I am new to Code Coverage and EMMA tool.
I am trying to:
1. Write a simple java program "testClass1.java". Compile it, and a got a "testClass1.class" file.
2. I package this as a jar. "myJar.jar"
3. Instrument this jar using this emma command and got a coverage.em file
C:\Users\emahaboo\Desktop>java -cp emma-2.0.5312.jar emma instr -m overwrite -cp myJar.jar
EMMA: processing instrumentation path ...
EMMA: instrumentation path processed in 156 ms
EMMA: [1 class(es) instrumented, 0 resource(s) copied]
EMMA: metadata merged into [C:\Users\emahaboo\Desktop\coverage.em] {in 7 ms}he emma command.
Now I want to execute this "myJar.jar" file.
I am not sure, what should I do exactly here, because I get the below error:
C:\Users\emahaboo\Desktop>java -cp myJar.jar:emma-2.0.5312.jar myJar
Error: Could not find or load main class myJar
C:\Users\emahaboo\Desktop>java -cp myJar.jar:emma-2.0.5312.jar testClass1
Error: Could not find or load main class testClass1
Can someone help me to proceed. I want to successfully run this program and get the emma code coverage report.
On Windows, items on the classpath need to be separated with semicolons. I would put the whole parameter in quotes:
-cp "myJar.jar;emma-2.0.5312.jar"
If you want to execute a jar file, there must be a main class as the entrance. For the error "Error: Could not find or load main class...", it just means that it can't find the main class. I think the root cause for this is due to your second step: "I package this as a jar. "myJar.jar"". when you packaged it, you need to set the testClass1 as the main class for this jar file. Hope this helps.
Related
The path to my project is /project/
My build file structure is src/main/package/subpackage/Class.java
My test file structure is src/test/package/subpackage/Test.java
I would like my compiled code to be in bin/main/package/subpackage/Class.class
Compiled test code in bin/test/package/subpackage/Test.class
My pom.xml has the entry
<build>
<sourceDirectory>${project.basedir}/src/main</sourceDirectory>
<testSourceDirectory>${project.basedir}/src/test</testSourceDirectory>
<outputDirectory>${project.basedir}/bin/main</outputDirectory>
<testOutputDirectory>${project.basedir}/bin/test</testOutputDirectory>
<finalName>${project.artifactId}-${project.version}</finalName>
</build>
Running mvn clean install causes the following.
Failed to execute goal org.apache.maven.plugins:maven-resources-plugin:2.6:resources (default-resources) on project Hello-Maven: Error loading property file '/project/': /project (Is a directory) -> [Help 1]
...
[Help 1] https://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException
Now I've tried the link, but it suggest that it's an issue with the plugins.
However, commenting this block out, and running mvn clean install again returns an almost empty jar file inside /project/target/Hello-Maven-1.0-SNAPSHOT.jar, containing only the pom and the manifest. Additionally, there aren't any plugins, only dependencies: junit and javafx.
EDIT: I realize that plugins specifically for running maven but finding information over why the error happens for "install" is difficult at best.
My goal is to translate a Java Project (3 .java files) to .pas files with Embarcadero's Java2OP tool.
I'm using it via cmd, started in the java2op directory. After several unsuccessful tries, and a lot of time of googling, I am frustrated.
Commands in the documentation:
Input Options
-------------
-classes Space-separated list of names of classes or packages to export. -classes lets
you define a specific subset of the specified Java sources (-jar or -source options)
or the Android API.
-jar Space-separated list of input Java compiled libraries (.jar files).
-source Space-separated list of input folders containing Java source files (.java files).
Output Options
--------------
-unit File name of the output unit.
Default: Android.JNI.Interfaces
Examples
--------
Exporting some classes and packages from the Android API:
Java2OP.exe -classes android.net.ConnectivityManager android.location.*
Exporting all classes from mylib.jar:
Java2OP.exe -jar mylib.jar
Exporting a single class from mylib.jar:
Java2OP.exe -jar mylib.jar -classes com.mypackage.ClassName
Exporting all the classes from a folder of Java sources specifying the
file name of the output Delphi unit:
Java2OP.exe -source myproject/src -unit Android.JNI.UnitName
My commands:
java2op.exe -src A:\Tests -unit Android.JNI.TestFile
So it matches the guidelines:
Java2OP.exe -source myproject/src -unit Android.JNI.UnitName
If I try to change -src to the suggested -source, I get the following error:
Invalid option: -source
After executing the command, 1 error occurs:
Command: javadoc -J-Xmx1024m -encoding "UTF-8" -sourcepath "A:\java2op\Java"
-subpackages "" -classpath "" -bootclasspath "A:\java2op\bootclasses.jar" -docletpath "A:\java2op\doclava.jar"
-doclet com.google.doclava.Doclava -nodocs -public -apixml "A:\java2op\temp.xml"
Output: javadoc: error - Illegal package name: "" 1 error
I read the following post about the same issue:
How can I extract a Delphi class from this JAVA file for use with Android?
but without success.
What am I missing or doing wrong?
I am running into the following error when trying to run ant:
Problem: failed to create task or type runtarget
I am building on a mac 10.8.3.
Prior research has suggested that I add ant-contrib-0.3.jar to my ANT_HOME installation directory, which I have done (that had actually gotten rid of another 'failed to create task or type' error)
I used ant-contrib-0.3.jar because research suggested that this jar is mapped to the line:
< taskdef resource="net/sf/antcontrib/antcontrib.properties" />
which is in the build.xml file I am using.
The project builds on windows machines ( I even got it to build using https://code.google.com/p/winant/ ) but am trying to get it built on a mac. I am thus not looking to change the build.xml file.
An example of the run target line is:
<target name="setPASProps" depends="" description="setup the properties">
<property name="systemname" value="PAS"/>
<runtarget target="setSystemProps"/>
</target>
Here is some info from running ant -diagnostics
-------------------------------------------
ANT PROPERTIES
-------------------------------------------
ant.version: Apache Ant(TM) version 1.8.2 compiled on June 20 2012
ant.java.version: 1.7
Is this the Apache Harmony VM? no
Is this the Kaffe VM? no
Is this gij/gcj? no
ant.core.lib: /usr/share/ant/lib/ant.jar
ant.home: /usr/share/ant
-------------------------------------------
ANT_HOME/lib jar listing
-------------------------------------------
ant.home: /usr/share/ant
ant-antlr.jar (5756 bytes)
ant-contrib-0.3.jar (17708 bytes)
ant-jmf.jar (6745 bytes)
ant-junit.jar (102350 bytes)
ant-junit4.jar (7126 bytes)
ant-launcher.jar (12321 bytes)
ant-swing.jar (7563 bytes)
ant-testutil.jar (15198 bytes)
ant.jar (1937098 bytes)
Thanks !
It would be helpful if you posted your build.xml too.
You usually get this error if Ant sees a task, but there's a problem with the definition.
Here's my recommendation:
In your project create a directory antlib/ant-contrib.
Download this zip file. Ant-contrib is a wee bit strange is that there is a separate jar for C compiling and for all of the other Ant tasks. The latest version is 1.0b3. When you unzip this zip file, you will see ant-contrib-1.0b3.jar inside this folder.
Put that ant-contrib-1.0b3.jar inside the antlib/ant-contrib folder.
Now, in your build.xml, use the following <taskdef/>:
<taskdef resource="net/sf/antcontrib/antlib.xml">
<classpath>
<fileset dir="${basedir}/antlib/ant-contrib"/>
</classpath>
</taskdef>
Make sure this is not inside a target. You want this to be executed before any targets are executed.
I like doing the definition this way because the Ant Contrib jar file becomes part of my project, and anyone who needs to run my project will not have to manually install the Ant Contrib jar before they can use my project.
Take a look at your build.xml and see where that <Runtarget> task is being used. I've never used it, and the documentation for this task is so clear and helpful. Actually, I'm not even sure if it works. If you are still having problems, you try to see if you can remove the defined <target/> that contains this task, and see if that gets rid of the issue.
Removed ant-contrib-0.3.jar and added ant-contrib-1.0b3.jar and ant-contrib.jar to my ANT_HOME directory since these are the jars installed with https://code.google.com/p/winant/ (and it was working on windows machines).
This did the trick.
I got this error when I included guava-11.0-rc1.jar which contains the package com.google.common.* . But when I try to package it, it gives me the error:
Error preverifying class com.google.common.collect.Ordering MyApp line 0
BlackBerry Packaging Problem
Can anybody tell me what can be done to solve this? Thanks in advance.
Make sure the classes in that library are Java-ME compatible. Remember CLDC is a subset of Java SE and the equivalent desktop compilation level would be 1.2
If they were compatible, then to solve the preverification error you must first preverify your jar. You might be wondering what preverification is. There's a good explanation in this answer.
Preverification is usually done (or should be done) by the Eclipse plugin, but some versions do not. If this is your case, you should do it manually. In your JDE folder, there is a tool called preverify. You could find it in a path that typically looks like this in a Windows machine:
(1) C:\Program files\Research In Motion\BlackBerry JDE <vers>\bin\
You'll also need a library called net_rim_api.jar located in a path like this:
(2) C:\Program files\Research In Motion\BlackBerry JDE <vers>\lib\net_rim_api.jar`
This is all you need to launch the command. Open command line and change dir to the bin folder (1). Then type :
preverify -classpath <classpath for lib> -d <output directory> <file to preverify>
Where:
<classpath for lib> is the path in (2)
<output directory> is the directory where the preverified jar will be saved.
<file to preverify> is the absolute path to the file you want to preverify (guava-11.0-rc1.jar in your case)
If everything went well, now you'll have a new jar in <output directory> which is slightly bigger than the input jar file. This is the one you should include in your project. The preverify tool does not change your original jar.
I have downloaded the Activity 5.10 zip file and then i have downloaded and configured the Apache ANT and i test it and it worked successfully.
But i am unable to run the demo file as specified in this link http://activiti.org/userguide/#demo.setup
if i type the following using the cmd command line:-
C:\activiti-5.10\activiti-5.10\setup>ant demo.start
I will get the following error:-
'ant' is not recognized as an internal or external command, operable program or batch file.
Can anyone help me in identifying what is the problem?
BR
:::UPDATE:::
thanks for the reply, i have copied the ANT bin files inside the setup directory for the activity,, then i run the CMD command again ,, but i got the following error that i build failed,,
AS MENTIONED BELOW:-
C:\Users\Desktop\activiti-5.10\activiti-5.10\setup>ant demo.start
Buildfile: C:\Users\Desktop\activiti-5.10\activiti-5.10\setup\build.xml
demo.install:
internal.cfg.create:
[copy] Copying 1 file to C:\Users\Desktop\activiti-5.10\activiti-5.
10\setup\build\activiti-cfg
[zip] Building zip: C:\Users\Desktop\activiti-5.10\activiti-5.10\s
etup\build\activiti-cfg.jar
[echo] copying configuration to ../workspace/activiti-engine-examples/src/m
ain/config
[unzip] Expanding: C:\Users\Desktop\activiti-5.10\activiti-5.10\setu
p\build\activiti-cfg.jar into C:\Users\Desktop\activiti-5.10\activiti-5.
10\workspace\activiti-engine-examples\src\main\config
internal.classpath.libs:
internal.taskdef.launch:
h2.start:
[echo] starting H2 database...
[launch] launching cmd 'C:\Users\Desktop\activiti-5.10\activiti-5.10\
apps\h2\h2.start.bat ' in dir 'C:\Users\Desktop\activiti-5.10\activiti-5
.10\apps\h2'
[launch] waiting for launch completion msg 'TCP server running'...
[launch] 'java' is not recognized as an internal or external command,
[launch] operable program or batch file.
[launch] launched process completed
[echo] H2 database started
tomcat.start:
BUILD FAILED
C:\Users\Desktop\activiti-5.10\activiti-5.10\setup\build.xml:330: couldn
't find executable for script C:\Users\Desktop\activiti-5.10\activiti-5.
10\apps\apache-tomcat-6.0.32\bin\startup
Total time: 0 seconds
Looks like you didn't set the ant directory in you path variable. Either specifiy the entire path to ant or add it to the path variable
I typed tomcat.install and it solved the problem since I need to download the tomcat inside the apps directory.