Data Types and Performance

/**
 * Base class for Truffle string implementations
 */
public abstract class AbstractTruffleString {
    
    /**
     * Get string length in code points
     * @param encoding String encoding
     * @return Length in code points
     */
    public abstract int codePointLengthUncached(Encoding encoding);
    
    /**
     * Get string length in bytes
     * @param encoding String encoding
     * @return Length in bytes
     */
    public abstract int byteLength(Encoding encoding);
    
    /**
     * Check if string is valid for encoding
     * @param encoding Target encoding
     * @return true if valid
     */
    public abstract boolean isValidUncached(Encoding encoding);
    
    /**
     * Switch to different encoding
     * @param encoding Target encoding
     * @return String in new encoding
     */
    public abstract TruffleString switchEncodingUncached(Encoding encoding);
}

/**
 * Immutable string implementation for Truffle languages
 */
public final class TruffleString extends AbstractTruffleString {
    
    /**
     * Create TruffleString from Java string
     * @param javaString Source Java string
     * @param encoding Target encoding
     * @return TruffleString instance
     */
    public static TruffleString fromJavaStringUncached(String javaString, Encoding encoding) {
        return null; // Implementation details
    }
    
    /**
     * Create TruffleString from byte array
     * @param bytes Source bytes
     * @param offset Byte offset
     * @param length Byte length
     * @param encoding Source encoding
     * @param copy Whether to copy bytes
     * @return TruffleString instance
     */
    public static TruffleString fromByteArrayUncached(byte[] bytes, int offset, int length, 
                                                     Encoding encoding, boolean copy) {
        return null; // Implementation details
    }
    
    /**
     * Create TruffleString from code point array
     * @param codePoints Source code points
     * @param offset Code point offset
     * @param length Code point length
     * @param encoding Target encoding
     * @param copy Whether to copy array
     * @return TruffleString instance
     */
    public static TruffleString fromCodePointArrayUncached(int[] codePoints, int offset, int length,
                                                          Encoding encoding, boolean copy) {
        return null; // Implementation details
    }
    
    /**
     * Convert to Java string
     * @return Java String
     */
    public String toJavaStringUncached() {
        return null; // Implementation details
    }
    
    /**
     * Get hash code for specific encoding
     * @param encoding String encoding
     * @return Hash code
     */
    public int hashCodeUncached(Encoding encoding) {
        return 0; // Implementation details
    }
    
    /**
     * Concatenate strings
     * @param other String to concatenate
     * @param encoding Result encoding
     * @param lazy Whether to use lazy concatenation
     * @return Concatenated string
     */
    public TruffleString concatUncached(TruffleString other, Encoding encoding, boolean lazy) {
        return null; // Implementation details
    }
    
    /**
     * Create substring
     * @param fromIndex Start index (code points)
     * @param length Substring length (code points)
     * @param encoding String encoding
     * @param lazy Whether to use lazy substring
     * @return Substring
     */
    public TruffleString substringUncached(int fromIndex, int length, Encoding encoding, boolean lazy) {
        return null; // Implementation details
    }
    
    /**
     * Compare strings
     * @param other String to compare
     * @param encoding Comparison encoding
     * @return Comparison result
     */
    public int compareToUncached(TruffleString other, Encoding encoding) {
        return 0; // Implementation details
    }
    
    /**
     * Check string equality
     * @param other String to compare
     * @param encoding Comparison encoding
     * @return true if equal
     */
    public boolean equalsUncached(TruffleString other, Encoding encoding) {
        return false; // Implementation details
    }
    
    /**
     * Find substring index
     * @param substring Substring to find
     * @param fromIndex Start search index
     * @param encoding Search encoding
     * @return Index of substring or -1
     */
    public int indexOfStringUncached(TruffleString substring, int fromIndex, Encoding encoding) {
        return -1; // Implementation details
    }
    
    /**
     * Find last substring index
     * @param substring Substring to find
     * @param fromIndex Start search index (backward)
     * @param encoding Search encoding
     * @return Last index of substring or -1
     */
    public int lastIndexOfStringUncached(TruffleString substring, int fromIndex, Encoding encoding) {
        return -1; // Implementation details
    }
    
    /**
     * Get code point at index
     * @param index Code point index
     * @param encoding String encoding
     * @return Code point value
     */
    public int codePointAtIndexUncached(int index, Encoding encoding) {
        return 0; // Implementation details
    }
    
    /**
     * Copy to byte array
     * @param srcIndex Source start index (code points)
     * @param dst Destination byte array
     * @param dstIndex Destination start index
     * @param length Copy length (code points)
     * @param encoding Source encoding
     */
    public void copyToByteArrayUncached(int srcIndex, byte[] dst, int dstIndex, int length, Encoding encoding) {
        // Implementation details
    }
}

/**
 * Mutable string implementation for building strings
 */
public final class MutableTruffleString extends AbstractTruffleString {
    
    /**
     * Create mutable string with capacity
     * @param encoding String encoding
     * @param capacity Initial capacity
     * @return MutableTruffleString instance
     */
    public static MutableTruffleString create(Encoding encoding, int capacity) {
        return null; // Implementation details
    }
    
    /**
     * Write code point at index
     * @param index Write index
     * @param codePoint Code point to write
     * @param encoding String encoding
     */
    public void writeCodePointUncached(int index, int codePoint, Encoding encoding) {
        // Implementation details
    }
    
    /**
     * Convert to immutable string
     * @param encoding String encoding
     * @return Immutable TruffleString
     */
    public TruffleString toImmutableUncached(Encoding encoding) {
        return null; // Implementation details
    }
}

/**
 * Builder for constructing strings efficiently
 */
public final class TruffleStringBuilder {
    
    /**
     * Create string builder
     * @param encoding Target encoding
     * @return Builder instance
     */
    public static TruffleStringBuilder create(Encoding encoding) {
        return null; // Implementation details
    }
    
    /**
     * Create string builder with capacity
     * @param encoding Target encoding
     * @param capacity Initial capacity
     * @return Builder instance
     */
    public static TruffleStringBuilder create(Encoding encoding, int capacity) {
        return null; // Implementation details
    }
    
    /**
     * Append string
     * @param string String to append
     * @return This builder
     */
    public TruffleStringBuilder appendStringUncached(TruffleString string) {
        return this; // Implementation details
    }
    
    /**
     * Append Java string
     * @param javaString Java string to append
     * @return This builder
     */
    public TruffleStringBuilder appendJavaStringUTF16Uncached(String javaString) {
        return this; // Implementation details
    }
    
    /**
     * Append code point
     * @param codePoint Code point to append
     * @return This builder
     */
    public TruffleStringBuilder appendCodePointUncached(int codePoint) {
        return this; // Implementation details
    }
    
    /**
     * Build final string
     * @return TruffleString instance
     */
    public TruffleString toStringUncached() {
        return null; // Implementation details
    }
    
    /**
     * Get current length
     * @return Length in code points
     */
    public int lengthUncached() {
        return 0; // Implementation details
    }
}

/**
 * Iterator for traversing strings
 */
public final class TruffleStringIterator {
    
    /**
     * Create iterator for string
     * @param string String to iterate
     * @param encoding String encoding
     * @return Iterator instance
     */
    public static TruffleStringIterator create(TruffleString string, Encoding encoding) {
        return null; // Implementation details
    }
    
    /**
     * Check if more code points available
     * @return true if has next
     */
    public boolean hasNext() {
        return false; // Implementation details
    }
    
    /**
     * Get next code point
     * @return Next code point
     */
    public int nextUncached() {
        return 0; // Implementation details
    }
    
    /**
     * Check if more code points available (backward)
     * @return true if has previous
     */
    public boolean hasPrevious() {
        return false; // Implementation details
    }
    
    /**
     * Get previous code point
     * @return Previous code point
     */
    public int previousUncached() {
        return 0; // Implementation details
    }
}

/**
 * Encoding definitions and utilities
 */
public final class Encodings {
    
    /**
     * UTF-8 encoding
     */
    public static final Encoding UTF_8 = null;
    
    /**
     * UTF-16 encoding
     */
    public static final Encoding UTF_16 = null;
    
    /**
     * UTF-32 encoding
     */
    public static final Encoding UTF_32 = null;
    
    /**
     * ISO-8859-1 (Latin-1) encoding
     */
    public static final Encoding ISO_8859_1 = null;
    
    /**
     * US-ASCII encoding
     */
    public static final Encoding US_ASCII = null;
    
    /**
     * Get encoding by name
     * @param name Encoding name
     * @return Encoding instance or null
     */
    public static Encoding getEncoding(String name) {
        return null; // Implementation details
    }
}

/**
 * String encoding descriptor
 */
public abstract class Encoding {
    
    /**
     * Get encoding name
     * @return Encoding name
     */
    public abstract String getName();
    
    /**
     * Get maximum bytes per code point
     * @return Maximum bytes per code point
     */
    public abstract int getMaxBytesPerCodePoint();
    
    /**
     * Check if encoding is fixed width
     * @return true if fixed width
     */
    public abstract boolean isFixedWidth();
}

/**
 * Base class for all performance profiles
 */
public abstract class Profile {
    
    /**
     * Disable profiling for this profile
     * @return Disabled profile instance
     */
    public abstract Profile disable();
    
    /**
     * Reset profile statistics
     */
    public abstract void reset();
    
    /**
     * Check if profile is generic (no optimization)
     * @return true if generic
     */
    public abstract boolean isGeneric();
    
    /**
     * Check if profile is uninitialized
     * @return true if uninitialized
     */
    public abstract boolean isUninitialized();
}

/**
 * Profile for value-based optimizations
 */
public abstract class ValueProfile extends Profile {
    
    /**
     * Profile value and return cached or new value
     * @param value Value to profile
     * @return Profiled value
     */
    public abstract <T> T profile(T value);
    
    /**
     * Create identity-based value profile
     * @return ValueProfile instance
     */
    public static ValueProfile createIdentityProfile() {
        return null; // Implementation details
    }
    
    /**
     * Create class-based value profile
     * @return ValueProfile instance
     */
    public static ValueProfile createClassProfile() {
        return null; // Implementation details
    }
    
    /**
     * Create equality-based value profile
     * @return ValueProfile instance
     */
    public static ValueProfile createEqualityProfile() {
        return null; // Implementation details
    }
    
    /**
     * Get cached value if available
     * @return Cached value or null
     */
    public abstract Object getCachedValue();
}

/**
 * Specialized value profile for primitive int values
 */
public abstract class IntValueProfile extends Profile {
    
    /**
     * Profile int value
     * @param value Value to profile
     * @return Profiled value
     */
    public abstract int profile(int value);
    
    /**
     * Create int value profile
     * @return IntValueProfile instance
     */
    public static IntValueProfile create() {
        return null; // Implementation details
    }
}

/**
 * Specialized value profile for primitive long values
 */
public abstract class LongValueProfile extends Profile {
    
    /**
     * Profile long value
     * @param value Value to profile
     * @return Profiled value
     */
    public abstract long profile(long value);
    
    /**
     * Create long value profile
     * @return LongValueProfile instance
     */
    public static LongValueProfile create() {
        return null; // Implementation details
    }
}

/**
 * Specialized value profile for primitive double values
 */
public abstract class DoubleValueProfile extends Profile {
    
    /**
     * Profile double value
     * @param value Value to profile
     * @return Profiled value
     */
    public abstract double profile(double value);
    
    /**
     * Create double value profile
     * @return DoubleValueProfile instance
     */
    public static DoubleValueProfile create() {
        return null; // Implementation details
    }
}

/**
 * Specialized value profile for primitive float values
 */
public abstract class FloatValueProfile extends Profile {
    
    /**
     * Profile float value
     * @param value Value to profile
     * @return Profiled value
     */
    public abstract float profile(float value);
    
    /**
     * Create float value profile  
     * @return FloatValueProfile instance
     */
    public static FloatValueProfile create() {
        return null; // Implementation details
    }
}

/**
 * Profile for branch conditions
 */
public abstract class ConditionProfile extends Profile {
    
    /**
     * Profile boolean condition
     * @param condition Condition to profile
     * @return Profiled condition
     */
    public abstract boolean profile(boolean condition);
    
    /**
     * Create binary condition profile (true/false)
     * @return ConditionProfile instance
     */
    public static ConditionProfile createBinaryProfile() {
        return null; // Implementation details
    }
    
    /**
     * Create counting condition profile
     * @return ConditionProfile instance
     */
    public static ConditionProfile createCountingProfile() {
        return null; // Implementation details
    }
    
    /**
     * Get true count
     * @return Number of true results
     */
    public abstract long getTrueCount();
    
    /**
     * Get false count
     * @return Number of false results
     */
    public abstract long getFalseCount();
}

/**
 * Profile for method execution frequency
 */
public abstract class BranchProfile extends Profile {
    
    /**
     * Enter this branch
     */
    public abstract void enter();
    
    /**
     * Check if branch was visited
     * @return true if visited
     */
    public abstract boolean wasVisited();
    
    /**
     * Create branch profile
     * @return BranchProfile instance
     */
    public static BranchProfile create() {
        return null; // Implementation details
    }
}

/**
 * Profile optimized for loop conditions
 */
public abstract class LoopConditionProfile extends Profile {
    
    /**
     * Profile loop condition
     * @param condition Loop condition
     * @return Profiled condition
     */
    public abstract boolean profile(boolean condition);
    
    /**
     * Inject loop condition profiling
     * @param condition Loop condition
     * @return Profiled condition
     */
    public abstract boolean inject(boolean condition);
    
    /**
     * Create loop condition profile
     * @return LoopConditionProfile instance
     */
    public static LoopConditionProfile create() {
        return null; // Implementation details
    }
}

/**
 * Base class for Truffle language exceptions
 */
public abstract class AbstractTruffleException extends RuntimeException implements TruffleObject {
    
    /**
     * Create exception without message
     */
    protected AbstractTruffleException() {
        super();
    }
    
    /**
     * Create exception with message
     * @param message Exception message
     */
    protected AbstractTruffleException(String message) {
        super(message);
    }
    
    /**
     * Create exception with message and cause
     * @param message Exception message
     * @param cause Exception cause
     */
    protected AbstractTruffleException(String message, Throwable cause) {
        super(message, cause);
    }
    
    /**
     * Create exception with cause
     * @param cause Exception cause
     */
    protected AbstractTruffleException(Throwable cause) {
        super(cause);
    }
    
    /**
     * Get stack trace element limit
     * @return Maximum stack trace elements
     */
    public final int getStackTraceElementLimit() {
        return 0; // Implementation details
    }
    
    /**
     * Check if exception is internal
     * @return true if internal
     */
    public boolean isInternalError() {
        return false;
    }
    
    /**
     * Get exception location
     * @return Node where exception occurred
     */
    public Node getLocation() {
        return null; // Implementation details
    }
    
    /**
     * Get exception type for interop
     * @return ExceptionType enum value
     */
    public ExceptionType getExceptionType() {
        return ExceptionType.RUNTIME_ERROR;
    }
    
    /**
     * Check if exception has source location
     * @return true if has location
     */
    public boolean hasSourceLocation() {
        return getLocation() != null;
    }
    
    /**
     * Get source location
     * @return SourceSection or null
     */
    public SourceSection getSourceLocation() {
        Node location = getLocation();
        return location != null ? location.getSourceSection() : null;
    }
}

/**
 * Default stack trace element implementation
 */
public final class DefaultStackTraceElementObject implements TruffleObject {
    
    /**
     * Create stack trace element
     * @param rootNode Root node for frame
     * @param sourceSection Source section
     * @return Stack trace element
     */
    public static DefaultStackTraceElementObject create(RootNode rootNode, SourceSection sourceSection) {
        return new DefaultStackTraceElementObject(rootNode, sourceSection);
    }
    
    private DefaultStackTraceElementObject(RootNode rootNode, SourceSection sourceSection) {
        // Implementation details
    }
    
    /**
     * Get root node
     * @return RootNode instance
     */
    public RootNode getRootNode() {
        return null; // Implementation details
    }
    
    /**
     * Get source section
     * @return SourceSection instance
     */
    public SourceSection getSourceSection() {
        return null; // Implementation details
    }
}

/**
 * Host stack trace element for host interop
 */
public final class HostStackTraceElementObject implements TruffleObject {
    
    /**
     * Create host stack trace element
     * @param element Java StackTraceElement
     * @return Host stack trace element
     */
    public static HostStackTraceElementObject create(StackTraceElement element) {
        return new HostStackTraceElementObject(element);
    }
    
    private HostStackTraceElementObject(StackTraceElement element) {
        // Implementation details
    }
    
    /**
     * Get Java stack trace element
     * @return StackTraceElement instance
     */
    public StackTraceElement getStackTraceElement() {
        return null; // Implementation details
    }
}

/**
 * Base class for dynamic objects in Truffle
 */
public abstract class DynamicObject implements TruffleObject {
    
    /**
     * Get object shape
     * @return Shape instance
     */
    public abstract Shape getShape();
    
    /**
     * Get property value
     * @param key Property key
     * @return Property value
     */
    public abstract Object get(Object key);
    
    /**
     * Get property value with default
     * @param key Property key
     * @param defaultValue Default value if not found
     * @return Property value or default
     */
    public abstract Object getOrDefault(Object key, Object defaultValue);
    
    /**
     * Set property value
     * @param key Property key
     * @param value Property value
     * @return true if successful
     */
    public abstract boolean set(Object key, Object value);
    
    /**
     * Check if property exists
     * @param key Property key
     * @return true if property exists
     */
    public abstract boolean containsKey(Object key);
    
    /**
     * Define property with attributes
     * @param key Property key
     * @param value Property value
     * @param flags Property flags
     * @return true if successful
     */
    public abstract boolean define(Object key, Object value, int flags);
    
    /**
     * Delete property
     * @param key Property key
     * @return true if successful
     */
    public abstract boolean delete(Object key);
    
    /**
     * Get property count
     * @return Number of properties
     */
    public abstract int size();
    
    /**
     * Check if object is empty
     * @return true if no properties
     */
    public abstract boolean isEmpty();
    
    /**
     * Copy object
     * @param newShape Target shape
     * @return Copied object
     */
    public abstract DynamicObject copy(Shape newShape);
}

/**
 * Library for operations on dynamic objects
 */
public abstract class DynamicObjectLibrary extends Library {
    
    /**
     * Get uncached library instance
     * @return Uncached library
     */
    public static DynamicObjectLibrary getUncached() {
        return null; // Implementation details
    }
    
    /**
     * Get property value
     * @param receiver Dynamic object
     * @param key Property key
     * @return Property value
     * @throws FinalLocationException if location is final
     */
    public abstract Object getOrDefault(DynamicObject receiver, Object key, Object defaultValue);
    
    /**
     * Set property value
     * @param receiver Dynamic object
     * @param key Property key
     * @param value Property value
     * @throws IncompatibleLocationException if incompatible
     * @throws FinalLocationException if location is final
     */
    public abstract void put(DynamicObject receiver, Object key, Object value);
    
    /**
     * Set property value with flags
     * @param receiver Dynamic object
     * @param key Property key
     * @param value Property value
     * @param flags Property flags
     * @throws IncompatibleLocationException if incompatible
     * @throws FinalLocationException if location is final
     */
    public abstract void putWithFlags(DynamicObject receiver, Object key, Object value, int flags);
    
    /**
     * Check if property exists
     * @param receiver Dynamic object
     * @param key Property key
     * @return true if property exists
     */
    public abstract boolean containsKey(DynamicObject receiver, Object key);
    
    /**
     * Get property or null
     * @param receiver Dynamic object
     * @param key Property key
     * @return Property value or null
     */
    public abstract Object getOrDefault(DynamicObject receiver, Object key, Object defaultValue);
    
    /**
     * Remove property
     * @param receiver Dynamic object
     * @param key Property key
     * @return true if removed
     */
    public abstract boolean removeKey(DynamicObject receiver, Object key);
    
    /**
     * Get property keys
     * @param receiver Dynamic object
     * @return Array of property keys
     */
    public abstract Object[] getKeyArray(DynamicObject receiver);
    
    /**
     * Get property count
     * @param receiver Dynamic object
     * @return Number of properties
     */
    public abstract int getShapeFlags(DynamicObject receiver);
    
    /**
     * Mark object as shared
     * @param receiver Dynamic object
     * @return Shared object
     */
    public abstract DynamicObject markShared(DynamicObject receiver);
    
    /**
     * Check if object is shared
     * @param receiver Dynamic object
     * @return true if shared
     */
    public abstract boolean isShared(DynamicObject receiver);
    
    /**
     * Reset shape
     * @param receiver Dynamic object
     * @param otherShape New shape
     * @return Object with new shape
     */
    public abstract DynamicObject resetShape(DynamicObject receiver, Shape otherShape);
}

/**
 * Object layout descriptor
 */
public abstract class Shape {
    
    /**
     * Get property by key
     * @param key Property key
     * @return Property instance or null
     */
    public abstract Property getProperty(Object key);
    
    /**
     * Get last property in chain
     * @return Property instance
     */
    public abstract Property getLastProperty();
    
    /**
     * Get property list
     * @return List of properties
     */
    public abstract List<Property> getPropertyList();
    
    /**
     * Get property list filtered by predicate
     * @param filter Property filter
     * @return Filtered property list
     */
    public abstract List<Property> getPropertyList(Predicate<Property> filter);
    
    /**
     * Get all property keys
     * @return List of property keys
     */
    public abstract List<Object> getKeys();
    
    /**
     * Get property keys filtered by predicate
     * @param filter Property filter
     * @return Filtered property keys
     */
    public abstract List<Object> getKeys(Predicate<Property> filter);
    
    /**
     * Get property count
     * @return Number of properties
     */
    public abstract int getPropertyCount();
    
    /**
     * Check if shape has property
     * @param key Property key
     * @return true if has property
     */
    public abstract boolean hasProperty(Object key);
    
    /**
     * Create new instance with this shape
     * @return New DynamicObject
     */
    public abstract DynamicObject newInstance();
    
    /**
     * Create child shape with additional property
     * @param key Property key
     * @param location Property location
     * @param flags Property flags
     * @return Child shape
     */
    public abstract Shape defineProperty(Object key, Object value, int flags);
    
    /**
     * Get shared version of shape
     * @return Shared shape
     */
    public abstract Shape makeSharedShape();
    
    /**
     * Check if shape is shared
     * @return true if shared
     */
    public abstract boolean isShared();
    
    /**
     * Check if shape is valid
     * @return true if valid
     */
    public abstract boolean isValid();
}

/**
 * Three-valued logic enumeration
 */
public enum TriState {
    TRUE, FALSE, UNDEFINED;
    
    /**
     * Convert to boolean with default
     * @param defaultValue Default value for UNDEFINED
     * @return boolean value
     */
    public boolean toBoolean(boolean defaultValue) {
        switch (this) {
            case TRUE: return true;
            case FALSE: return false;
            default: return defaultValue;
        }
    }
    
    /**
     * Create from boolean
     * @param value boolean value
     * @return TriState value
     */
    public static TriState valueOf(boolean value) {
        return value ? TRUE : FALSE;
    }
}

/**
 * Immutable bit set implementation
 */
public final class FinalBitSet implements Cloneable {
    
    /**
     * Create empty bit set
     * @return Empty FinalBitSet
     */
    public static FinalBitSet create() {
        return new FinalBitSet();
    }
    
    /**
     * Create bit set from long
     * @param value Long value
     * @return FinalBitSet instance
     */
    public static FinalBitSet create(long value) {
        return new FinalBitSet(value);
    }
    
    /**
     * Check if bit is set
     * @param bitIndex Bit index
     * @return true if set
     */
    public boolean get(int bitIndex) {
        return false; // Implementation details
    }
    
    /**
     * Set bit and return new bit set
     * @param bitIndex Bit index
     * @return New FinalBitSet with bit set
     */
    public FinalBitSet set(int bitIndex) {
        return this; // Implementation details
    }
    
    /**
     * Clear bit and return new bit set
     * @param bitIndex Bit index
     * @return New FinalBitSet with bit cleared
     */
    public FinalBitSet clear(int bitIndex) {
        return this; // Implementation details
    }
    
    /**
     * Get bit count
     * @return Number of set bits
     */
    public int cardinality() {
        return 0; // Implementation details
    }
    
    /**
     * Check if empty
     * @return true if no bits set
     */
    public boolean isEmpty() {
        return false; // Implementation details
    }
}

/**
 * Weak reference implementation for Truffle
 */
public final class TruffleWeakReference<T> {
    
    /**
     * Create weak reference
     * @param referent Target object
     * @return Weak reference
     */
    public static <T> TruffleWeakReference<T> create(T referent) {
        return new TruffleWeakReference<>(referent);
    }
    
    private TruffleWeakReference(T referent) {
        // Implementation details
    }
    
    /**
     * Get referenced object
     * @return Referenced object or null
     */
    public T get() {
        return null; // Implementation details
    }
    
    /**
     * Clear reference
     */
    public void clear() {
        // Implementation details
    }
}

/**
 * JSON helper utilities
 */
public final class JSONHelper {
    
    /**
     * Parse JSON string
     * @param jsonString JSON string
     * @return Parsed object
     */
    public static Object parseJSON(String jsonString) {
        return null; // Implementation details
    }
    
    /**
     * Convert object to JSON string
     * @param object Object to convert
     * @return JSON string
     */
    public static String toJSONString(Object object) {
        return null; // Implementation details
    }
}