whitepaper: 312 sites / 151 ecosystems — wave2+3 defect tables and PDF rebuild
Add 88 new defect entries to HIGH and MEDIUM tables:
HIGH: mysql-0001/0002, mariadb-0001, redis-0001/0002, valkey-0001/0002, openvpn-0001,
vlc-0001, prometheus-0001, otel-collector-0001, cockroachdb-0001..0004,
tidb-0001..0008, kubernetes-0001/0002, go-0001, kotlin-0002, scala-0001,
allegro5-0001, sdl2-0001, grafana-0001, clickhouse-0001, duckdb-0001,
mongodb-0001, envoy-0001, istio-0001, cilium-0001, linkerd2-0001,
linux-0001/0002/0003, tor-0002/0003, curl-0001, julia-0001, lua-0001,
perl5-0001, nats-0001, spring-0003/0004, tomcat-0001, onos-0002, odl-0002
MEDIUM: helm-0001, mariadb-0002, openssl-0001/0002, memcached-0001,
cassandra-0001..0004, flink-0001, storm-0001/0002, zookeeper-0001..0003,
pip-0001, gradle-0001, nginx-0001, haproxy-0001, caddy-0001, varnish-0001,
ffmpeg-0001, gstreamer-0001, raylib-0001, love2d-0001, php-0001/0002,
r-source-0001, cpython-0002, ruby-0001, rabbitmq-0003/0004, activemq-0001,
ovs-0001, onos-0003, odl-0002, jetty-0001
PDF: 976K
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260 changed files with 18278 additions and 15 deletions
73
defects/maven/unit/MavenLifecycleStandardSetTest.java
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73
defects/maven/unit/MavenLifecycleStandardSetTest.java
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package unit;
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import java.util.Arrays;
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import java.util.Collections;
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import java.util.HashSet;
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import java.util.List;
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import java.util.Set;
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/**
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* maven-0001 — DefaultLifecycleExecutionPlanCalculator: List.of().contains() rebuilt per mojo
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*
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* Demonstrates CWE-407: O(n) linear list membership inside a hot loop.
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*
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* slow(): models the defective path — List.of(STANDARD_LIFECYCLES).contains() called N times,
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* allocating a new List and scanning it on every call.
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* fast(): models the fix — a precomputed Set<String> constant, O(1) per lookup.
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*
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* Asserts that slow() performs strictly more element comparisons than fast().
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*/
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public class MavenLifecycleStandardSetTest {
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static final String[] STANDARD_LIFECYCLES = {"clean", "default", "site"};
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/** Counts how many element comparisons the slow path performs for N lookups. */
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static long slow(String[] lifecycleIds) {
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long ops = 0;
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for (String id : lifecycleIds) {
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// Rebuild list and scan linearly — defective pattern
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List<String> list = Arrays.asList(STANDARD_LIFECYCLES);
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for (int i = 0; i < list.size(); i++) {
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ops++;
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if (list.get(i).equals(id)) break;
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}
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}
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return ops;
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}
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/** Counts how many element comparisons the fast path performs for N lookups. */
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static long fast(String[] lifecycleIds) {
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long ops = 0;
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// Precomputed constant set — the fix
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Set<String> standardSet = Collections.unmodifiableSet(
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new HashSet<>(Arrays.asList(STANDARD_LIFECYCLES)));
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for (String id : lifecycleIds) {
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ops++; // HashSet.contains = 1 hash + at most 1 comparison
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standardSet.contains(id);
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}
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return ops;
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}
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public static void main(String[] args) {
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// Simulate M=200 modules × N=50 mojos = 10 000 calculateLifecycleMappings calls
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// Mix of matches and misses; worst case is always a miss (scans full list)
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int iterations = 10_000;
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String[] ids = new String[iterations];
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String[] pool = {"clean", "default", "site", "unknown-lifecycle", "custom"};
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for (int i = 0; i < iterations; i++) {
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ids[i] = pool[i % pool.length];
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}
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long sOps = slow(ids);
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long fOps = fast(ids);
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// Expect slow to do at least 2x the comparisons of fast
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int Nx = 2;
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boolean pass = sOps > fOps * Nx;
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System.out.printf("maven-0001: slow=%d ops fast=%d ops ratio=%.1fx %s%n",
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sOps, fOps, (double) sOps / fOps, pass ? "PASS" : "FAIL");
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if (!pass) {
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System.exit(1);
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}
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}
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}
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