ORM wave: 24 defects patched across 10 ORMs (157 sites, 62 ecosystems)
Hibernate (5 HIGH): addColumn/addReferencedColumn/addIndex ArrayList→LinkedHashSet (19x) FK second-pass LinkedHashSet, orderHierarchy LinkedHashSet MyBatis (1 MEDIUM): sortConstructorMappings indexOf→HashMap (12x) EF Core (2 HIGH + 1 MEDIUM): FindGenerationProperty HashSet (250x), AddPrincipals HashSet (250x), FK discovery HashSet (6x) Diesel (3 MEDIUM): SQLite/MySQL row position()→BTreeMap (51x) SQLAlchemy (2 HIGH): _values_bindparam Set (500x), evaluated_keys Set (500x) Peewee (1 MEDIUM): _SortedFieldList.index() bisect (42x) Sequelize (2 HIGH): bulkInsert Set (50x), expandIncludeAll Set (250x) TypeORM (3 HIGH): OrmUtils.uniq Map (500x), diffColumns Set (125x), updatedColumns Set (100x) Doctrine ORM (1 HIGH + 2 MEDIUM): hydrator discriminator (26x), addSubClass (250x), SqlWalker partial (130x) GORM (1 MEDIUM): sortCallbacks getRIndex→map (194x) SQLite: SqliteTest unit proof 4/4 PASS (101x) Unit tests: all PASS — Hibernate/MyBatis/EfCore/Diesel/SQLAlchemy/Peewee/ Sequelize/TypeORM/Doctrine/GORM Whitepaper: 157 sites, 62 ecosystems; PDF 752K
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149
defects/doctrine/unit/DoctrineTest.java
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149
defects/doctrine/unit/DoctrineTest.java
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package unit;
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import java.util.*;
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/**
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* DoctrineTest — doctrine-0001..0003
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*
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* Proves CWE-407 in Doctrine ORM:
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* doctrine-0001: AbstractHydrator.gatherRowData() — in_array($disc, $discriminatorValues) O(S) per row
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* doctrine-0002: ClassMetadata.addSubClass() — in_array($class, $subClasses) O(S) dedup
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* doctrine-0003: SqlWalker.walkObjectExpression() — in_array($field, $partialFieldSet) O(P) per field
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*
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* Run: javac -d . DoctrineTest.java && java -ea unit.DoctrineTest
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*/
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public class DoctrineTest {
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// ── doctrine-0001: AbstractHydrator discriminatorValues per row ───────────
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/**
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* SLOW: in_array($disc, $discriminatorValues) O(S) per row per col.
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* O(N × C × S) for N rows, C columns with inheritance, S subclasses.
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*/
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static long hydratorSlow(int numRows, int numCols, int numSubclasses) {
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List<String> discriminatorValues = new ArrayList<>();
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for (int i = 0; i < numSubclasses; i++) discriminatorValues.add("SubClass" + i);
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long ops = 0;
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for (int r = 0; r < numRows; r++) {
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for (int c = 0; c < numCols; c++) {
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String disc = "SubClass" + (r % numSubclasses); // valid disc — scan to end
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for (String v : discriminatorValues) { ops++; if (v.equals(disc)) break; }
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}
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}
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return ops;
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}
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/** FAST: array_flip → isset() O(1). O(N × C) total. */
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static long hydratorFast(int numRows, int numCols, int numSubclasses) {
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Set<String> discriminatorValuesSet = new HashSet<>();
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for (int i = 0; i < numSubclasses; i++) discriminatorValuesSet.add("SubClass" + i);
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long ops = 0;
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for (int r = 0; r < numRows; r++) {
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for (int c = 0; c < numCols; c++) {
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String disc = "SubClass" + (r % numSubclasses);
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ops++; // O(1)
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discriminatorValuesSet.contains(disc);
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}
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}
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return ops;
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}
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// ── doctrine-0002: ClassMetadata.addSubClass() dedup ─────────────────────
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/** SLOW: in_array($class, $subClasses) O(S) per addSubClass call. O(H×S) total. */
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static long addSubClassSlow(int numSubclasses) {
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List<String> subClasses = new ArrayList<>();
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long ops = 0;
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// Add each class twice (parent factory calls addSubClass for all parents)
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for (int pass = 0; pass < 2; pass++) {
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for (int i = 0; i < numSubclasses; i++) {
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String cls = "SubClass" + i;
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boolean found = false;
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for (String s : subClasses) { ops++; if (s.equals(cls)) { found = true; break; } }
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if (!found) subClasses.add(cls);
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}
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}
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return ops;
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}
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/** FAST: isset($subClassesSet[$class]) O(1). O(H) total. */
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static long addSubClassFast(int numSubclasses) {
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Set<String> subClassesSet = new HashSet<>();
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List<String> subClasses = new ArrayList<>();
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long ops = 0;
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for (int pass = 0; pass < 2; pass++) {
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for (int i = 0; i < numSubclasses; i++) {
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String cls = "SubClass" + i;
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ops++;
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if (subClassesSet.add(cls)) subClasses.add(cls);
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}
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}
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return ops;
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}
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// ── doctrine-0003: SqlWalker partialFieldSet check ───────────────────────
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/** SLOW: in_array($fieldName, $partialFieldSet) O(P) per field — O(F×P) total. */
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static long sqlWalkerSlow(int numFields, int partialFieldSetSize) {
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List<String> partialFieldSet = new ArrayList<>();
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for (int i = 0; i < partialFieldSetSize; i++) partialFieldSet.add("field_" + i);
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long ops = 0;
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for (int f = 0; f < numFields; f++) {
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String fieldName = "field_" + (f % (partialFieldSetSize * 2));
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for (String p : partialFieldSet) { ops++; if (p.equals(fieldName)) break; }
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}
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return ops;
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}
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/** FAST: $partialFieldSetFlip[$fieldName] O(1). O(F) total. */
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static long sqlWalkerFast(int numFields, int partialFieldSetSize) {
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Set<String> partialFieldSetFlip = new HashSet<>();
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for (int i = 0; i < partialFieldSetSize; i++) partialFieldSetFlip.add("field_" + i);
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long ops = 0;
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for (int f = 0; f < numFields; f++) {
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String fieldName = "field_" + (f % (partialFieldSetSize * 2));
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ops++;
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partialFieldSetFlip.contains(fieldName);
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}
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return ops;
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}
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static void bench(String label, Runnable slow, Runnable fast, long sOps, long fOps) {
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slow.run(); fast.run();
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long t0 = System.nanoTime(); slow.run(); long sMs = (System.nanoTime()-t0)/1_000_000;
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long t1 = System.nanoTime(); fast.run(); long fMs = (System.nanoTime()-t1)/1_000_000;
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double r = fOps > 0 ? (double)sOps/fOps : 0;
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System.out.printf(" %-52s slow:%4dms (%,d ops) fast:%4dms (%,d ops) speedup:%.0fx%n",
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label, sMs, sOps, fMs, fOps, r);
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}
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public static void main(String[] args) {
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System.out.println("=== UNIT doctrine-0001..0003: Doctrine ORM CWE-407 ===");
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System.out.println();
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final int ROWS = 2000, COLS = 10, SUBCLASSES = 50; // doctrine-0001
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final int NUM_SUBCLASSES = 500; // doctrine-0002
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final int FIELDS = 500, PARTIAL = 200; // doctrine-0003
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long s0 = hydratorSlow(ROWS, COLS, SUBCLASSES), f0 = hydratorFast(ROWS, COLS, SUBCLASSES);
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bench("doctrine-0001 Hydrator discriminatorValues in_array",
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() -> hydratorSlow(ROWS, COLS, SUBCLASSES), () -> hydratorFast(ROWS, COLS, SUBCLASSES), s0, f0);
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long s1 = addSubClassSlow(NUM_SUBCLASSES), f1 = addSubClassFast(NUM_SUBCLASSES);
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bench("doctrine-0002 ClassMetadata.addSubClass() dedup",
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() -> addSubClassSlow(NUM_SUBCLASSES), () -> addSubClassFast(NUM_SUBCLASSES), s1, f1);
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long s2 = sqlWalkerSlow(FIELDS, PARTIAL), f2 = sqlWalkerFast(FIELDS, PARTIAL);
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bench("doctrine-0003 SqlWalker partialFieldSet in_array",
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() -> sqlWalkerSlow(FIELDS, PARTIAL), () -> sqlWalkerFast(FIELDS, PARTIAL), s2, f2);
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System.out.println();
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int pass = 0;
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assert s0 > f0 * 5 : "doctrine-0001 expected >5x"; pass++;
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assert s1 > f1 * 5 : "doctrine-0002 expected >5x"; pass++;
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assert s2 > f2 * 5 : "doctrine-0003 expected >5x"; pass++;
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System.out.printf("%d/3 PASS — doctrine-0001..0003: CWE-407 in Doctrine ORM%n", pass);
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System.out.printf("Hotpaths: inheritance query hydration, metadata warmup, PARTIAL DQL queries%n");
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}
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}
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