated builder class only inside of methods, this code compiles fine:
package com.my.package.home;
import com.my.package.model.MyModelBuilder;
public class Home {
public void hello() {
MyModelBuilder builder;
}
}
could somebody here help me to understand this behavior and how to fix this? In advance, thanks!
UPDATE
I just created this repo with the necessary code to replicate the issue
https://github.com/epool/HelloKapt
The project works fine after cloning and running, to replicate the issue please un-comment this line https://github.com/epool/HelloKapt/blob/master/app/src/main/java/com/nearsoft/hellokapt/app/MainActivity.java#L13
Note: If I convert my MainActivity.java class to Kotlin(MainActivity.kt) the issues is NOT reproducible and works fine, but I don’t want to do so due to some project limitations so far
Kotlin Issue: https://youtrack.jetbrains.net/issue/KT-24591
Looking at your Github project, I notice that you don't declare a dependency on kotlin-stdlib-jdk7 in the app module. When I build the module, compiler emits the following warnings:
warning: unknown enum constant AnnotationTarget.CLASS
reason: class file for kotlin.annotation.AnnotationTarget not found
warning: unknown enum constant AnnotationRetention.SOURCE
reason: class file for kotlin.annotation.AnnotationRetention not found
warning: unknown enum constant AnnotationTarget.CLASS
reason: class file for kotlin.annotation.AnnotationTarget not found
Since kotlin-stdlib-jdk7 is declared as implementation in the annotations module, the app module doesn't see it as a transitive dependency, that might be the reason why compilation fails. To fix it, you should probably declare the correct dependency in the app module, or at least use apiElements scope for kotlin-stdlib-jdk7 in annotations.
The fact that the IDE doesn't notify you that compilation failed might be a tools bug, but there's definitely no underlying Kotlin compiler issue.
I am referencing PlayerUtil.getMovementSpeed(player); in my Speed class, and in my PlayerUtil class, I have the method defined as:
public static double getMovementSpeed(Player player) {
//my code here
}
But whenever the getMovementSpeed method is referenced in my other classes, it throws this error:
java.lang.NoSuchMethodError: net.Swedz.util.PlayerUtil.getMovementSpeed(Lorg/bukkit/entity/Player;)D
I thought it may be that Eclipse was exporting incorrectly, but I rebooted it and tried again with no avail.
EDIT: I did try decompiling the exported jar, and the public static double getMovementSpeed(Player player) method does exist in the exported jar.
EDIT: My friend is also having a similar issue, and is using IntelliJ, so Eclipse is not the issue.
EDIT: Class definition for PlayerUtil:
package net.Swedz.util;
public class PlayerUtil implements Listener {
//getMovementSpeed is defined in here
}
Class definition for Speed:
package net.Swedz.hack.detect.move;
public class Speed implements Hack, Listener {
//my detection methods and method containing PlayerUtil.getMovementSpeed(player);
}
SOLUTION: I found on my own that I had classes conflicting between two plugins on my server. I had one jar with net.Swedz.util.PlayerUtil and another with net.Swedz.util.PlayerUtil both with different contents. I added my project name in all lower case after the net.Swedz and it seems to have fixed it!
Thanks!
This is a very simple to troubleshoot.
you have used that method and you were able to compile that class which uses this method.
so that means at compile time it reefers the class PlayerUtil which has this method.
But runtime class loader has loaded the class PlayerUtil which doesn't contain this method.
now what you have to do is just find out where that class has been loaded from (at run time)
if you can recreate the problem while it is running using eclipse/IDEA follow these steps.
(if it runs in in application server or standalone application, then start the application server or application with debug enabled.and you can do remote debug from your IDE).
put a break-point where exception was thrown (where you call this method).
start to debug , it will hit the break-point.
then evaluate this expression PlayerUtil.class.getResource("PlayerUtil.class")
4.you can find the path where the class was loaded from.
now you have two options , decompile the class and check whether that method is these (same return type, same name , same args).
or in debug , you can evaluate PlayerUtil.class.getDeclaredMethods() to find out.
So you can solve the problem by rectifying the class path entries if it was loaded from a wrong place.
I have util class with one method:
public static void setStyleForWidgetLayout(HTMLPanel panel, int rowQuantity) {
Which for each Widget in HTMLPannel assign widgth depends on number of widgets and rows.
It is very simple switch.
I want to test this method but when i create test with normal JUnit test case i recieve error on creating HTMLPanel.
Caused by: java.lang.UnsupportedOperationException: ERROR: GWT.create() is only usable in client code! It cannot be called, for example, from server code. If you are running a unit test, check that your test case extends GWTTestCase and that GWT.create() is not called from within an initializer or constructor.
Next I tried to extend GWTTestCase but it requires to implement getModuleName() but i dont have any particular module because the class I test is just util class
Ok, I thought, lets mock it. I used mockito, but the errror occured, same as from previous code section.
Than I found class GwtTestWithMockito and tried to run this and again I recieved error.
com.googlecode.gwt.test.exceptions.GwtTestConfigurationException: No declared module. Did you forget to add your own META-INF/gwt-test-utils.properties file with a 'gwt-module' property in the test classpath?
I added #GWTModule and this META-INF/gwt-test-util.properties. And experimented with different configurations. I tried existing module names and not existing ones but still i recieve error above.
Thanks in advance
I'm afraid you have to use GWTTestCase. Your module name is the name of your module XML file.
Sometimes you have to add your Panel to the root panel, I generally do this just to be on the safe side.
I have a weird problem. I created a test class by extending StrutsTestCase.
public class MyActionTest extends StrutsTestCase{
public void helloTest()
{
}
}
The struts documentation says request of MockHttpServletRequest will be available by extending StrutsTestCase. Fair enough, it's a protected variable in StrutsTestCase so we should have access to it once we extend the class.
But for some reason, NO protected attribute or method of StrutsTestCase is visible in my MyActionTest.
I don't know if I am missing something, but everything seems straight forward, but yet doesn't work.
Any idea as to why the protected methods of super class are not accessible in subclass ? Should I use some specific package or something ?
List of jars I use for this task :
spring-2.5.3.jar
spring-mock-1.2.6.jar
struts2-core-2.0.11.jar
xwork-core-2.3.1.jar
Am I missing something ?
Perhaps struts2-junit-plugin http://struts.apache.org/2.x/docs/junit-plugin.html or struts2-testng-plugin http://struts.apache.org/2.x/docs/testng-plugin.html
StrutsTestCase is part of the struts2-junit-plugin. See http://struts.apache.org/2.2.3/struts2-plugins/struts2-junit-plugin/apidocs/org/apache/struts2/StrutsTestCase.html - you'll find the protected request variable there.
Just add that plugin to your classpath and you should be able to use it. Also, don't forget to use the same versions for your struts-core and the plugin.
I'm working in Java and have come across an incredibly odd error. I have a very basic class as follows:
public class ClassA{
private static Logger log = Logger.getLogger(ClassA.class.getName());
private boolean trace;
public ClassA(){
trace = log.isTraceEnabled();
}
public void doSomething(){
//does stuff
}
}
I can use this class just fine within my current project. However, when I build, package, and install to my local repo (using Maven, no remote artifact repo set up), other projects cannot properly use this class because they cannot instantiate it. When I try anything like:
ClassA classA = new ClassA();
I get the following compilation error:
ClassA() has private access in [package].ClassA
I've decompiled the .jar in my local repo to ensure the constructor is present and is public - it is. I've also used the -U flag to force updates and the compilation continues to fail. What could be causing this error?
Maybe you have some other ClassA.class file somewhere in the classpath. Check all the jars used by the project that cannot call the constructor: one of them should contain an old version of your class.
My only thought is that you have a problem with your package. Make sure to define the package at the top of the source file for classA using the package keyword. When you call it ensure that the file is in include list with the include keyword. You could be running into the error because ClassA exists in some default package and that is what you are actually calling instead of calling your locally made ClassA class. The code you posted looks fine and you have already double checked to ensure the changes have taken effect in your repository.
//for those with Kotlin-Java mixed projects:
If the said file (With constructor) is in Kotlin and is being used in Java:
Instead of A a = new A(); //which causes the said error
Use A.INSTANCE. …
I have this error, where write "private", instead "public" for class constructor;