Shade json in configuration processor

This commit shades the json API in the configuration processor so that
it doesn't bring `android-json` to the classpath anymore.

Closes gh-10307

spring-boot-parent/src/checkstyle/checkstyle-suppressions.xml

@@ -22,4 +22,5 @@
 	<suppress files="Ansi.*\.java" checks="JavadocStyle" />
 	<suppress files="LogLevel\.java" checks="JavadocVariable" />
 	<suppress files="HelpMojo\.java" checks=".*"/>
+	<suppress files="[\\/]org.springframework.boot.configurationprocessor.json[\\/].*\.java$" checks=".*"/>
 </suppressions>

spring-boot-tools/spring-boot-configuration-processor/pom.xml

@@ -18,12 +18,7 @@
 		<main.basedir>${basedir}/../..</main.basedir>
 	</properties>
 	<dependencies>
- 		<!-- Compile (should stick to the bare minimum) -->
- 		<dependency>
-			<groupId>com.vaadin.external.google</groupId>
-			<artifactId>android-json</artifactId>
-		</dependency>
-		<!-- Test -->
+ 		<!-- Test -->
 		<dependency>
 			<groupId>org.projectlombok</groupId>
 			<artifactId>lombok</artifactId>

spring-boot-tools/spring-boot-configuration-processor/src/main/java/org/springframework/boot/configurationprocessor/json/JSON.java

+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.boot.configurationprocessor.json;
+
+class JSON {
+    /**
+     * Returns the input if it is a JSON-permissible value; throws otherwise.
+     */
+    static double checkDouble(double d) throws JSONException {
+        if (Double.isInfinite(d) || Double.isNaN(d)) {
+            throw new JSONException("Forbidden numeric value: " + d);
+        }
+        return d;
+    }
+
+    static Boolean toBoolean(Object value) {
+        if (value instanceof Boolean) {
+            return (Boolean) value;
+        } else if (value instanceof String) {
+            String stringValue = (String) value;
+            if ("true".equalsIgnoreCase(stringValue)) {
+                return true;
+            } else if ("false".equalsIgnoreCase(stringValue)) {
+                return false;
+            }
+        }
+        return null;
+    }
+
+    static Double toDouble(Object value) {
+        if (value instanceof Double) {
+            return (Double) value;
+        } else if (value instanceof Number) {
+            return ((Number) value).doubleValue();
+        } else if (value instanceof String) {
+            try {
+                return Double.valueOf((String) value);
+            } catch (NumberFormatException ignored) {
+            }
+        }
+        return null;
+    }
+
+    static Integer toInteger(Object value) {
+        if (value instanceof Integer) {
+            return (Integer) value;
+        } else if (value instanceof Number) {
+            return ((Number) value).intValue();
+        } else if (value instanceof String) {
+            try {
+                return (int) Double.parseDouble((String) value);
+            } catch (NumberFormatException ignored) {
+            }
+        }
+        return null;
+    }
+
+    static Long toLong(Object value) {
+        if (value instanceof Long) {
+            return (Long) value;
+        } else if (value instanceof Number) {
+            return ((Number) value).longValue();
+        } else if (value instanceof String) {
+            try {
+                return (long) Double.parseDouble((String) value);
+            } catch (NumberFormatException ignored) {
+            }
+        }
+        return null;
+    }
+
+    static String toString(Object value) {
+        if (value instanceof String) {
+            return (String) value;
+        } else if (value != null) {
+            return String.valueOf(value);
+        }
+        return null;
+    }
+
+    public static JSONException typeMismatch(Object indexOrName, Object actual,
+            String requiredType) throws JSONException {
+        if (actual == null) {
+            throw new JSONException("Value at " + indexOrName + " is null.");
+        } else {
+            throw new JSONException("Value " + actual + " at " + indexOrName
+                    + " of type " + actual.getClass().getName()
+                    + " cannot be converted to " + requiredType);
+        }
+    }
+
+    public static JSONException typeMismatch(Object actual, String requiredType)
+            throws JSONException {
+        if (actual == null) {
+            throw new JSONException("Value is null.");
+        } else {
+            throw new JSONException("Value " + actual
+                    + " of type " + actual.getClass().getName()
+                    + " cannot be converted to " + requiredType);
+        }
+    }
+}

spring-boot-tools/spring-boot-configuration-processor/src/main/java/org/springframework/boot/configurationprocessor/json/JSONException.java

+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.boot.configurationprocessor.json;
+
+// Note: this class was written without inspecting the non-free org.json sourcecode.
+
+/**
+ * Thrown to indicate a problem with the JSON API. Such problems include:
+ * <ul>
+ *   <li>Attempts to parse or construct malformed documents
+ *   <li>Use of null as a name
+ *   <li>Use of numeric types not available to JSON, such as {@link
+ *       Double#isNaN() NaNs} or {@link Double#isInfinite() infinities}.
+ *   <li>Lookups using an out of range index or nonexistent name
+ *   <li>Type mismatches on lookups
+ * </ul>
+ *
+ * <p>Although this is a checked exception, it is rarely recoverable. Most
+ * callers should simply wrap this exception in an unchecked exception and
+ * rethrow:
+ * <pre>  public JSONArray toJSONObject() {
+ *     try {
+ *         JSONObject result = new JSONObject();
+ *         ...
+ *     } catch (JSONException e) {
+ *         throw new RuntimeException(e);
+ *     }
+ * }</pre>
+ */
+public class JSONException extends Exception {
+
+    public JSONException(String s) {
+        super(s);
+    }
+}

spring-boot-tools/spring-boot-configuration-processor/src/main/java/org/springframework/boot/configurationprocessor/metadata/JSONOrderedObject.java

 /*
- * Copyright 2012-2017 the original author or authors.
+ * Copyright 2012-2018 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,8 +20,8 @@ import java.util.Iterator;
 import java.util.LinkedHashSet;
 import java.util.Set;
 
-import org.json.JSONException;
-import org.json.JSONObject;
+import org.springframework.boot.configurationprocessor.json.JSONException;
+import org.springframework.boot.configurationprocessor.json.JSONObject;
 
 /**
  * Extension to {@link JSONObject} that remembers the order of inserts.

spring-boot-tools/spring-boot-configuration-processor/src/main/java/org/springframework/boot/configurationprocessor/metadata/JsonConverter.java

 /*
- * Copyright 2012-2017 the original author or authors.
+ * Copyright 2012-2018 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,9 +20,8 @@ import java.lang.reflect.Array;
 import java.util.Collection;
 import java.util.Map;
 
-import org.json.JSONArray;
-import org.json.JSONObject;
-
+import org.springframework.boot.configurationprocessor.json.JSONArray;
+import org.springframework.boot.configurationprocessor.json.JSONObject;
 import org.springframework.boot.configurationprocessor.metadata.ItemMetadata.ItemType;
 
 /**

spring-boot-tools/spring-boot-configuration-processor/src/main/java/org/springframework/boot/configurationprocessor/metadata/JsonMarshaller.java

 /*
- * Copyright 2012-2017 the original author or authors.
+ * Copyright 2012-2018 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -27,9 +27,8 @@ import java.util.Iterator;
 import java.util.List;
 import java.util.Map;
 
-import org.json.JSONArray;
-import org.json.JSONObject;
-
+import org.springframework.boot.configurationprocessor.json.JSONArray;
+import org.springframework.boot.configurationprocessor.json.JSONObject;
 import org.springframework.boot.configurationprocessor.metadata.ItemMetadata.ItemType;
 
 /**

spring-boot-tools/spring-boot-configuration-processor/src/test/java/org/springframework/boot/configurationprocessor/ConfigurationMetadataAnnotationProcessorTests.java

 /*
- * Copyright 2012-2017 the original author or authors.
+ * Copyright 2012-2018 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -22,14 +22,14 @@ import java.io.IOException;
 import java.util.Arrays;
 import java.util.Collections;
 
-import org.json.JSONArray;
-import org.json.JSONObject;
 import org.junit.Before;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.rules.ExpectedException;
 import org.junit.rules.TemporaryFolder;
 
+import org.springframework.boot.configurationprocessor.json.JSONArray;
+import org.springframework.boot.configurationprocessor.json.JSONObject;
 import org.springframework.boot.configurationprocessor.metadata.ConfigurationMetadata;
 import org.springframework.boot.configurationprocessor.metadata.ItemDeprecation;
 import org.springframework.boot.configurationprocessor.metadata.ItemHint;