it discovered a set of issue:
## Issue 1. plugin wasn't deployed in several last builds from master branch.
```
Execution failed for task ':validatePlugins'.
> Plugin validation failed with 1 problem:
- Error: Type 'org.robovm.gradle.tasks.AbstractSimulatorTask' method 'getDeviceType()' should not be annotated with: @internal.
```
fix: annotation was removed (method doesn't look as pure getter) and `validatePlugins` option was added to build invocation
## Issue 2. its discovered that after MobiVM#766 applied build failed with:
```
* What went wrong:
A problem occurred configuring project ':facebook-share-kit'.
> Could not create task ':facebook-share-kit:launchIPhoneSimulator'.
> Could not create task of type 'IPhoneSimulatorTask'.
> Could not generate a decorated class for type IPhoneSimulatorTask.
> org/robovm/compiler/log/Logger
Caused by: java.lang.NoClassDefFoundError: org/robovm/compiler/log/Logger
```
root case of it: `robovm-compiler` dependency was excluded from shadowJar (thats a bug).
But it was working as previously pom.xml contained runtime dependency to `robovm-compiler` (that's another bug as we produce shadowJar with merged dependencies)
## Issue 3: pom.xml for gradle plugin is empty
```
<?xml version="1.0" encoding="UTF-8"?>
<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<!-- This module was also published with a richer model, Gradle metadata, -->
<!-- which should be used instead. Do not delete the following line which -->
<!-- is to indicate to Gradle or any Gradle module metadata file consumer -->
<!-- that they should prefer consuming it instead. -->
<!-- do_not_remove: published-with-gradle-metadata -->
<modelVersion>4.0.0</modelVersion>
<groupId>com.mobidevelop.robovm</groupId>
<artifactId>robovm-gradle-plugin</artifactId>
<version>2.3.22-SNAPSHOT</version>
</project>
```
it happens as `plugin-publish` uses `pluginMaven` publication but we set metadata for `mavenJava`, due another bug both `pluginMaven` and `mavenJava` are being deployed and `pluginMaven` overrides first (thats another issues)
## Issue 4: two artifacts are being deployed under same id: `pluginMaven` and `mavenJava`
it can be observer as following warning:
> Multiple publications with coordinates 'com.mobidevelop.robovm:robovm-gradle-plugin:2.3.22-SNAPSHOT' are published to repository 'mavenLocal'. The publications 'mavenJava' in root project 'robovm-gradle-plugin' and 'pluginMaven' in root project 'robovm-gradle-plugin' will overwrite each other!
Fixes:
1. To have single prorely configured artifact `mavenJava` to be removed and `pluginMaven` used as described in `plugin-publish` docs;
2. `Caused by: java.lang.NoClassDefFoundError: org/robovm/compiler/log/Logger` is fixed by removing 'exclude(dependency' -- compiler has to be packed into shadowJar