Fix semantics-aware sorting of static imports (#1713 improves #522)

Author: nedtwigg

lib/src/main/java/com/diffplug/spotless/java/ImportSorterImpl.java

@@ -347,18 +347,13 @@ private int compareFullyQualifiedClassName(String fqcn1, String fqcn2) {
 		private String[] splitFqcnAndMember(String importString) {
 			String s = importString.substring(STATIC_KEYWORD.length()).trim();
 
-			String fqcn;
-			String member;
-
+			/*
+			 * Static imports always contain a member or wildcard and it's always the last
+			 * segment.
+			 */
 			int dot = s.lastIndexOf(".");
-			if (!Character.isUpperCase(s.charAt(dot + 1))) {
-				fqcn = s.substring(0, dot);
-				member = s.substring(dot + 1);
-			} else {
-				fqcn = s;
-				member = null;
-			}
-
+			String fqcn = s.substring(0, dot);
+			String member = s.substring(dot + 1);
 			return new String[]{fqcn, member};
 		}
 

testlib/src/main/resources/java/importsorter/JavaCodeSortedLexicographic.test

@@ -1,3 +1,7 @@
+import static org.mockito.Mockito.RETURNS_DEEP_STUBS;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+
 import static com.example.Test.*;
 import static com.example.Test.A_CONST;
 import static com.example.Test.Nested.B_CONST;

testlib/src/main/resources/java/importsorter/JavaCodeSortedSemanticSort.test

@@ -1,7 +1,11 @@
+import static org.mockito.Mockito.RETURNS_DEEP_STUBS;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+
 import static com.example.Test.*;
 import static com.example.Test.A_CONST;
-import static com.example.Test.Nested.B_CONST;
 import static com.example.Test.Z_CONST;
+import static com.example.Test.Nested.B_CONST;
 
 import com.example.Test;
 import com.example.Test.*;

testlib/src/main/resources/java/importsorter/JavaCodeUnsortedSemanticSort.test

@@ -13,3 +13,7 @@ import com.sun.jna.platform.win32.Guid.CLSID;
 import com.example.a.A;
 import com.example.b;
 import com.example.c.C;
+
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.RETURNS_DEEP_STUBS;
+import static org.mockito.Mockito.when;