chore(spotless): switch to palantir-java-format

.editorconfig

@@ -9,4 +9,7 @@ indent_size = 4
 end_of_line = lf
 charset = utf-8
 trim_trailing_whitespace = false
-insert_final_newline = false
+insert_final_newline = false
+
+[build.gradle]
+indent_style = tab

build.gradle

@@ -34,13 +34,16 @@ tasks.named('test') {
 
 spotless {
 	java {
-		importOrder('groovy', 'java', 'javax', '')
+		palantirJavaFormat()
+		importOrder('java', 'javax', '')
+		removeUnusedImports()
 		indentWithSpaces(4)
 		trimTrailingWhitespace()
 		endWithNewline()
+
+		target 'src/*/java/**/*.java'
 	}
 	groovyGradle {
 		target '*.gradle' // default target of groovyGradle
-		greclipse()
 	}
 }

src/main/java/to/wetransform/hale/transformer/api/TransformerApiApplication.java

@@ -9,5 +9,4 @@ public class TransformerApiApplication {
     public static void main(String[] args) {
         SpringApplication.run(TransformerApiApplication.class, args);
     }
-
 }

src/test/java/to/wetransform/hale/transformer/api/TransformerApiApplicationTests.java

@@ -7,7 +7,5 @@
 class TransformerApiApplicationTests {
 
     @Test
-    void contextLoads() {
-    }
-
+    void contextLoads() {}
 }