Filter jars in Gradle class path resolver

Author: fwcd

shared/src/main/kotlin/org/javacs/kt/classpath/GradleClassPathResolver.kt

@@ -81,6 +81,8 @@ private fun readDependenciesViaGradleCLI(projectDirectory: Path, gradleScripts:
     val dependencies = findGradleCLIDependencies(command, projectDirectory)
         ?.also { LOG.debug("Classpath for task {}", it) }
         .orEmpty()
+        .filter { it.toString().toLowerCase().endsWith(".jar") } // Some Gradle plugins seem to cause this to output POMs, therefore filter JARs
+        .toSet()
 
     tmpScripts.forEach(Files::delete)
     return dependencies