I may just be going at this wrong, but I am not sure how to interact with Apache Jena on my computer. I think my main question revolves around where I store files and how I run them.
I use Atom editor and work in Python and Javascript normally. My goal here is to get a handle of how Jena and Fuseki work then potentially using Fuseki for the backend of a web app.
The tutorial, An Introduction to RDF and the Jena RDF API, links to Java files. Where do I store this file on my desktop and how can I run it?
While my question is about setting up my workspace/environment, I would appreciate feedback on more appropriate technologies.
Based on this tutorial I've gotten my workspace set up. I've removed the package identifier from my code.
Now I get this error:
Exception in thread "main" java.lang.NoClassDefFoundError:
org/apache/jena/rdf/model/ModelFactory at
Tutorial01.main(Tutorial01.java:34)
Caused by: java.lang.ClassNotFoundException:
org.apache.jena.rdf.model.ModelFactory
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
I think it's a JENAROOT Issue. I think I'm setting it and adding it to the path correctly. It's also mentioned here, but I haven't been able to troubleshoot it yet.
Anybody can point me in the right direction?
I got help of this via the Apache Jena support email. I think I must have caused an issue by changing the environmental variables for Jena upon first use.
Based on a script I received from a community member I ran a script named jenaJarsScript.sh in terminal:
unset JARS
for f in $JENA_HOME/lib/*.jar
do
JARS=$JARS:$f
export JARS
done
I then added $JARS to my classpath - now I can compile and run code without an issue.
Note: I'm not sure if this is the best way to set this up, but it works for me.
Related
I downloaded SocketTest project and made some changes to read data from MS SQL database. Added external library:
But I'm getting java.sql.SQLException: No suitable driver found... when I run the project.
I'm sure there is no mistake in my source code. Because I tested my class on alternate project. It's running smoothly. But I wonder why MS SQL library can't be seen even after I add that.
I also tried to use the newest version of MS SQL library but still no success.
I also tried to analyze project.xml file. But I guess solution is not there.
Please help me to solve this issue.
Thanks in advance.
Solution has been found. build.xml file has been cleared and copied from newly created NetBeans project.
this is the minecraft forges default gradle
i also search but didnt find any answers
C:\Users\masiha.DESKTOP-VBVOMDJ\.gradle\wrapper\dists\gradle-4.10.3-bin\31t79e2qsceia4mkbojplrgx
Exception in thread "main" java.util.zip.ZipException: error in opening zip file
at java.util.zip.ZipFile.open(Native Method)
at java.util.zip.ZipFile.<init>(Unknown Source)
at java.util.zip.ZipFile.<init>(Unknown Source)
at java.util.zip.ZipFile.<init>(Unknown Source)
at org.gradle.wrapper.Install.unzip(Install.java:215)
at org.gradle.wrapper.Install.access$600(Install.java:27)
at org.gradle.wrapper.Install$1.call(Install.java:75)
at org.gradle.wrapper.Install$1.call(Install.java:48)
at org.gradle.wrapper.ExclusiveFileAccessManager.access(ExclusiveFileAccessManager.java:69)
at org.gradle.wrapper.Install.createDist(Install.java:48)
at org.gradle.wrapper.WrapperExecutor.execute(WrapperExecutor.java:107)
at org.gradle.wrapper.GradleWrapperMain.main(GradleWrapperMain.java:61)
pleas help :)
This problem accrued to me yesterday as well, so I thought I might share my fix to this problem if this is still relevant.
While I am not familiar with Forge at all (I started using Fabric just a few days ago), how I fixed my problem was to change the settings in either the gradle.properties or build.gradle according to your mod's correct settings.
Most likely your problem occurs in gradle.properties. It might be the version number that isn't correct, and a quick research of the current Forge or Minecraft version you're planning on using would help. The same applies to build.gradle.
In the crash log you've provided, most of the errors are coming from the class org.gradle.wrapper.*, so it's likely to assume that it is something in one of the 2 files.
If neither of that worked, it might be because you've entered an incorrect path to your main class in the forge.mod.json file.
For example, if your classpath is hi.mashia.main, then you'll have to enter it in the 'main' field there as well. This could've happen if you've changed your classpath or name lately, or just installed a new Forge environment and didn't set this thing up.
Again, I'm not using Forge, and I'm just telling my own experience with things.
So if this doesn't help, just try to look for common Gradle errors in the Gradle User Manual, or if this doesn't help, then you might want to look into the Forge Docs or something similar to that. Google search or YouTube might help with that too.
A video that I think you could potentially find helpful is this one by TechnoVision.
It might be outdated, but not too outdated.
Really hope this helps!
Happy Coding!
I am junior java developer and I am trying to test a data pipeline project given in this link
> https://northconcepts.com/docs/examples/read-a-csv-file/
in my local machine.
I get many errors that are generated such as :
Description Resource Path Location Type The import
com.northconcepts.datapipeline.core.DataEndpoint cannot be
resolved ReadCsvFile.java /ReadCSVFile/src/PipelineCSV line 6 Java
Problem
So, I think that I need to import jar files which are related to the imported libraries given in the code.
The problem is that I can not find online any jar file related to the northconcepts.datapipeline libraries to download and work with!
Any help, please ?
The library is available here but you need to register to download it (and pay for it, if you want something other than the free express version).
You can test the code by following the getting started guide below to configure Maven/Gradle and get a license. It should be pretty quick.
https://northconcepts.com/docs/user-guide/#getting-started
The examples are also on GitHub.
i am getting this error when try to create new web service client.
IWAB0503E Unable to update Java build path. Please check your system environment.
Some web searching uncovered that what this error really means is “The Web Services generation tool detected multiple versions of the javax.xml.soap plug-in installed. Resolve this error by removing the conflicting plug-in.”
Sure enough, when I checked in Eclipse there were two versions.
WebService
I encountered two speed bumps when testing this theory:
There’s no easy way to uninstall a plug-in within the Eclipse UI, so I had to resort to removing the directory from eclipse\plugins directly from Windows Explorer.
Which version should I remove? It took me two tries to figure out which version was causing the error. Turns out that newer is not always better…in this case 1.3 was at fault and 1.2 (javax.xml.soap_1.2.0.v200905122109) was the version to keep.
This is old but, in my case the details of the error were:
IWAB0503E Unable to update Java build path. Please check your system environment.
java.io.FileNotFoundException: /lib/saaj.jar
So \lib\saaj.jar was not found in folder
C:\sts-4.8.0\sts-4.8.0.RELEASE\plugins\javax.xml.soap_1.3.0.v201105210645\
I created the folder lib and copied saaj.jar in it from another STS instance that I had and then it worked.
I tried the instructions at this tutorial (http://www.phpied.com/jslint-on-mac-textmate/) to run jslint with textmate but getting stuck at step at the last step of "Step 1"
Here is the error:
Exception in thread "main" java.lang.NoClassDefFoundError: org/mozilla/javascript/tools/shell/Main Caused by: java.lang.ClassNotFoundException: org.mozilla.javascript.tools.shell.Main at java.net.URLClassLoader$1.run(URLClassLoader.java:202) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:190) at java.lang.ClassLoader.loadClass(ClassLoader.java:307) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301) at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
Thanks
The whole process described in the article seems a bit hackish.
Both the js-tools and javascript-tools bundles work pretty well for me.
It's easier to avoid Rhino and use JavascriptCore, the JS engine built into OS X. I use JSLintMate, which presents more readable feedback, can use JSHint instead of JSLint, can run on save, and lets you set custom options in various ways (e.g., a config file in each project repo, global options across all projects).
Your ‘CLASSPATH‘ isn't set up correctly. You need to download a copy of mozilla rhino and ensure that the resulting jar file is mentioned in your ‘$CLASSPATH‘ environment variable.
You may have better luck with jslint4java which includes a bundled copy of rhino.