Jackson is "the Java JSON library" or "the best JSON parser for Java". Or simply as "JSON for Java".

Jackson Databind Source Code files are provided in the source packge (jackson-databind-2.14.0-sources.jar). You can download it at Jackson Maven Website.

You can also browse Jackson Databind Source Code below:

⏎ com/fasterxml/jackson/databind/exc/MismatchedInputException.java

package com.fasterxml.jackson.databind.exc;

import com.fasterxml.jackson.core.JsonLocation;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.databind.JavaType;
import com.fasterxml.jackson.databind.JsonMappingException;
import com.fasterxml.jackson.databind.util.ClassUtil;

/**
 * General exception type used as the base class for all {@link JsonMappingException}s
 * that are due to input not mapping to target definition; these are typically
 * considered "client errors" since target type definition itself is not the root cause
 * but mismatching input. This is in contrast to {@link InvalidDefinitionException} which
 * signals a problem with target type definition and not input.
 *<p>
 * This type is used as-is for some input problems, but in most cases there should be
 * more explicit subtypes to use.
 *<p>
 * NOTE: name chosen to differ from `java.util.InputMismatchException` since while that
 * would have been better name, use of same overlapping name causes nasty issues
 * with IDE auto-completion, so slightly less optimal chosen.
 *
 * @since 2.9
 */
@SuppressWarnings("serial")
public class MismatchedInputException
    extends JsonMappingException
{
    /**
     * Type of value that was to be deserialized
     */
    protected Class<?> _targetType;

    protected MismatchedInputException(JsonParser p, String msg) {
        this(p, msg, (JavaType) null);
    }

    protected MismatchedInputException(JsonParser p, String msg, JsonLocation loc) {
        super(p, msg, loc);
    }

    protected MismatchedInputException(JsonParser p, String msg, Class<?> targetType) {
        super(p, msg);
        _targetType = targetType;
    }

    protected MismatchedInputException(JsonParser p, String msg, JavaType targetType) {
        super(p, msg);
        _targetType = ClassUtil.rawClass(targetType);
    }

    // Only to prevent super-class static method from getting called
    @Deprecated // as of 2.9
    public static MismatchedInputException from(JsonParser p, String msg) {
        return from(p, (Class<?>) null, msg);
    }

    public static MismatchedInputException from(JsonParser p, JavaType targetType, String msg) {
        return new MismatchedInputException(p, msg, targetType);
    }

    public static MismatchedInputException from(JsonParser p, Class<?> targetType, String msg) {
        return new MismatchedInputException(p, msg, targetType);
    }

    public MismatchedInputException setTargetType(JavaType t) {
        _targetType = t.getRawClass();
        return this;
    }

    /**
     * Accessor for getting intended target type, with which input did not match,
     * if known; `null` if not known for some reason.
     */
    public Class<?> getTargetType() {
        return _targetType;
    }
}

⏎ com/fasterxml/jackson/databind/exc/MismatchedInputException.java

Or download all of them as a single archive file:

File name: jackson-databind-2.14.0-sources.jar
File size: 1187952 bytes
Release date: 2022-11-05
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