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Java importOrder support for sorting wildcards last (#954 fixes #879)
2 parents c687694 + 01383e0 commit 72e8c21

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12 files changed

+151
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‎CHANGES.md

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Original file line numberDiff line numberDiff line change
@@ -10,6 +10,7 @@ This document is intended for Spotless developers.
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We adhere to the [keepachangelog](https://keepachangelog.com/en/1.0.0/) format (starting after version `1.27.0`).
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## [Unreleased]
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* Added `wildcardsLast` option for Java `ImportOrderStep` ([#954](https://github.com/diffplug/spotless/pull/954))
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## [2.18.0] - 2021-09-30
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### Added

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

Lines changed: 19 additions & 7 deletions
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@@ -1,5 +1,5 @@
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/*
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* Copyright 2016-2020 DiffPlug
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* Copyright 2016-2021 DiffPlug
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
@@ -36,6 +36,8 @@
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import com.diffplug.spotless.FormatterStep;
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public final class ImportOrderStep {
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private static final boolean WILDCARDS_LAST_DEFAULT = false;
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private final String lineFormat;
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public static ImportOrderStep forGroovy() {
@@ -51,19 +53,27 @@ private ImportOrderStep(String lineFormat) {
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}
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public FormatterStep createFrom(String... importOrder) {
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return createFrom(WILDCARDS_LAST_DEFAULT, importOrder);
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}
58+
59+
public FormatterStep createFrom(boolean wildcardsLast, String... importOrder) {
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// defensive copying and null checking
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List<String> importOrderList = requireElementsNonNull(Arrays.asList(importOrder));
56-
return createFrom(() -> importOrderList);
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return createFrom(wildcardsLast, () -> importOrderList);
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}
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public FormatterStep createFrom(File importsFile) {
66+
return createFrom(WILDCARDS_LAST_DEFAULT, importsFile);
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}
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public FormatterStep createFrom(boolean wildcardsLast, File importsFile) {
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Objects.requireNonNull(importsFile);
61-
return createFrom(() -> getImportOrder(importsFile));
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return createFrom(wildcardsLast, () -> getImportOrder(importsFile));
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}
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private FormatterStep createFrom(Supplier<List<String>> importOrder) {
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private FormatterStep createFrom(boolean wildcardsLast, Supplier<List<String>> importOrder) {
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return FormatterStep.createLazy("importOrder",
66-
() -> new State(importOrder.get(), lineFormat),
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() -> new State(importOrder.get(), lineFormat, wildcardsLast),
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State::toFormatter);
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}
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@@ -92,14 +102,16 @@ private static final class State implements Serializable {
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private final List<String> importOrder;
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private final String lineFormat;
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private final boolean wildcardsLast;
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96-
State(List<String> importOrder, String lineFormat) {
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State(List<String> importOrder, String lineFormat, boolean wildcardsLast) {
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this.importOrder = importOrder;
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this.lineFormat = lineFormat;
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this.wildcardsLast = wildcardsLast;
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}
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FormatterFunc toFormatter() {
102-
return raw -> new ImportSorter(importOrder).format(raw, lineFormat);
114+
return raw -> new ImportSorter(importOrder, wildcardsLast).format(raw, lineFormat);
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}
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}
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}

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

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@@ -1,5 +1,5 @@
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/*
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* Copyright 2016 DiffPlug
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* Copyright 2016-2021 DiffPlug
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
@@ -29,9 +29,11 @@ final class ImportSorter {
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static final String N = "\n";
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private final List<String> importsOrder;
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private final boolean wildcardsLast;
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33-
ImportSorter(List<String> importsOrder) {
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ImportSorter(List<String> importsOrder, boolean wildcardsLast) {
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this.importsOrder = new ArrayList<>(importsOrder);
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this.wildcardsLast = wildcardsLast;
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}
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String format(String raw, String lineFormat) {
@@ -79,7 +81,7 @@ String format(String raw, String lineFormat) {
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}
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scanner.close();
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82-
List<String> sortedImports = ImportSorterImpl.sort(imports, importsOrder, lineFormat);
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List<String> sortedImports = ImportSorterImpl.sort(imports, importsOrder, wildcardsLast, lineFormat);
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return applyImportsToDocument(raw, firstImportLine, lastImportLine, sortedImports);
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}
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‎lib/src/main/java/com/diffplug/spotless/java/ImportSorterImpl.java

Lines changed: 37 additions & 13 deletions
Original file line numberDiff line numberDiff line change
@@ -1,5 +1,5 @@
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/*
2-
* Copyright 2016 DiffPlug
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* Copyright 2016-2021 DiffPlug
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
@@ -15,13 +15,7 @@
1515
*/
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package com.diffplug.spotless.java;
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18-
import java.util.ArrayList;
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import java.util.Collections;
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import java.util.HashMap;
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import java.util.HashSet;
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import java.util.List;
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import java.util.Map;
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import java.util.Set;
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import java.util.*;
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import javax.annotation.Nullable;
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@@ -34,9 +28,10 @@ final class ImportSorterImpl {
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private final Map<String, List<String>> matchingImports = new HashMap<>();
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private final List<String> notMatching = new ArrayList<>();
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private final Set<String> allImportOrderItems = new HashSet<>();
31+
private final Comparator<String> ordering;
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38-
static List<String> sort(List<String> imports, List<String> importsOrder, String lineFormat) {
39-
ImportSorterImpl importsSorter = new ImportSorterImpl(importsOrder);
33+
static List<String> sort(List<String> imports, List<String> importsOrder, boolean wildcardsLast, String lineFormat) {
34+
ImportSorterImpl importsSorter = new ImportSorterImpl(importsOrder, wildcardsLast);
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return importsSorter.sort(imports, lineFormat);
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}
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@@ -49,11 +44,12 @@ private List<String> sort(List<String> imports, String lineFormat) {
4944
return getResult(lineFormat);
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}
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52-
private ImportSorterImpl(List<String> importOrder) {
47+
private ImportSorterImpl(List<String> importOrder, boolean wildcardsLast) {
5348
List<String> importOrderCopy = new ArrayList<>(importOrder);
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normalizeStaticOrderItems(importOrderCopy);
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putStaticItemIfNotExists(importOrderCopy);
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template.addAll(importOrderCopy);
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ordering = new OrderingComparator(wildcardsLast);
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this.allImportOrderItems.addAll(importOrderCopy);
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}
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@@ -119,7 +115,7 @@ private void filterMatchingImports(List<String> imports) {
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* not matching means it does not match any order item, so it will be appended before or after order items
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*/
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private void mergeNotMatchingItems(boolean staticItems) {
122-
Collections.sort(notMatching);
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sort(notMatching);
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int firstIndexOfOrderItem = getFirstIndexOfOrderItem(notMatching, staticItems);
125121
int indexOfOrderItem = 0;
@@ -192,7 +188,7 @@ private void mergeMatchingItems() {
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continue;
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}
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List<String> matchingItems = new ArrayList<>(strings);
195-
Collections.sort(matchingItems);
191+
sort(matchingItems);
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// replace order item by matching import statements
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// this is a mess and it is only a luck that it works :-]
@@ -218,6 +214,10 @@ private void mergeMatchingItems() {
218214
}
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}
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217+
private void sort(List<String> items) {
218+
items.sort(ordering);
219+
}
220+
221221
private List<String> getResult(String lineFormat) {
222222
List<String> strings = new ArrayList<>();
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@@ -256,4 +256,28 @@ private List<String> getResult(String lineFormat) {
256256
return null;
257257
}
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259+
private static class OrderingComparator implements Comparator<String> {
260+
private final boolean wildcardsLast;
261+
262+
private OrderingComparator(boolean wildcardsLast) {
263+
this.wildcardsLast = wildcardsLast;
264+
}
265+
266+
@Override
267+
public int compare(String string1, String string2) {
268+
int string1WildcardIndex = string1.indexOf('*');
269+
int string2WildcardIndex = string2.indexOf('*');
270+
boolean string1IsWildcard = string1WildcardIndex >= 0;
271+
boolean string2IsWildcard = string2WildcardIndex >= 0;
272+
if (string1IsWildcard == string2IsWildcard) {
273+
return string1.compareTo(string2);
274+
}
275+
int prefixLength = string1IsWildcard ? string1WildcardIndex : string2WildcardIndex;
276+
boolean samePrefix = string1.regionMatches(0, string2, 0, prefixLength);
277+
if (!samePrefix) {
278+
return string1.compareTo(string2);
279+
}
280+
return (string1IsWildcard == wildcardsLast) ? 1 : -1;
281+
}
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}
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}

‎plugin-gradle/CHANGES.md

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@@ -3,6 +3,7 @@
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We adhere to the [keepachangelog](https://keepachangelog.com/en/1.0.0/) format (starting after version `3.27.0`).
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55
## [Unreleased]
6+
* Added `wildcardsLast()` option for Java `importOrder` ([#954](https://github.com/diffplug/spotless/pull/954))
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## [5.15.2] - 2021-09-27
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### Changed

‎plugin-gradle/src/main/java/com/diffplug/gradle/spotless/JavaExtension.java

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@@ -17,6 +17,7 @@
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import static com.diffplug.gradle.spotless.PluginGradlePreconditions.requireElementsNonNull;
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20+
import java.io.File;
2021
import java.util.Objects;
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import javax.inject.Inject;
@@ -57,13 +58,51 @@ public LicenseHeaderConfig licenseHeaderFile(Object licenseHeaderFile) {
5758
return licenseHeaderFile(licenseHeaderFile, LICENSE_HEADER_DELIMITER);
5859
}
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60-
public void importOrder(String... importOrder) {
61-
addStep(ImportOrderStep.forJava().createFrom(importOrder));
61+
public ImportOrderConfig importOrder(String... importOrder) {
62+
return new ImportOrderConfig(importOrder);
6263
}
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64-
public void importOrderFile(Object importOrderFile) {
65+
public ImportOrderConfig importOrderFile(Object importOrderFile) {
6566
Objects.requireNonNull(importOrderFile);
66-
addStep(ImportOrderStep.forJava().createFrom(getProject().file(importOrderFile)));
67+
return new ImportOrderConfig(getProject().file(importOrderFile));
68+
}
69+
70+
public class ImportOrderConfig {
71+
final String[] importOrder;
72+
final File importOrderFile;
73+
74+
boolean wildcardsLast = false;
75+
76+
ImportOrderConfig(String[] importOrder) {
77+
this.importOrder = importOrder;
78+
importOrderFile = null;
79+
addStep(createStep());
80+
}
81+
82+
ImportOrderConfig(File importOrderFile) {
83+
importOrder = null;
84+
this.importOrderFile = importOrderFile;
85+
addStep(createStep());
86+
}
87+
88+
/** Sorts wildcard imports after non-wildcard imports, instead of before. */
89+
public ImportOrderConfig wildcardsLast() {
90+
return wildcardsLast(true);
91+
}
92+
93+
public ImportOrderConfig wildcardsLast(boolean wildcardsLast) {
94+
this.wildcardsLast = wildcardsLast;
95+
replaceStep(createStep());
96+
return this;
97+
}
98+
99+
private FormatterStep createStep() {
100+
ImportOrderStep importOrderStep = ImportOrderStep.forJava();
101+
102+
return importOrderFile != null
103+
? importOrderStep.createFrom(wildcardsLast, getProject().file(importOrderFile))
104+
: importOrderStep.createFrom(wildcardsLast, importOrder);
105+
}
67106
}
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/** Removes any unused imports. */

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

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@@ -7,8 +7,14 @@ import java.lang.Runnable;
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import org.comments.be
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import org.comments.removed
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*/
10-
import static java.lang.Runnable.*;
10+
import static java.lang.Runnable.*;
1111
/*
1212
import other.multiline.comments
13-
import will.be.removed.too */
13+
import will.be.removed.too */
1414
import static com.foo.Bar
15+
import java.awt.*;
16+
import java.util.*;
17+
import java.util.List;
18+
import static com.github.tomakehurst.wiremock.client.WireMock.*;
19+
import static com.github.tomakehurst.wiremock.client.WireMock.equalTo;
20+
import static org.hamcrest.Matchers.*;

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

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import java.awt.*;
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import java.lang.Runnable;
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import java.lang.Thread;
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import java.util.*;
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import java.util.List;
36

47
import org.dooda.Didoo;
58

69
import static java.lang.Exception.*;
710
import static java.lang.Runnable.*;
11+
import static org.hamcrest.Matchers.*;
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913
import static com.foo.Bar;
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import static com.github.tomakehurst.wiremock.client.WireMock.*;
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import static com.github.tomakehurst.wiremock.client.WireMock.equalTo;

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

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import static com.foo.Bar;
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import static com.github.tomakehurst.wiremock.client.WireMock.*;
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import static com.github.tomakehurst.wiremock.client.WireMock.equalTo;
24
import static java.lang.Exception.*;
35
import static java.lang.Runnable.*;
6+
import static org.hamcrest.Matchers.*;
47

8+
import java.awt.*;
59
import java.lang.Runnable;
610
import java.lang.Thread;
11+
import java.util.*;
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import java.util.List;
713
import org.dooda.Didoo;

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

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import static com.foo.Bar;
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import static com.github.tomakehurst.wiremock.client.WireMock.equalTo;
3+
import static com.github.tomakehurst.wiremock.client.WireMock.*;
4+
import static java.lang.Exception.*;
5+
import static java.lang.Runnable.*;
6+
import static org.hamcrest.Matchers.*;
7+
8+
import java.awt.*;
9+
import java.lang.Runnable;
10+
import java.lang.Thread;
11+
import java.util.List;
12+
import java.util.*;
13+
import org.dooda.Didoo;

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