TryCF Gist

trycf-gist-1766838090458-cc35c174-6626-76dc-a1d1-c66aa4fd3de7.cfm

<cfscript>
/**
 * BoxLang StructSort Comparison Contract Violation - Reproduction Case
 * 
 * This reproduces the error:
 * "Comparison method violates its general contract! java.lang.IllegalArgumentException"
 * 
 * Issue occurs when sorting a struct with nested structs containing timestamp fields
 * while simulating concurrent access patterns (like ColdBox cache operations).
 */

// Simulate ConcurrentStore pool structure
pool = {};

// Populate with cache entries (mimics CacheBoxProvider.set operations)
for ( i = 1; i <= 5000; i++ ) {
    pool[ "cache_key_#i#" ] = {
        object: "cached_value_#i#",
        hits: randRange( 0, 1000 ),
        timeout: "",  // Empty string like in real cache
        lastAccessTimeout: "",  // Empty string like in real cache
        created: now() - randRange( 0, 100 ),
        lastAccessed: now() - randRange( 0, 100 ),  // Very close timestamps
        isExpired: false
    };
}

writeDump( server.boxlang.buildDate );

// Simulate rapid concurrent access + sort (like LRU policy eviction)
for ( attempt = 1; attempt <= 50; attempt++ ) {
    try {
        for ( j = 1; j <= 100; j++ ) {
            randomKey = "cache_key_#randRange( 1, 5000 )#";
            if ( structKeyExists( pool, randomKey ) ) {
                pool[ randomKey ].hits++;
                pool[ randomKey ].lastAccessed = now();
            }
        }
        
        // This is where the error occurs - sorting during concurrent access
        sorted = structSort(
            pool,
            "numeric",
            "asc",
            "lastAccessed"
        );
        
        writeOutput( "Attempt #attempt#: OK (#arrayLen( sorted )# keys)<br>" );
    } catch ( any e ) {
        writeOutput( "<strong>Attempt #attempt#: ERROR</strong><br>" );
        writeOutput( "Message: #e.message#<br>" );
        writeOutput( "Type: #e.type#<br>" );
        writeDump( var = e, label = "Full Error" );
        break;
    }
}

</cfscript>