Gson

https://javadoc.io/doc/com.google.code.gson/gson/2.13.2
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Gson is a Java library for serializing and deserializing JSON that provides streaming support and...
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### skipValue()

Source: https://www.javadoc.io/doc/com.google.code.gson/gson/latest/com.google.gson/com/google/gson/stream/JsonReader.html

Skips the next value recursively. The behavior depends on the type of the next JSON token: Start of a JSON array or object: It and all of its nested values are skipped. Primitive value: The primitive value is skipped. Property name: Only the name but not the value of the property is skipped. End of a JSON array or object: Only this end token is skipped. End of JSON document: Skipping has no effect. Throws IOException.

```APIDOC
## skipValue
public void skipValue() throws IOException

Skips the next value recursively. This method is intended for use when the JSON token stream contains unrecognized or unhandled values. 
The behavior depends on the type of the next JSON token: 
      * Start of a JSON array or object: It and all of its nested values are skipped. 
      * Primitive value (for example a JSON number): The primitive value is skipped. 
      * Property name: Only the name but not the value of the property is skipped. `        skipValue()` has to be called again to skip the property value as well. 
      * End of a JSON array or object: Only this end token is skipped. 
      * End of JSON document: Skipping has no effect, the next token continues to be the end of the document.  

Throws:
    IOException
```

--------------------------------

### beginArray

Source: https://www.javadoc.io/doc/com.google.code.gson/gson/latest/com.google.gson/com/google/gson/stream/JsonReader.html

Consumes the next JSON token and asserts that it is the beginning of a JSON array.

```APIDOC
### beginArray
public void beginArray() throws IOException
Consumes the next token from the JSON stream and asserts that it is the beginning of a new array. 
Throws:
    
```

--------------------------------

### beginObject()

Source: https://www.javadoc.io/doc/com.google.code.gson/gson/latest/com.google.gson/com/google/gson/stream/JsonReader.html

Consumes the next token from the JSON stream and asserts that it is the beginning of a new object. Throws IllegalStateException if the next token is not the beginning of an object.

```APIDOC
## beginObject
public void beginObject() throws IOException

Consumes the next token from the JSON stream and asserts that it is the beginning of a new object.

Throws:
    IllegalStateException - if the next token is not the beginning of an object.
    IOException
```

--------------------------------

### Constructor

Source: https://www.javadoc.io/doc/com.google.code.gson/gson/latest/com.google.gson/com/google/gson/stream/JsonReader.html

Creates a new JsonReader instance that reads a JSON-encoded stream from the provided Reader.

```APIDOC
## JsonReader(Reader in)

### Description
Creates a new instance that reads a JSON-encoded stream from `in`.

### Parameters
* **in** (Reader) - The reader to read JSON from.
```

--------------------------------

### Configuring JsonReader

Source: https://www.javadoc.io/doc/com.google.code.gson/gson/latest/com.google.gson/com/google/gson/stream/JsonReader.html

This section details the methods available for customizing the behavior of JsonReader instances.

```APIDOC
## Configuration

The behavior of this reader can be customized with the following methods:

* `setStrictness(Strictness)`, the default is `Strictness.LEGACY_STRICT`
* `setNestingLimit(int)`, the default is 255

The default configuration of `JsonReader` instances used internally by the `Gson` class differs, and can be adjusted with the various `GsonBuilder` methods.
```

--------------------------------

### nextName()

Source: https://www.javadoc.io/doc/com.google.code.gson/gson/latest/com.google.gson/com/google/gson/stream/JsonReader.html

Returns the next token, a property name, and consumes it. Throws IllegalStateException if the next token is not a property name.

```APIDOC
## nextName
public String nextName() throws IOException

Returns the next token, a `property name`, and consumes it.

Throws:
    IllegalStateException - if the next token is not a property name.
    IOException
```

--------------------------------

### Object Handling

Source: https://www.javadoc.io/doc/com.google.code.gson/gson/latest/com.google.gson/com/google/gson/stream/JsonReader.html

Methods for managing JSON object parsing, including beginning, ending, and consuming property names.

```APIDOC
## beginObject()

### Description
Consumes the next token from the JSON stream and asserts that it is the beginning of a new object.

### Method
void
```

```APIDOC
## endObject()

### Description
Consumes the next token from the JSON stream and asserts that it is the end of the current object.

### Method
void
```

```APIDOC
## nextName()

### Description
Returns the next token, a `property name`, and consumes it.

### Method
String
```

--------------------------------

### JsonReader Constructor

Source: https://www.javadoc.io/doc/com.google.code.gson/gson/latest/com.google.gson/com/google/gson/stream/JsonReader.html

Initializes a new JsonReader to read a JSON-encoded stream from a given Reader.

```APIDOC
### JsonReader
public JsonReader(Reader in)
Creates a new instance that reads a JSON-encoded stream from `in`.
```

--------------------------------

### Parsing JSON with JsonReader

Source: https://www.javadoc.io/doc/com.google.code.gson/gson/latest/com.google.gson/com/google/gson/stream/JsonReader.html

This section explains how to create a JsonReader and use its methods to parse JSON objects and arrays.

```APIDOC
## Parsing JSON

To create a recursive descent parser for your own JSON streams, first create an entry point method that creates a `JsonReader`.

Next, create handler methods for each structure in your JSON text. You'll need a method for each object type and for each array type.

* Within **array handling** methods, first call `beginArray()` to consume the array's opening bracket. Then create a while loop that accumulates values, terminating when `hasNext()` is false. Finally, read the array's closing bracket by calling `endArray()`.
* Within **object handling** methods, first call `beginObject()` to consume the object's opening brace. Then create a while loop that assigns values to local variables based on their name. This loop should terminate when `hasNext()` is false. Finally, read the object's closing brace by calling `endObject()`.

When a nested object or array is encountered, delegate to the corresponding handler method.

When an unknown name is encountered, strict parsers should fail with an exception. Lenient parsers should call `skipValue()` to recursively skip the value's nested tokens, which may otherwise conflict.

If a value may be null, you should first check using `peek()`. Null literals can be consumed using either `nextNull()` or `skipValue()`.
```

--------------------------------

### Array Handling

Source: https://www.javadoc.io/doc/com.google.code.gson/gson/latest/com.google.gson/com/google/gson/stream/JsonReader.html

Methods for managing JSON array parsing, including beginning, ending, and checking for more elements.

```APIDOC
## beginArray()

### Description
Consumes the next token from the JSON stream and asserts that it is the beginning of a new array.

### Method
void
```

```APIDOC
## endArray()

### Description
Consumes the next token from the JSON stream and asserts that it is the end of the current array.

### Method
void
```

```APIDOC
## hasNext()

### Description
Returns true if the current array or object has another element.

### Method
boolean
```

--------------------------------

### peek()

Source: https://www.javadoc.io/doc/com.google.code.gson/gson/latest/com.google.gson/com/google/gson/stream/JsonReader.html

Returns the type of the next token without consuming it. Throws IOException.

```APIDOC
## peek
public JsonToken peek() throws IOException

Returns the type of the next token without consuming it.

Throws:
    IOException
```

--------------------------------

### Reader Configuration

Source: https://www.javadoc.io/doc/com.google.code.gson/gson/latest/com.google.gson/com/google/gson/stream/JsonReader.html

Methods for configuring reader behavior, including leniency, nesting limits, and strictness.

```APIDOC
## getNestingLimit()

### Description
Returns the nesting limit of this reader.

### Method
final int
```

```APIDOC
## getStrictness()

### Description
Returns the strictness of this reader.

### Method
final Strictness
```

```APIDOC
## isLenient()

### Description
Returns true if the `Strictness` of this reader is equal to `Strictness.LENIENT`.

### Method
boolean
```

```APIDOC
## setLenient(boolean lenient)

### Description
Deprecated. Please use `setStrictness(Strictness)` instead.

### Method
final void

### Parameters
* **lenient** (boolean) - Whether to enable lenient parsing.
```

```APIDOC
## setNestingLimit(int limit)

### Description
Sets the nesting limit of this reader.

### Method
final void

### Parameters
* **limit** (int) - The maximum nesting depth.
```

```APIDOC
## setStrictness(Strictness strictness)

### Description
Configures how liberal this parser is in what it accepts.

### Method
final void

### Parameters
* **strictness** (Strictness) - The strictness level for parsing.
```

--------------------------------

### getNestingLimit

Source: https://www.javadoc.io/doc/com.google.code.gson/gson/latest/com.google.gson/com/google/gson/stream/JsonReader.html

Returns the current nesting limit configured for the JSON reader.

```APIDOC
### getNestingLimit
public final int getNestingLimit()
Returns the nesting limit of this reader. 
Since:
    2.12.0 
See Also:
    
      * `setNestingLimit(int)`
```

--------------------------------

### nextDouble()

Source: https://www.javadoc.io/doc/com.google.code.gson/gson/latest/com.google.gson/com/google/gson/stream/JsonReader.html

Returns the double value of the next token, consuming it. If the next token is a string, this method will attempt to parse it as a double. Throws IllegalStateException if the next token is neither a number nor a string.

```APIDOC
## nextDouble
public double nextDouble() throws IOException

Returns the `double` value of the next token, consuming it. If the next token is a string, this method will attempt to parse it as a double using `Double.parseDouble(String)`.

Throws:
    IllegalStateException - if the next token is neither a number nor a string.
    NumberFormatException - if the next literal value cannot be parsed as a double.
    MalformedJsonException - if the next literal value is NaN or Infinity and this reader is not `lenient`.
    IOException
```

--------------------------------

### Path Information

Source: https://www.javadoc.io/doc/com.google.code.gson/gson/latest/com.google.gson/com/google/gson/stream/JsonReader.html

Methods to retrieve the current and previous JSON path within the document.

```APIDOC
## getPath()

### Description
Returns a JSONPath in _dot-notation_ to the next (or current) location in the JSON document.

### Method
String
```

```APIDOC
## getPreviousPath()

### Description
Returns a JSONPath in _dot-notation_ to the previous (or current) location in the JSON document.

### Method
String
```

--------------------------------

### nextString()

Source: https://www.javadoc.io/doc/com.google.code.gson/gson/latest/com.google.gson/com/google/gson/stream/JsonReader.html

Returns the string value of the next token, consuming it. If the next token is a number, this method will return its string form. Throws IllegalStateException if the next token is not a string.

```APIDOC
## nextString
public String nextString() throws IOException

Returns the `string` value of the next token, consuming it. If the next token is a number, this method will return its string form.

Throws:
    IllegalStateException - if the next token is not a string.
    IOException
```

--------------------------------

### getPath()

Source: https://www.javadoc.io/doc/com.google.code.gson/gson/latest/com.google.gson/com/google/gson/stream/JsonReader.html

Returns a JSONPath in dot-notation to the next (or current) location in the JSON document. This is useful for adding context to exceptions before a value is consumed.

```APIDOC
## getPath()

### Description
Returns a JSONPath in _dot-notation_ to the next (or current) location in the JSON document. That means: 
      * For JSON arrays the path points to the index of the next element (even if there are no further elements). 
      * For JSON objects the path points to the last property, or to the current property if its name has already been consumed. 
This method can be useful to add additional context to exception messages _before_ a value is consumed, for example when the peeked token is unexpected.

### Method
public String getPath()
```

--------------------------------

### nextNull()

Source: https://www.javadoc.io/doc/com.google.code.gson/gson/latest/com.google.gson/com/google/gson/stream/JsonReader.html

Consumes the next token from the JSON stream and asserts that it is a literal null. Throws IllegalStateException if the next token is not a JSON null.

```APIDOC
## nextNull
public void nextNull() throws IOException

Consumes the next token from the JSON stream and asserts that it is a literal null.

Throws:
    IllegalStateException - if the next token is not a JSON null.
    IOException
```

--------------------------------

### Token Peeking

Source: https://www.javadoc.io/doc/com.google.code.gson/gson/latest/com.google.gson/com/google/gson/stream/JsonReader.html

Allows peeking at the next JSON token without consuming it.

```APIDOC
## peek()

### Description
Returns the type of the next token without consuming it.

### Method
JsonToken
```

--------------------------------

### nextInt()

Source: https://www.javadoc.io/doc/com.google.code.gson/gson/latest/com.google.gson/com/google/gson/stream/JsonReader.html

Returns the int value of the next token, consuming it. If the next token is a string, this method will attempt to parse it as an int. If the next token's numeric value cannot be exactly represented by a Java int, this method throws. Throws IllegalStateException if the next token is neither a number nor a string.

```APIDOC
## nextInt
public int nextInt() throws IOException

Returns the `int` value of the next token, consuming it. If the next token is a string, this method will attempt to parse it as an int. If the next token's numeric value cannot be exactly represented by a Java `int`, this method throws.

Throws:
    IllegalStateException - if the next token is neither a number nor a string.
    NumberFormatException - if the next literal value cannot be parsed as a number, or exactly represented as an int.
    IOException
```

--------------------------------

### nextBoolean()

Source: https://www.javadoc.io/doc/com.google.code.gson/gson/latest/com.google.gson/com/google/gson/stream/JsonReader.html

Returns the boolean value of the next token, consuming it. Throws IllegalStateException if the next token is not a boolean.

```APIDOC
## nextBoolean
public boolean nextBoolean() throws IOException

Returns the `boolean` value of the next token, consuming it.

Throws:
    IllegalStateException - if the next token is not a boolean.
    IOException
```

--------------------------------

### getStrictness

Source: https://www.javadoc.io/doc/com.google.code.gson/gson/latest/com.google.gson/com/google/gson/stream/JsonReader.html

Returns the current strictness setting of the JSON reader.

```APIDOC
### getStrictness
public final Strictness getStrictness()
Returns the strictness of this reader. 
Since:
    2.11.0 
See Also:
    
      * `setStrictness(Strictness)`
```

--------------------------------

### Reading a JSON User Object

Source: https://www.javadoc.io/doc/com.google.code.gson/gson/latest/com.google.gson/com/google/gson/stream/JsonReader.html

Parses a JSON object representing a user, extracting username and follower count.

```java
public User readUser(JsonReader reader) throws IOException {
  String username = null;
  int followersCount = -1;

  reader.beginObject();
  while (reader.hasNext()) {
    String name = reader.nextName();
    if (name.equals("name")) {
      username = reader.nextString();
    } else if (name.equals("followers_count")) {
      followersCount = reader.nextInt();
    } else {
      reader.skipValue();
    }
  }
  reader.endObject();
  return new User(username, followersCount);
}
```

--------------------------------

### setNestingLimit

Source: https://www.javadoc.io/doc/com.google.code.gson/gson/latest/com.google.gson/com/google/gson/stream/JsonReader.html

Sets the maximum depth of nested JSON arrays or objects that the reader will accept, helping to prevent StackOverflowError.

```APIDOC
### setNestingLimit
public final void setNestingLimit(int limit)
Sets the nesting limit of this reader. 
The nesting limit defines how many JSON arrays or objects may be open at the same time. For example a nesting limit of 0 means no arrays or objects may be opened at all, a nesting limit of 1 means one array or object may be open at the same time, and so on. So a nesting limit of 3 allows reading the JSON data `[{"a":[true]}]`, but for a nesting limit of 2 it would fail at the inner `[true]`. 
The nesting limit can help to protect against a `StackOverflowError` when recursive `TypeAdapter` implementations process deeply nested JSON data. 
The default nesting limit is 255. 
Throws:
    `IllegalArgumentException` - if the nesting limit is negative. 
Since:
    2.12.0 
See Also:
    
      * `getNestingLimit()`
```

--------------------------------

### Skipping Values

Source: https://www.javadoc.io/doc/com.google.code.gson/gson/latest/com.google.gson/com/google/gson/stream/JsonReader.html

Provides a way to skip the next JSON value recursively.

```APIDOC
## skipValue()

### Description
Skips the next value recursively.

### Method
void
```

--------------------------------

### getPreviousPath()

Source: https://www.javadoc.io/doc/com.google.code.gson/gson/latest/com.google.gson/com/google/gson/stream/JsonReader.html

Returns a JSONPath in dot-notation to the previous (or current) location in the JSON document. This is useful for adding context to exceptions after a value has been consumed.

```APIDOC
## getPreviousPath()

### Description
Returns a JSONPath in _dot-notation_ to the previous (or current) location in the JSON document. That means: 
      * For JSON arrays the path points to the index of the previous element.  
If no element has been consumed yet it uses the index 0 (even if there are no elements). 
      * For JSON objects the path points to the last property, or to the current property if its name has already been consumed. 
This method can be useful to add additional context to exception messages _after_ a value has been consumed.

### Method
public String getPreviousPath()
```

--------------------------------

### close()

Source: https://www.javadoc.io/doc/com.google.code.gson/gson/latest/com.google.gson/com/google/gson/stream/JsonReader.html

Closes this JSON reader and the underlying Reader. Using the JSON reader after it has been closed will throw an IllegalStateException in most cases. Throws IOException.

```APIDOC
## close
public void close() throws IOException

Closes this JSON reader and the underlying `Reader`.
Using the JSON reader after it has been closed will throw an `IllegalStateException` in most cases.

Specified by:
    `close` in interface `AutoCloseable` 

Specified by:
    `close` in interface `Closeable` 

Throws:
    IOException
```

--------------------------------

### nextLong()

Source: https://www.javadoc.io/doc/com.google.code.gson/gson/latest/com.google.gson/com/google/gson/stream/JsonReader.html

Returns the long value of the next token, consuming it. If the next token is a string, this method will attempt to parse it as a long. If the next token's numeric value cannot be exactly represented by a Java long, this method throws. Throws IllegalStateException if the next token is neither a number nor a string.

```APIDOC
## nextLong
public long nextLong() throws IOException

Returns the `long` value of the next token, consuming it. If the next token is a string, this method will attempt to parse it as a long. If the next token's numeric value cannot be exactly represented by a Java `long`, this method throws.

Throws:
    IllegalStateException - if the next token is neither a number nor a string.
    NumberFormatException - if the next literal value cannot be parsed as a number, or exactly represented as a long.
    IOException
```

--------------------------------

### Value Reading

Source: https://www.javadoc.io/doc/com.google.code.gson/gson/latest/com.google.gson/com/google/gson/stream/JsonReader.html

Methods to read and consume various JSON value types from the stream.

```APIDOC
## nextBoolean()

### Description
Returns the `boolean` value of the next token, consuming it.

### Method
boolean
```

```APIDOC
## nextDouble()

### Description
Returns the `double` value of the next token, consuming it.

### Method
double
```

```APIDOC
## nextInt()

### Description
Returns the `int` value of the next token, consuming it.

### Method
int
```

```APIDOC
## nextLong()

### Description
Returns the `long` value of the next token, consuming it.

### Method
long
```

```APIDOC
## nextNull()

### Description
Consumes the next token from the JSON stream and asserts that it is a literal null.

### Method
void
```

```APIDOC
## nextString()

### Description
Returns the `string` value of the next token, consuming it.

### Method
String
```

--------------------------------

### JsonReader Number Handling

Source: https://www.javadoc.io/doc/com.google.code.gson/gson/latest/com.google.gson/com/google/gson/stream/JsonReader.html

JsonReader allows numeric values to be read as strings and vice-versa to prevent lossy conversions, especially for very large numbers.

```text
This reader permits numeric values to be read as strings and string values to be read as numbers. For example, both elements of the JSON array [1, "1"] may be read using either nextInt() or nextString(). This behavior is intended to prevent lossy numeric conversions: double is JavaScript's only numeric type and very large values like 9007199254740993 cannot be represented exactly on that platform. To minimize precision loss, extremely large values should be written and read as strings in JSON.
```

--------------------------------

### hasNext()

Source: https://www.javadoc.io/doc/com.google.code.gson/gson/latest/com.google.gson/com/google/gson/stream/JsonReader.html

Returns true if the current array or object has another element. Throws IOException.

```APIDOC
## hasNext
public boolean hasNext() throws IOException

Returns true if the current array or object has another element.

Throws:
    IOException
```

--------------------------------

### Reading a JSON Array of Messages

Source: https://www.javadoc.io/doc/com.google.code.gson/gson/latest/com.google.gson/com/google/gson/stream/JsonReader.html

Reads a JSON array and populates a list of Message objects. Use `beginArray()` and `endArray()` to delimit the array.

```java
public List<Message> readMessagesArray(JsonReader reader) throws IOException {
  List<Message> messages = new ArrayList<>();

  reader.beginArray();
  while (reader.hasNext()) {
    messages.add(readMessage(reader));
  }
  reader.endArray();
  return messages;
}
```

--------------------------------

### Parsing a JSON Stream with JsonReader

Source: https://www.javadoc.io/doc/com.google.code.gson/gson/latest/com.google.gson/com/google/gson/stream/JsonReader.html

Implement a parser for a JSON stream of messages. Ensure the reader is closed in a finally block.

```java
public List<Message> readJsonStream(InputStream in) throws IOException {
  JsonReader reader = new JsonReader(new InputStreamReader(in, "UTF-8"));
  try {
    return readMessagesArray(reader);
  } finally {
    reader.close();
  }
}
```

--------------------------------

### endObject()

Source: https://www.javadoc.io/doc/com.google.code.gson/gson/latest/com.google.gson/com/google/gson/stream/JsonReader.html

Consumes the next token from the JSON stream and asserts that it is the end of the current object. Throws IllegalStateException if the next token is not the end of an object.

```APIDOC
## endObject
public void endObject() throws IOException

Consumes the next token from the JSON stream and asserts that it is the end of the current object.

Throws:
    IllegalStateException - if the next token is not the end of an object.
    IOException
```

--------------------------------

### endArray()

Source: https://www.javadoc.io/doc/com.google.code.gson/gson/latest/com.google.gson/com/google/gson/stream/JsonReader.html

Consumes the next token from the JSON stream and asserts that it is the end of the current array. Throws IllegalStateException if the next token is not the end of an array.

```APIDOC
## endArray
public void endArray() throws IOException

Consumes the next token from the JSON stream and asserts that it is the end of the current array.

Throws:
    IllegalStateException - if the next token is not the end of an array.
    IOException
```

--------------------------------

### setLenient (Deprecated)

Source: https://www.javadoc.io/doc/com.google.code.gson/gson/latest/com.google.gson/com/google/gson/stream/JsonReader.html

Deprecated method to set the leniency of the JSON reader. Use `setStrictness(Strictness)` instead.

```APIDOC
### setLenient
@Deprecated public final void setLenient(boolean lenient)
Deprecated.
Please use `setStrictness(Strictness)` instead. `      JsonReader.setLenient(true)` should be replaced by `      JsonReader.setStrictness(Strictness.LENIENT)` and `JsonReader.setLenient(false)` should be replaced by `JsonReader.setStrictness(Strictness.LEGACY_STRICT)`.  
However, if you used `setLenient(false)` before, you might prefer `Strictness.STRICT` now instead.
Sets the strictness of this reader. 
Parameters:
    `lenient` - whether this reader should be lenient. If true, the strictness is set to `Strictness.LENIENT`. If false, the strictness is set to `Strictness.LEGACY_STRICT`. 
See Also:
    
      * `setStrictness(Strictness)`
```

--------------------------------

### isLenient

Source: https://www.javadoc.io/doc/com.google.code.gson/gson/latest/com.google.gson/com/google/gson/stream/JsonReader.html

Checks if the current strictness of the reader is `Strictness.LENIENT`.

```APIDOC
### isLenient
public final boolean isLenient()
Returns true if the `Strictness` of this reader is equal to `Strictness.LENIENT`. 
See Also:
    
      * `getStrictness()`
```

--------------------------------

### setStrictness

Source: https://www.javadoc.io/doc/com.google.code.gson/gson/latest/com.google.gson/com/google/gson/stream/JsonReader.html

Configures how liberal the JSON parser is in what it accepts, allowing for different levels of strictness according to RFC 8259.

```APIDOC
### setStrictness
public final void setStrictness(Strictness strictness)
Configures how liberal this parser is in what it accepts. 
In strict mode, the parser only accepts JSON in accordance with RFC 8259. In legacy strict mode (the default), only JSON in accordance with the RFC 8259 is accepted, with a few exceptions denoted below for backwards compatibility reasons. In lenient mode, all sort of non-spec compliant JSON is accepted (see below).  
`Strictness.STRICT` 
    In strict mode, only input compliant with RFC 8259 is accepted. 
`Strictness.LEGACY_STRICT` 
    In legacy strict mode, the following departures from RFC 8259 are accepted: 
      * JsonReader allows the literals `true`, `false` and `null` to have any capitalization, for example `fAlSe` or `NULL`
      * JsonReader supports the escape sequence `'`, representing a `'` (single-quote) 
      * JsonReader supports the escape sequence `_LF_`(with`LF` being the Unicode character `U+000A`), resulting in a `LF` within the read JSON string 
      * JsonReader allows unescaped control characters (`U+0000` through `              U+001F`)  
`Strictness.LENIENT` 
    In lenient mode, all input that is accepted in legacy strict mode is accepted in addition to the following departures from RFC 8259: 
      * Streams that start with the non-execute prefix, `")]`' "} 
      * Streams that include multiple top-level values. With legacy strict or strict parsing, each stream must contain exactly one top-level value. 
      * Numbers may be `NaNs` or `infinities` represented by `NaN` and `(-)Infinity` respectively. 
      * End of line comments starting with `//` or `#` and ending with a newline character. 
      * C-style comments starting with `/*` and ending with `*``/`. Such comments may not be nested. 
      * Names that are unquoted or `'single quoted'`. 
      * Strings that are unquoted or `'single quoted'`. 
      * Array elements separated by `;` instead of `,`. 
      * Unnecessary array separators. These are interpreted as if null was the omitted value. 
      * Names and values separated by `=` or `=>` instead of `:`. 
      * Name/value pairs separated by `;` instead of `,`.  
Parameters:
    `strictness` - the new strictness value of this reader. May not be `null`. 
Since:
    2.11.0 
See Also:
    
      * `getStrictness()`
```

--------------------------------

### Reading a JSON Array of Doubles

Source: https://www.javadoc.io/doc/com.google.code.gson/gson/latest/com.google.gson/com/google/gson/stream/JsonReader.html

Parses a JSON array containing double-precision floating-point numbers.

```java
public List<Double> readDoublesArray(JsonReader reader) throws IOException {
  List<Double> doubles = new ArrayList<>();

  reader.beginArray();
  while (reader.hasNext()) {
    doubles.add(reader.nextDouble());
  }
  reader.endArray();
  return doubles;
}
```

--------------------------------

### Closing the Reader

Source: https://www.javadoc.io/doc/com.google.code.gson/gson/latest/com.google.gson/com/google/gson/stream/JsonReader.html

Method to close the JsonReader and release associated resources.

```APIDOC
## close()

### Description
Closes this JSON reader and the underlying `Reader`.

### Method
void
```

--------------------------------

### Reading a Single JSON Message Object

Source: https://www.javadoc.io/doc/com.google.code.gson/gson/latest/com.google.gson/com/google/gson/stream/JsonReader.html

Parses a single JSON object representing a message. Handles nested objects and arrays, skipping unknown fields.

```java
public Message readMessage(JsonReader reader) throws IOException {
  long id = -1;
  String text = null;
  User user = null;
  List<Double> geo = null;

  reader.beginObject();
  while (reader.hasNext()) {
    String name = reader.nextName();
    if (name.equals("id")) {
      id = reader.nextLong();
    } else if (name.equals("text")) {
      text = reader.nextString();
    } else if (name.equals("geo") && reader.peek() != JsonToken.NULL) {
      geo = readDoublesArray(reader);
    } else if (name.equals("user")) {
      user = readUser(reader);
    } else {
      reader.skipValue();
    }
  }
  reader.endObject();
  return new Message(id, text, user, geo);
}
```
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