Grails Version: 3.0.7
Groovy Version: 2.4.4
JVM Version: 1.8.0_51
I must be missing something really simple here.
I've added a grails plugin to my project as defined in the read me :
compile 'org.grails.plugins:geocode:0.3'
I can see the relevant dependencies have been pulled down from the repository.
However, when trying to inject the service within my controller using :
def geocodingService
I receive the following error upon execution :
Caused by: java.lang.NullPointerException: Cannot invoke method getPoint() on null object
The relevant line of code is :
Point location = geocodingService.getPoint('XXX XXX, UK')
My guess is the dependancy injection is failing but can anybody please tell me the mistake I am making?
Note : Copied my answer from another almost identical questions ...
OK, this seems to be down to me stupidly trying to use a grails 2.x plugin in a grails 3.x plugin.
There are various steps to go through to upgrade a plugin from 2.x to 3.x all detailed within the grails documentation.
My immediate solution was to simply create a new service and copy the code from the plugin into my application. Worked just fine.
Grails 3.x plugins : https://bintray.com/grails/plugins
Grails 2.x plugins : https://grails.org/plugins/
It's not obvious unless you navigate via the grails site. If you come in for example from Google directly to a plugin page, compatibility is shown as 2.5.x >
However, this actually seems to mean greater than 2.5.x but less than 3.x
Hope this helps should anyone else encounter this.
Related
| Grails Version: 3.0.7
| Groovy Version: 2.4.4
| JVM Version: 1.8.0_51
I am trying to install a grails plugin : Slug Generator 0.5 (https://grails.org/plugin/slug-generator)
However, the service dependency injection is not working correctly in either domain classes or services and is always a null reference.
This is not the first time I have experienced plugins not successfully injecting services : Grails Geocode plugin dependency injection issue
Basically, it seems I'm at a point where I cannot use some plugins within my application as I cannot count on service dependency injection working.
If anybody could offer some insight, i'd be most appreciative.
I'm following the following example code :
class Dummy {
def slugGeneratorService
String name
String slug = ""
def beforeInsert() {
this.slug = slugGeneratorService.generateSlug(this.class, "slug", name)
}
def beforeUpdate() {
if (isDirty('name')) {
this.slug = slugGeneratorService.generateSlug(this.class, "slug", name)
}
}
}
Here is an example error log :
Caused by: java.lang.NullPointerException: Cannot invoke method generateSlug() on null object
One thing I've noticed is that at the command line, the following returns nothing :
$ grails list-plugins | grep slug
However, If I search for another plugin, I do get a result :
$ grails list-plugins | grep joda
joda-time
I can clearly see (via IntelliJ) that the slug generator plugin is in the classpath and I can actually access all the source via the External libraries.
Maybe that's a hint to the problem?
OK, this seems to be down to me stupidly trying to use a grails 2.x plugin in a grails 3.x plugin.
There are various steps to go through to upgrade a plugin from 2.x to 3.x all detailed within the grails documentation.
My immediate solution was to simply create a new service and copy the code from the plugin into my application. Worked just fine.
Grails 3.x plugins : https://bintray.com/grails/plugins
Grails 2.x plugins : https://grails.org/plugins/
It's not obvious unless you navigate via the grails site. If you come in for example from Google directly to a plugin page, compatibility is shown as 2.5.x >
However, this actually seems to mean greater than 2.5.x but less than 3.x
Hope this helps should anyone else encounter this.
I downloaded a serverpush example called GrailsChat and trying to run is on grails 2.4.4.
I had some issues with dependencies missing that took me a while to figure out (don't think it's related but just mentioning it).
When I run grails run-app I get:
| Application metadata not found, please run: grails upgrade
When I run grails upgrade I get
| Script 'Upgrade' not found, did you mean:
1) MigrateDocs
2) IntegrateWith
3) SetGrailsVersion
4) InstallDependency
5) DependencyReport
> Please make a selection or enter Q to quit:
I figure the issue is probably to do with the grails version I have being newer than the grails version that the sample app was targetting but I don't want to move back version simply to run an example (I'd rather understand the underlying issue).
Can anyone point me to some documentation that will help me understand what the application metadata is and how to move forward please?
Grails Upgrade command is removed in 2.4. You might have to upgrade the app manually following the guide.
Or you can just run the service wrapper which will download the grails version automatically base on the app.
./grailsw run-app
It seems like you have missed any one of mentioned
Not set grails proper Version
Missing application.properties file (with proper grails version)
I have literally tried every possible combination that I can think of to install weceem as a plugin into an existing sample application that I'm practicing grails development on, nothing has worked. I've tried all the recommended repositories in various combinations and that did not work. I have tried several versions of grails between 2.3.7 to 2.4.2 and cannot get it to work. I followed the documentation on the site for installing the plugin and was not able to get it to successfully work.
Is there another CMS that runs in grails applications that's worth looking at?
Yes, there is one (indeed a new one) called spud cms which can be used. BTW, what was the error you were getting while using weceem plugin?
The plugin should be defined in the plugin section in BuildConfig.groovy as:
plugins {
compile ":weceem:1.2"
}
The plugin should work for version of grails-2.3.x (version 2.3.7 should be ok -- the demo application for weceem you can find there https://github.com/jCatalog/weceem-app ); the version of grails-2.4 is not supported yet in weceem-1.2 (but should be supported in new release that is planned in month or two). Please, provide the error stack-trace, to see the problem.
After some help from July Antonicheva, this is what I did to get it working:
1) Switched to NetBeans IDE
2) I downloaded version 7 of Java (Oracle)
3) Created a brand new project based on Grails 2.3.7
4) Added weceem plugin and made some adjustments to Datasource.groovy to add MySQL support
Everything is working fine now without errors. The current version of weceem needs Grails 2.3.7 and Java 7 in order for it work. I mentioned that I switched to NetBeans IDE, I found it to be a little easier to work with than eclipse and for some reason it seemed to run a little faster.
I'm pretty new to grails so it's possible that i've missed something obvious, but I am trying to utilise the JMS plugin. I've included the following within the plugins section of my BuildConfig.groovy
compile ":jms:1.2"
However when I compile the app I get lots of "unable to resolve class" exceptions for imports within the jms plugin (40 in total, javax.jms.* and org.springframework.jms.* mostly).
e.g.
| Error Compilation error: startup failed:
C:\dev\prj\grails\tApp\target\work\plugins\jms-1.2\grails-app\utils\DefaultJmsBe
ans.groovy: 16: unable to resolve class org.springframework.jms.listener.Default
MessageListenerContainer
# line 16, column 1.
import org.springframework.jms.listener.DefaultMessageListenerContainer
^
C:\dev\prj\grails\tApp\target\work\plugins\jms-1.2\grails-app\services\grails\pl
ugin\jms\JmsService.groovy: 22: unable to resolve class javax.jms.Message
# line 22, column 1.
import javax.jms.Message
Is anyone able to point me in the right direction? The issue can be reproduced just by adding the plugin to the BuildConfig.groovy as mentioned above to a new grails project .
Grails version 2.3.3
Many thanks
Tom
While doing a Grails 2.2 -> 2.3.4 upgrade I ran into a similar issue and was able to get things working by manually adding spring-jms to my dependencies in BuildConfig.groovy:
compile 'org.springframework:spring-jms:3.2.5.RELEASE'
It's odd that this would stop working now of course, since the jms plugin hasn't changed in a very long time. My guess is that it depends on the spring-jms lib, but didn't have it listed as a dependency, instead relying on grails to bring it in. According to the 2.3.x upgrade guide, there have been changes to what grails brings in now, so perhaps spring-jms stopped getting a free ride.
The Grails MX website has a write-up that might help; it's built using 2.3.4:
http://grails.org.mx/2013/12/20/quickstart-jms-en-grails/
It was pretty helpful to me in getting a sample application up and running. It's in Spanish though, so may need to have Google translate it for you...
Have you tried executing the command grails refresh-dependencies before running grails run-app?
I wrote a blog post on installing a Grails plugin if you need more details.
I'm using datasources in my Grails project.
When I edit a groovy file with server running I get the following error:
Running Grails application.. java.lang.IllegalArgumentException: Must
supply a resource type for JNDI configuration
How can I configure grails.naming.entries in Config.groovy to fix this?
Note: I'm using grails 1.3.6
Tks
I'm using 1.3.7 and hit the same issue. There's a couple bugs in the JIRA about this, looks like they were finally fixed in 2.0-M1. There's a patch for 1.3.1+ versions here, but I haven't tested that yet.
Link to possible patch: http://jira.grails.org/browse/GRAILS-7021