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Posted to site-commits@maven.apache.org by cs...@apache.org on 2024/10/29 09:47:06 UTC
svn commit: r1921641 [9/41] - in /maven/website/components/resolver-archives/resolver-LATEST: ./ apidocs/ apidocs/org/eclipse/aether/collection/class-use/ apidocs/org/eclipse/aether/graph/class-use/ apidocs/org/eclipse/aether/scope/class-use/ apidocs/o...
Modified: maven/website/components/resolver-archives/resolver-LATEST/apidocs/src-html/org/eclipse/aether/util/graph/manager/AbstractDependencyManager.html
==============================================================================
--- maven/website/components/resolver-archives/resolver-LATEST/apidocs/src-html/org/eclipse/aether/util/graph/manager/AbstractDependencyManager.html (original)
+++ maven/website/components/resolver-archives/resolver-LATEST/apidocs/src-html/org/eclipse/aether/util/graph/manager/AbstractDependencyManager.html Tue Oct 29 09:47:01 2024
@@ -31,327 +31,368 @@
<span class="source-line-no">018</span><span id="line-18"> */</span>
<span class="source-line-no">019</span><span id="line-19">package org.eclipse.aether.util.graph.manager;</span>
<span class="source-line-no">020</span><span id="line-20"></span>
-<span class="source-line-no">021</span><span id="line-21">import java.util.Collection;</span>
-<span class="source-line-no">022</span><span id="line-22">import java.util.Collections;</span>
-<span class="source-line-no">023</span><span id="line-23">import java.util.HashMap;</span>
-<span class="source-line-no">024</span><span id="line-24">import java.util.LinkedHashSet;</span>
-<span class="source-line-no">025</span><span id="line-25">import java.util.Map;</span>
-<span class="source-line-no">026</span><span id="line-26">import java.util.Objects;</span>
-<span class="source-line-no">027</span><span id="line-27"></span>
-<span class="source-line-no">028</span><span id="line-28">import org.eclipse.aether.artifact.Artifact;</span>
-<span class="source-line-no">029</span><span id="line-29">import org.eclipse.aether.collection.DependencyCollectionContext;</span>
-<span class="source-line-no">030</span><span id="line-30">import org.eclipse.aether.collection.DependencyManagement;</span>
-<span class="source-line-no">031</span><span id="line-31">import org.eclipse.aether.collection.DependencyManager;</span>
-<span class="source-line-no">032</span><span id="line-32">import org.eclipse.aether.graph.Dependency;</span>
-<span class="source-line-no">033</span><span id="line-33">import org.eclipse.aether.graph.Exclusion;</span>
-<span class="source-line-no">034</span><span id="line-34">import org.eclipse.aether.scope.ScopeManager;</span>
-<span class="source-line-no">035</span><span id="line-35">import org.eclipse.aether.scope.SystemDependencyScope;</span>
-<span class="source-line-no">036</span><span id="line-36"></span>
-<span class="source-line-no">037</span><span id="line-37">import static java.util.Objects.requireNonNull;</span>
-<span class="source-line-no">038</span><span id="line-38"></span>
-<span class="source-line-no">039</span><span id="line-39">/**</span>
-<span class="source-line-no">040</span><span id="line-40"> * A dependency manager support class.</span>
-<span class="source-line-no">041</span><span id="line-41"> *</span>
-<span class="source-line-no">042</span><span id="line-42"> * @since 2.0.0</span>
-<span class="source-line-no">043</span><span id="line-43"> */</span>
-<span class="source-line-no">044</span><span id="line-44">public abstract class AbstractDependencyManager implements DependencyManager {</span>
-<span class="source-line-no">045</span><span id="line-45"></span>
-<span class="source-line-no">046</span><span id="line-46"> protected final int depth;</span>
-<span class="source-line-no">047</span><span id="line-47"></span>
-<span class="source-line-no">048</span><span id="line-48"> protected final int deriveUntil;</span>
-<span class="source-line-no">049</span><span id="line-49"></span>
-<span class="source-line-no">050</span><span id="line-50"> protected final int applyFrom;</span>
-<span class="source-line-no">051</span><span id="line-51"></span>
-<span class="source-line-no">052</span><span id="line-52"> protected final Map<Object, String> managedVersions;</span>
-<span class="source-line-no">053</span><span id="line-53"></span>
-<span class="source-line-no">054</span><span id="line-54"> protected final Map<Object, String> managedScopes;</span>
-<span class="source-line-no">055</span><span id="line-55"></span>
-<span class="source-line-no">056</span><span id="line-56"> protected final Map<Object, Boolean> managedOptionals;</span>
-<span class="source-line-no">057</span><span id="line-57"></span>
-<span class="source-line-no">058</span><span id="line-58"> protected final Map<Object, String> managedLocalPaths;</span>
-<span class="source-line-no">059</span><span id="line-59"></span>
-<span class="source-line-no">060</span><span id="line-60"> protected final Map<Object, Collection<Exclusion>> managedExclusions;</span>
-<span class="source-line-no">061</span><span id="line-61"></span>
-<span class="source-line-no">062</span><span id="line-62"> protected final SystemDependencyScope systemDependencyScope;</span>
-<span class="source-line-no">063</span><span id="line-63"></span>
-<span class="source-line-no">064</span><span id="line-64"> protected final DependencyCollectionContext currentContext;</span>
-<span class="source-line-no">065</span><span id="line-65"></span>
-<span class="source-line-no">066</span><span id="line-66"> private final int hashCode;</span>
-<span class="source-line-no">067</span><span id="line-67"></span>
-<span class="source-line-no">068</span><span id="line-68"> protected AbstractDependencyManager(int deriveUntil, int applyFrom, ScopeManager scopeManager) {</span>
-<span class="source-line-no">069</span><span id="line-69"> this(</span>
-<span class="source-line-no">070</span><span id="line-70"> 0,</span>
-<span class="source-line-no">071</span><span id="line-71"> deriveUntil,</span>
-<span class="source-line-no">072</span><span id="line-72"> applyFrom,</span>
-<span class="source-line-no">073</span><span id="line-73"> Collections.emptyMap(),</span>
-<span class="source-line-no">074</span><span id="line-74"> Collections.emptyMap(),</span>
-<span class="source-line-no">075</span><span id="line-75"> Collections.emptyMap(),</span>
-<span class="source-line-no">076</span><span id="line-76"> Collections.emptyMap(),</span>
-<span class="source-line-no">077</span><span id="line-77"> Collections.emptyMap(),</span>
-<span class="source-line-no">078</span><span id="line-78"> scopeManager != null</span>
-<span class="source-line-no">079</span><span id="line-79"> ? scopeManager.getSystemDependencyScope().orElse(null)</span>
-<span class="source-line-no">080</span><span id="line-80"> : SystemDependencyScope.LEGACY,</span>
-<span class="source-line-no">081</span><span id="line-81"> null);</span>
-<span class="source-line-no">082</span><span id="line-82"> }</span>
-<span class="source-line-no">083</span><span id="line-83"></span>
-<span class="source-line-no">084</span><span id="line-84"> @SuppressWarnings("checkstyle:ParameterNumber")</span>
-<span class="source-line-no">085</span><span id="line-85"> protected AbstractDependencyManager(</span>
-<span class="source-line-no">086</span><span id="line-86"> int depth,</span>
-<span class="source-line-no">087</span><span id="line-87"> int deriveUntil,</span>
-<span class="source-line-no">088</span><span id="line-88"> int applyFrom,</span>
-<span class="source-line-no">089</span><span id="line-89"> Map<Object, String> managedVersions,</span>
-<span class="source-line-no">090</span><span id="line-90"> Map<Object, String> managedScopes,</span>
-<span class="source-line-no">091</span><span id="line-91"> Map<Object, Boolean> managedOptionals,</span>
-<span class="source-line-no">092</span><span id="line-92"> Map<Object, String> managedLocalPaths,</span>
-<span class="source-line-no">093</span><span id="line-93"> Map<Object, Collection<Exclusion>> managedExclusions,</span>
-<span class="source-line-no">094</span><span id="line-94"> SystemDependencyScope systemDependencyScope,</span>
-<span class="source-line-no">095</span><span id="line-95"> DependencyCollectionContext currentContext) {</span>
-<span class="source-line-no">096</span><span id="line-96"> this.depth = depth;</span>
-<span class="source-line-no">097</span><span id="line-97"> this.deriveUntil = deriveUntil;</span>
-<span class="source-line-no">098</span><span id="line-98"> this.applyFrom = applyFrom;</span>
-<span class="source-line-no">099</span><span id="line-99"> this.managedVersions = requireNonNull(managedVersions);</span>
-<span class="source-line-no">100</span><span id="line-100"> this.managedScopes = requireNonNull(managedScopes);</span>
-<span class="source-line-no">101</span><span id="line-101"> this.managedOptionals = requireNonNull(managedOptionals);</span>
-<span class="source-line-no">102</span><span id="line-102"> this.managedLocalPaths = requireNonNull(managedLocalPaths);</span>
-<span class="source-line-no">103</span><span id="line-103"> this.managedExclusions = requireNonNull(managedExclusions);</span>
-<span class="source-line-no">104</span><span id="line-104"> // nullable: if using scope manager, but there is no system scope defined</span>
-<span class="source-line-no">105</span><span id="line-105"> this.systemDependencyScope = systemDependencyScope;</span>
-<span class="source-line-no">106</span><span id="line-106"> // nullable until applicable, then "lock step" below</span>
-<span class="source-line-no">107</span><span id="line-107"> this.currentContext = currentContext;</span>
-<span class="source-line-no">108</span><span id="line-108"></span>
-<span class="source-line-no">109</span><span id="line-109"> this.hashCode = Objects.hash(</span>
-<span class="source-line-no">110</span><span id="line-110"> depth,</span>
-<span class="source-line-no">111</span><span id="line-111"> deriveUntil,</span>
-<span class="source-line-no">112</span><span id="line-112"> applyFrom,</span>
-<span class="source-line-no">113</span><span id="line-113"> managedVersions,</span>
-<span class="source-line-no">114</span><span id="line-114"> managedScopes,</span>
-<span class="source-line-no">115</span><span id="line-115"> managedOptionals,</span>
-<span class="source-line-no">116</span><span id="line-116"> managedLocalPaths,</span>
-<span class="source-line-no">117</span><span id="line-117"> managedExclusions);</span>
-<span class="source-line-no">118</span><span id="line-118"> }</span>
-<span class="source-line-no">119</span><span id="line-119"></span>
-<span class="source-line-no">120</span><span id="line-120"> protected abstract DependencyManager newInstance(</span>
-<span class="source-line-no">121</span><span id="line-121"> Map<Object, String> managedVersions,</span>
-<span class="source-line-no">122</span><span id="line-122"> Map<Object, String> managedScopes,</span>
-<span class="source-line-no">123</span><span id="line-123"> Map<Object, Boolean> managedOptionals,</span>
-<span class="source-line-no">124</span><span id="line-124"> Map<Object, String> managedLocalPaths,</span>
-<span class="source-line-no">125</span><span id="line-125"> Map<Object, Collection<Exclusion>> managedExclusions,</span>
-<span class="source-line-no">126</span><span id="line-126"> DependencyCollectionContext currentContext);</span>
-<span class="source-line-no">127</span><span id="line-127"></span>
-<span class="source-line-no">128</span><span id="line-128"> @Override</span>
-<span class="source-line-no">129</span><span id="line-129"> public DependencyManager deriveChildManager(DependencyCollectionContext context) {</span>
-<span class="source-line-no">130</span><span id="line-130"> requireNonNull(context, "context cannot be null");</span>
-<span class="source-line-no">131</span><span id="line-131"> if (!isDerived()) {</span>
-<span class="source-line-no">132</span><span id="line-132"> return this;</span>
-<span class="source-line-no">133</span><span id="line-133"> }</span>
-<span class="source-line-no">134</span><span id="line-134"></span>
-<span class="source-line-no">135</span><span id="line-135"> if (!isApplied() || currentContext == null) {</span>
-<span class="source-line-no">136</span><span id="line-136"> return derive(context, context); // original behaviour</span>
-<span class="source-line-no">137</span><span id="line-137"> } else {</span>
-<span class="source-line-no">138</span><span id="line-138"> return derive(currentContext, context); // clic-clac: defer application to children; not onto own deps</span>
-<span class="source-line-no">139</span><span id="line-139"> }</span>
-<span class="source-line-no">140</span><span id="line-140"> }</span>
-<span class="source-line-no">141</span><span id="line-141"></span>
-<span class="source-line-no">142</span><span id="line-142"> protected DependencyManager derive(</span>
-<span class="source-line-no">143</span><span id="line-143"> DependencyCollectionContext currentContext, DependencyCollectionContext nextContext) {</span>
-<span class="source-line-no">144</span><span id="line-144"> Map<Object, String> managedVersions = this.managedVersions;</span>
-<span class="source-line-no">145</span><span id="line-145"> Map<Object, String> managedScopes = this.managedScopes;</span>
-<span class="source-line-no">146</span><span id="line-146"> Map<Object, Boolean> managedOptionals = this.managedOptionals;</span>
-<span class="source-line-no">147</span><span id="line-147"> Map<Object, String> managedLocalPaths = this.managedLocalPaths;</span>
-<span class="source-line-no">148</span><span id="line-148"> Map<Object, Collection<Exclusion>> managedExclusions = this.managedExclusions;</span>
-<span class="source-line-no">149</span><span id="line-149"></span>
-<span class="source-line-no">150</span><span id="line-150"> for (Dependency managedDependency : currentContext.getManagedDependencies()) {</span>
-<span class="source-line-no">151</span><span id="line-151"> Artifact artifact = managedDependency.getArtifact();</span>
-<span class="source-line-no">152</span><span id="line-152"> Object key = new Key(artifact);</span>
-<span class="source-line-no">153</span><span id="line-153"></span>
-<span class="source-line-no">154</span><span id="line-154"> String version = artifact.getVersion();</span>
-<span class="source-line-no">155</span><span id="line-155"> if (!version.isEmpty() && !managedVersions.containsKey(key)) {</span>
-<span class="source-line-no">156</span><span id="line-156"> if (managedVersions == this.managedVersions) {</span>
-<span class="source-line-no">157</span><span id="line-157"> managedVersions = new HashMap<>(this.managedVersions);</span>
-<span class="source-line-no">158</span><span id="line-158"> }</span>
-<span class="source-line-no">159</span><span id="line-159"> managedVersions.put(key, version);</span>
-<span class="source-line-no">160</span><span id="line-160"> }</span>
-<span class="source-line-no">161</span><span id="line-161"></span>
-<span class="source-line-no">162</span><span id="line-162"> String scope = managedDependency.getScope();</span>
-<span class="source-line-no">163</span><span id="line-163"> if (!scope.isEmpty() && !managedScopes.containsKey(key)) {</span>
-<span class="source-line-no">164</span><span id="line-164"> if (managedScopes == this.managedScopes) {</span>
-<span class="source-line-no">165</span><span id="line-165"> managedScopes = new HashMap<>(this.managedScopes);</span>
-<span class="source-line-no">166</span><span id="line-166"> }</span>
-<span class="source-line-no">167</span><span id="line-167"> managedScopes.put(key, scope);</span>
-<span class="source-line-no">168</span><span id="line-168"> }</span>
-<span class="source-line-no">169</span><span id="line-169"></span>
-<span class="source-line-no">170</span><span id="line-170"> Boolean optional = managedDependency.getOptional();</span>
-<span class="source-line-no">171</span><span id="line-171"> if (optional != null && !managedOptionals.containsKey(key)) {</span>
-<span class="source-line-no">172</span><span id="line-172"> if (managedOptionals == this.managedOptionals) {</span>
-<span class="source-line-no">173</span><span id="line-173"> managedOptionals = new HashMap<>(this.managedOptionals);</span>
-<span class="source-line-no">174</span><span id="line-174"> }</span>
-<span class="source-line-no">175</span><span id="line-175"> managedOptionals.put(key, optional);</span>
-<span class="source-line-no">176</span><span id="line-176"> }</span>
-<span class="source-line-no">177</span><span id="line-177"></span>
-<span class="source-line-no">178</span><span id="line-178"> String localPath = systemDependencyScope == null</span>
-<span class="source-line-no">179</span><span id="line-179"> ? null</span>
-<span class="source-line-no">180</span><span id="line-180"> : systemDependencyScope.getSystemPath(managedDependency.getArtifact());</span>
-<span class="source-line-no">181</span><span id="line-181"> if (localPath != null && !managedLocalPaths.containsKey(key)) {</span>
-<span class="source-line-no">182</span><span id="line-182"> if (managedLocalPaths == this.managedLocalPaths) {</span>
-<span class="source-line-no">183</span><span id="line-183"> managedLocalPaths = new HashMap<>(this.managedLocalPaths);</span>
-<span class="source-line-no">184</span><span id="line-184"> }</span>
-<span class="source-line-no">185</span><span id="line-185"> managedLocalPaths.put(key, localPath);</span>
-<span class="source-line-no">186</span><span id="line-186"> }</span>
-<span class="source-line-no">187</span><span id="line-187"></span>
-<span class="source-line-no">188</span><span id="line-188"> Collection<Exclusion> exclusions = managedDependency.getExclusions();</span>
-<span class="source-line-no">189</span><span id="line-189"> if (!exclusions.isEmpty()) {</span>
-<span class="source-line-no">190</span><span id="line-190"> if (managedExclusions == this.managedExclusions) {</span>
-<span class="source-line-no">191</span><span id="line-191"> managedExclusions = new HashMap<>(this.managedExclusions);</span>
-<span class="source-line-no">192</span><span id="line-192"> }</span>
-<span class="source-line-no">193</span><span id="line-193"> Collection<Exclusion> managed = managedExclusions.computeIfAbsent(key, k -> new LinkedHashSet<>());</span>
-<span class="source-line-no">194</span><span id="line-194"> managed.addAll(exclusions);</span>
+<span class="source-line-no">021</span><span id="line-21">import java.util.ArrayList;</span>
+<span class="source-line-no">022</span><span id="line-22">import java.util.Collection;</span>
+<span class="source-line-no">023</span><span id="line-23">import java.util.Collections;</span>
+<span class="source-line-no">024</span><span id="line-24">import java.util.HashMap;</span>
+<span class="source-line-no">025</span><span id="line-25">import java.util.LinkedHashSet;</span>
+<span class="source-line-no">026</span><span id="line-26">import java.util.Map;</span>
+<span class="source-line-no">027</span><span id="line-27">import java.util.Objects;</span>
+<span class="source-line-no">028</span><span id="line-28"></span>
+<span class="source-line-no">029</span><span id="line-29">import org.eclipse.aether.artifact.Artifact;</span>
+<span class="source-line-no">030</span><span id="line-30">import org.eclipse.aether.collection.DependencyCollectionContext;</span>
+<span class="source-line-no">031</span><span id="line-31">import org.eclipse.aether.collection.DependencyManagement;</span>
+<span class="source-line-no">032</span><span id="line-32">import org.eclipse.aether.collection.DependencyManager;</span>
+<span class="source-line-no">033</span><span id="line-33">import org.eclipse.aether.graph.Dependency;</span>
+<span class="source-line-no">034</span><span id="line-34">import org.eclipse.aether.graph.Exclusion;</span>
+<span class="source-line-no">035</span><span id="line-35">import org.eclipse.aether.scope.ScopeManager;</span>
+<span class="source-line-no">036</span><span id="line-36">import org.eclipse.aether.scope.SystemDependencyScope;</span>
+<span class="source-line-no">037</span><span id="line-37"></span>
+<span class="source-line-no">038</span><span id="line-38">import static java.util.Objects.requireNonNull;</span>
+<span class="source-line-no">039</span><span id="line-39"></span>
+<span class="source-line-no">040</span><span id="line-40">/**</span>
+<span class="source-line-no">041</span><span id="line-41"> * A dependency manager support class.</span>
+<span class="source-line-no">042</span><span id="line-42"> * <p></span>
+<span class="source-line-no">043</span><span id="line-43"> * This implementation is Maven specific, as it works hand-in-hand along with Maven ModelBuilder. While model builder</span>
+<span class="source-line-no">044</span><span id="line-44"> * handles dependency management in the context of single POM (inheritance, imports, etc.), this implementation carries</span>
+<span class="source-line-no">045</span><span id="line-45"> * in-lineage modifications based on previously recorded dependency management rules sourced from ascendants while</span>
+<span class="source-line-no">046</span><span id="line-46"> * building the dependency graph. Root sourced management rules are special, in a way they are always applied, while</span>
+<span class="source-line-no">047</span><span id="line-47"> * en-route collected ones are carefully applied to proper descendants only, to not override work done by model</span>
+<span class="source-line-no">048</span><span id="line-48"> * builder already.</span>
+<span class="source-line-no">049</span><span id="line-49"> * <p></span>
+<span class="source-line-no">050</span><span id="line-50"> * Details: Model builder handles version, scope from own dependency management (think "effective POM"). On the other</span>
+<span class="source-line-no">051</span><span id="line-51"> * hand it does not handle optional for example. System paths are aligned across whole graph, making sure there is</span>
+<span class="source-line-no">052</span><span id="line-52"> * same system path used by same dependency. Finally, exclusions (exclusions are additional information not effective</span>
+<span class="source-line-no">053</span><span id="line-53"> * or applied in same POM) are always applied. This implementation makes sure, that version and scope are not applied</span>
+<span class="source-line-no">054</span><span id="line-54"> * onto same node that actually provided the rules, to no override work that ModelBuilder did. It achieves this goal</span>
+<span class="source-line-no">055</span><span id="line-55"> * by tracking "depth" for each collected rule and ignoring rules coming from same depth as processed dependency node is.</span>
+<span class="source-line-no">056</span><span id="line-56"> *</span>
+<span class="source-line-no">057</span><span id="line-57"> * @since 2.0.0</span>
+<span class="source-line-no">058</span><span id="line-58"> */</span>
+<span class="source-line-no">059</span><span id="line-59">public abstract class AbstractDependencyManager implements DependencyManager {</span>
+<span class="source-line-no">060</span><span id="line-60"></span>
+<span class="source-line-no">061</span><span id="line-61"> protected final int depth;</span>
+<span class="source-line-no">062</span><span id="line-62"></span>
+<span class="source-line-no">063</span><span id="line-63"> protected final int deriveUntil;</span>
+<span class="source-line-no">064</span><span id="line-64"></span>
+<span class="source-line-no">065</span><span id="line-65"> protected final int applyFrom;</span>
+<span class="source-line-no">066</span><span id="line-66"></span>
+<span class="source-line-no">067</span><span id="line-67"> protected final Map<Object, Holder<String>> managedVersions;</span>
+<span class="source-line-no">068</span><span id="line-68"></span>
+<span class="source-line-no">069</span><span id="line-69"> protected final Map<Object, Holder<String>> managedScopes;</span>
+<span class="source-line-no">070</span><span id="line-70"></span>
+<span class="source-line-no">071</span><span id="line-71"> protected final Map<Object, Holder<Boolean>> managedOptionals;</span>
+<span class="source-line-no">072</span><span id="line-72"></span>
+<span class="source-line-no">073</span><span id="line-73"> protected final Map<Object, Holder<String>> managedLocalPaths;</span>
+<span class="source-line-no">074</span><span id="line-74"></span>
+<span class="source-line-no">075</span><span id="line-75"> protected final Map<Object, Collection<Holder<Collection<Exclusion>>>> managedExclusions;</span>
+<span class="source-line-no">076</span><span id="line-76"></span>
+<span class="source-line-no">077</span><span id="line-77"> protected final SystemDependencyScope systemDependencyScope;</span>
+<span class="source-line-no">078</span><span id="line-78"></span>
+<span class="source-line-no">079</span><span id="line-79"> private final int hashCode;</span>
+<span class="source-line-no">080</span><span id="line-80"></span>
+<span class="source-line-no">081</span><span id="line-81"> protected AbstractDependencyManager(int deriveUntil, int applyFrom, ScopeManager scopeManager) {</span>
+<span class="source-line-no">082</span><span id="line-82"> this(</span>
+<span class="source-line-no">083</span><span id="line-83"> 0,</span>
+<span class="source-line-no">084</span><span id="line-84"> deriveUntil,</span>
+<span class="source-line-no">085</span><span id="line-85"> applyFrom,</span>
+<span class="source-line-no">086</span><span id="line-86"> Collections.emptyMap(),</span>
+<span class="source-line-no">087</span><span id="line-87"> Collections.emptyMap(),</span>
+<span class="source-line-no">088</span><span id="line-88"> Collections.emptyMap(),</span>
+<span class="source-line-no">089</span><span id="line-89"> Collections.emptyMap(),</span>
+<span class="source-line-no">090</span><span id="line-90"> Collections.emptyMap(),</span>
+<span class="source-line-no">091</span><span id="line-91"> scopeManager != null</span>
+<span class="source-line-no">092</span><span id="line-92"> ? scopeManager.getSystemDependencyScope().orElse(null)</span>
+<span class="source-line-no">093</span><span id="line-93"> : SystemDependencyScope.LEGACY);</span>
+<span class="source-line-no">094</span><span id="line-94"> }</span>
+<span class="source-line-no">095</span><span id="line-95"></span>
+<span class="source-line-no">096</span><span id="line-96"> @SuppressWarnings("checkstyle:ParameterNumber")</span>
+<span class="source-line-no">097</span><span id="line-97"> protected AbstractDependencyManager(</span>
+<span class="source-line-no">098</span><span id="line-98"> int depth,</span>
+<span class="source-line-no">099</span><span id="line-99"> int deriveUntil,</span>
+<span class="source-line-no">100</span><span id="line-100"> int applyFrom,</span>
+<span class="source-line-no">101</span><span id="line-101"> Map<Object, Holder<String>> managedVersions,</span>
+<span class="source-line-no">102</span><span id="line-102"> Map<Object, Holder<String>> managedScopes,</span>
+<span class="source-line-no">103</span><span id="line-103"> Map<Object, Holder<Boolean>> managedOptionals,</span>
+<span class="source-line-no">104</span><span id="line-104"> Map<Object, Holder<String>> managedLocalPaths,</span>
+<span class="source-line-no">105</span><span id="line-105"> Map<Object, Collection<Holder<Collection<Exclusion>>>> managedExclusions,</span>
+<span class="source-line-no">106</span><span id="line-106"> SystemDependencyScope systemDependencyScope) {</span>
+<span class="source-line-no">107</span><span id="line-107"> this.depth = depth;</span>
+<span class="source-line-no">108</span><span id="line-108"> this.deriveUntil = deriveUntil;</span>
+<span class="source-line-no">109</span><span id="line-109"> this.applyFrom = applyFrom;</span>
+<span class="source-line-no">110</span><span id="line-110"> this.managedVersions = requireNonNull(managedVersions);</span>
+<span class="source-line-no">111</span><span id="line-111"> this.managedScopes = requireNonNull(managedScopes);</span>
+<span class="source-line-no">112</span><span id="line-112"> this.managedOptionals = requireNonNull(managedOptionals);</span>
+<span class="source-line-no">113</span><span id="line-113"> this.managedLocalPaths = requireNonNull(managedLocalPaths);</span>
+<span class="source-line-no">114</span><span id="line-114"> this.managedExclusions = requireNonNull(managedExclusions);</span>
+<span class="source-line-no">115</span><span id="line-115"> // nullable: if using scope manager, but there is no system scope defined</span>
+<span class="source-line-no">116</span><span id="line-116"> this.systemDependencyScope = systemDependencyScope;</span>
+<span class="source-line-no">117</span><span id="line-117"></span>
+<span class="source-line-no">118</span><span id="line-118"> this.hashCode = Objects.hash(</span>
+<span class="source-line-no">119</span><span id="line-119"> depth,</span>
+<span class="source-line-no">120</span><span id="line-120"> deriveUntil,</span>
+<span class="source-line-no">121</span><span id="line-121"> applyFrom,</span>
+<span class="source-line-no">122</span><span id="line-122"> managedVersions,</span>
+<span class="source-line-no">123</span><span id="line-123"> managedScopes,</span>
+<span class="source-line-no">124</span><span id="line-124"> managedOptionals,</span>
+<span class="source-line-no">125</span><span id="line-125"> managedLocalPaths,</span>
+<span class="source-line-no">126</span><span id="line-126"> managedExclusions);</span>
+<span class="source-line-no">127</span><span id="line-127"> }</span>
+<span class="source-line-no">128</span><span id="line-128"></span>
+<span class="source-line-no">129</span><span id="line-129"> protected abstract DependencyManager newInstance(</span>
+<span class="source-line-no">130</span><span id="line-130"> Map<Object, Holder<String>> managedVersions,</span>
+<span class="source-line-no">131</span><span id="line-131"> Map<Object, Holder<String>> managedScopes,</span>
+<span class="source-line-no">132</span><span id="line-132"> Map<Object, Holder<Boolean>> managedOptionals,</span>
+<span class="source-line-no">133</span><span id="line-133"> Map<Object, Holder<String>> managedLocalPaths,</span>
+<span class="source-line-no">134</span><span id="line-134"> Map<Object, Collection<Holder<Collection<Exclusion>>>> managedExclusions);</span>
+<span class="source-line-no">135</span><span id="line-135"></span>
+<span class="source-line-no">136</span><span id="line-136"> @Override</span>
+<span class="source-line-no">137</span><span id="line-137"> public DependencyManager deriveChildManager(DependencyCollectionContext context) {</span>
+<span class="source-line-no">138</span><span id="line-138"> requireNonNull(context, "context cannot be null");</span>
+<span class="source-line-no">139</span><span id="line-139"> if (!isDerived()) {</span>
+<span class="source-line-no">140</span><span id="line-140"> return this;</span>
+<span class="source-line-no">141</span><span id="line-141"> }</span>
+<span class="source-line-no">142</span><span id="line-142"></span>
+<span class="source-line-no">143</span><span id="line-143"> Map<Object, Holder<String>> managedVersions = this.managedVersions;</span>
+<span class="source-line-no">144</span><span id="line-144"> Map<Object, Holder<String>> managedScopes = this.managedScopes;</span>
+<span class="source-line-no">145</span><span id="line-145"> Map<Object, Holder<Boolean>> managedOptionals = this.managedOptionals;</span>
+<span class="source-line-no">146</span><span id="line-146"> Map<Object, Holder<String>> managedLocalPaths = this.managedLocalPaths;</span>
+<span class="source-line-no">147</span><span id="line-147"> Map<Object, Collection<Holder<Collection<Exclusion>>>> managedExclusions = this.managedExclusions;</span>
+<span class="source-line-no">148</span><span id="line-148"></span>
+<span class="source-line-no">149</span><span id="line-149"> for (Dependency managedDependency : context.getManagedDependencies()) {</span>
+<span class="source-line-no">150</span><span id="line-150"> Artifact artifact = managedDependency.getArtifact();</span>
+<span class="source-line-no">151</span><span id="line-151"> Object key = new Key(artifact);</span>
+<span class="source-line-no">152</span><span id="line-152"></span>
+<span class="source-line-no">153</span><span id="line-153"> String version = artifact.getVersion();</span>
+<span class="source-line-no">154</span><span id="line-154"> if (!version.isEmpty() && !managedVersions.containsKey(key)) {</span>
+<span class="source-line-no">155</span><span id="line-155"> if (managedVersions == this.managedVersions) {</span>
+<span class="source-line-no">156</span><span id="line-156"> managedVersions = new HashMap<>(this.managedVersions);</span>
+<span class="source-line-no">157</span><span id="line-157"> }</span>
+<span class="source-line-no">158</span><span id="line-158"> managedVersions.put(key, new Holder<>(depth, version));</span>
+<span class="source-line-no">159</span><span id="line-159"> }</span>
+<span class="source-line-no">160</span><span id="line-160"></span>
+<span class="source-line-no">161</span><span id="line-161"> String scope = managedDependency.getScope();</span>
+<span class="source-line-no">162</span><span id="line-162"> if (!scope.isEmpty() && !managedScopes.containsKey(key)) {</span>
+<span class="source-line-no">163</span><span id="line-163"> if (managedScopes == this.managedScopes) {</span>
+<span class="source-line-no">164</span><span id="line-164"> managedScopes = new HashMap<>(this.managedScopes);</span>
+<span class="source-line-no">165</span><span id="line-165"> }</span>
+<span class="source-line-no">166</span><span id="line-166"> managedScopes.put(key, new Holder<>(depth, scope));</span>
+<span class="source-line-no">167</span><span id="line-167"> }</span>
+<span class="source-line-no">168</span><span id="line-168"></span>
+<span class="source-line-no">169</span><span id="line-169"> Boolean optional = managedDependency.getOptional();</span>
+<span class="source-line-no">170</span><span id="line-170"> if (optional != null && !managedOptionals.containsKey(key)) {</span>
+<span class="source-line-no">171</span><span id="line-171"> if (managedOptionals == this.managedOptionals) {</span>
+<span class="source-line-no">172</span><span id="line-172"> managedOptionals = new HashMap<>(this.managedOptionals);</span>
+<span class="source-line-no">173</span><span id="line-173"> }</span>
+<span class="source-line-no">174</span><span id="line-174"> managedOptionals.put(key, new Holder<>(depth, optional));</span>
+<span class="source-line-no">175</span><span id="line-175"> }</span>
+<span class="source-line-no">176</span><span id="line-176"></span>
+<span class="source-line-no">177</span><span id="line-177"> String localPath = systemDependencyScope == null</span>
+<span class="source-line-no">178</span><span id="line-178"> ? null</span>
+<span class="source-line-no">179</span><span id="line-179"> : systemDependencyScope.getSystemPath(managedDependency.getArtifact());</span>
+<span class="source-line-no">180</span><span id="line-180"> if (localPath != null && !managedLocalPaths.containsKey(key)) {</span>
+<span class="source-line-no">181</span><span id="line-181"> if (managedLocalPaths == this.managedLocalPaths) {</span>
+<span class="source-line-no">182</span><span id="line-182"> managedLocalPaths = new HashMap<>(this.managedLocalPaths);</span>
+<span class="source-line-no">183</span><span id="line-183"> }</span>
+<span class="source-line-no">184</span><span id="line-184"> managedLocalPaths.put(key, new Holder<>(depth, localPath));</span>
+<span class="source-line-no">185</span><span id="line-185"> }</span>
+<span class="source-line-no">186</span><span id="line-186"></span>
+<span class="source-line-no">187</span><span id="line-187"> Collection<Exclusion> exclusions = managedDependency.getExclusions();</span>
+<span class="source-line-no">188</span><span id="line-188"> if (!exclusions.isEmpty()) {</span>
+<span class="source-line-no">189</span><span id="line-189"> if (managedExclusions == this.managedExclusions) {</span>
+<span class="source-line-no">190</span><span id="line-190"> managedExclusions = new HashMap<>(this.managedExclusions);</span>
+<span class="source-line-no">191</span><span id="line-191"> }</span>
+<span class="source-line-no">192</span><span id="line-192"> Collection<Holder<Collection<Exclusion>>> managed =</span>
+<span class="source-line-no">193</span><span id="line-193"> managedExclusions.computeIfAbsent(key, k -> new ArrayList<>());</span>
+<span class="source-line-no">194</span><span id="line-194"> managed.add(new Holder<>(depth, exclusions));</span>
<span class="source-line-no">195</span><span id="line-195"> }</span>
<span class="source-line-no">196</span><span id="line-196"> }</span>
<span class="source-line-no">197</span><span id="line-197"></span>
-<span class="source-line-no">198</span><span id="line-198"> return newInstance(</span>
-<span class="source-line-no">199</span><span id="line-199"> managedVersions, managedScopes, managedOptionals, managedLocalPaths, managedExclusions, nextContext);</span>
-<span class="source-line-no">200</span><span id="line-200"> }</span>
-<span class="source-line-no">201</span><span id="line-201"></span>
-<span class="source-line-no">202</span><span id="line-202"> @Override</span>
-<span class="source-line-no">203</span><span id="line-203"> public DependencyManagement manageDependency(Dependency dependency) {</span>
-<span class="source-line-no">204</span><span id="line-204"> requireNonNull(dependency, "dependency cannot be null");</span>
-<span class="source-line-no">205</span><span id="line-205"> DependencyManagement management = null;</span>
-<span class="source-line-no">206</span><span id="line-206"> Object key = new Key(dependency.getArtifact());</span>
-<span class="source-line-no">207</span><span id="line-207"></span>
-<span class="source-line-no">208</span><span id="line-208"> if (isApplied()) {</span>
-<span class="source-line-no">209</span><span id="line-209"> String version = managedVersions.get(key);</span>
-<span class="source-line-no">210</span><span id="line-210"> if (version != null) {</span>
-<span class="source-line-no">211</span><span id="line-211"> management = new DependencyManagement();</span>
-<span class="source-line-no">212</span><span id="line-212"> management.setVersion(version);</span>
-<span class="source-line-no">213</span><span id="line-213"> }</span>
-<span class="source-line-no">214</span><span id="line-214"></span>
-<span class="source-line-no">215</span><span id="line-215"> String scope = managedScopes.get(key);</span>
-<span class="source-line-no">216</span><span id="line-216"> if (scope != null) {</span>
-<span class="source-line-no">217</span><span id="line-217"> if (management == null) {</span>
-<span class="source-line-no">218</span><span id="line-218"> management = new DependencyManagement();</span>
-<span class="source-line-no">219</span><span id="line-219"> }</span>
-<span class="source-line-no">220</span><span id="line-220"> management.setScope(scope);</span>
-<span class="source-line-no">221</span><span id="line-221"></span>
-<span class="source-line-no">222</span><span id="line-222"> if (systemDependencyScope != null</span>
-<span class="source-line-no">223</span><span id="line-223"> && !systemDependencyScope.is(scope)</span>
-<span class="source-line-no">224</span><span id="line-224"> && systemDependencyScope.getSystemPath(dependency.getArtifact()) != null) {</span>
-<span class="source-line-no">225</span><span id="line-225"> Map<String, String> properties =</span>
-<span class="source-line-no">226</span><span id="line-226"> new HashMap<>(dependency.getArtifact().getProperties());</span>
-<span class="source-line-no">227</span><span id="line-227"> systemDependencyScope.setSystemPath(properties, null);</span>
-<span class="source-line-no">228</span><span id="line-228"> management.setProperties(properties);</span>
-<span class="source-line-no">229</span><span id="line-229"> }</span>
-<span class="source-line-no">230</span><span id="line-230"> }</span>
-<span class="source-line-no">231</span><span id="line-231"></span>
-<span class="source-line-no">232</span><span id="line-232"> if (systemDependencyScope != null</span>
-<span class="source-line-no">233</span><span id="line-233"> && (systemDependencyScope.is(scope)</span>
-<span class="source-line-no">234</span><span id="line-234"> || (scope == null && systemDependencyScope.is(dependency.getScope())))) {</span>
-<span class="source-line-no">235</span><span id="line-235"> String localPath = managedLocalPaths.get(key);</span>
-<span class="source-line-no">236</span><span id="line-236"> if (localPath != null) {</span>
-<span class="source-line-no">237</span><span id="line-237"> if (management == null) {</span>
-<span class="source-line-no">238</span><span id="line-238"> management = new DependencyManagement();</span>
-<span class="source-line-no">239</span><span id="line-239"> }</span>
-<span class="source-line-no">240</span><span id="line-240"> Map<String, String> properties =</span>
-<span class="source-line-no">241</span><span id="line-241"> new HashMap<>(dependency.getArtifact().getProperties());</span>
-<span class="source-line-no">242</span><span id="line-242"> systemDependencyScope.setSystemPath(properties, localPath);</span>
-<span class="source-line-no">243</span><span id="line-243"> management.setProperties(properties);</span>
-<span class="source-line-no">244</span><span id="line-244"> }</span>
-<span class="source-line-no">245</span><span id="line-245"> }</span>
-<span class="source-line-no">246</span><span id="line-246"></span>
-<span class="source-line-no">247</span><span id="line-247"> Boolean optional = managedOptionals.get(key);</span>
-<span class="source-line-no">248</span><span id="line-248"> if (optional != null) {</span>
-<span class="source-line-no">249</span><span id="line-249"> if (management == null) {</span>
-<span class="source-line-no">250</span><span id="line-250"> management = new DependencyManagement();</span>
-<span class="source-line-no">251</span><span id="line-251"> }</span>
-<span class="source-line-no">252</span><span id="line-252"> management.setOptional(optional);</span>
-<span class="source-line-no">253</span><span id="line-253"> }</span>
-<span class="source-line-no">254</span><span id="line-254"> }</span>
-<span class="source-line-no">255</span><span id="line-255"></span>
-<span class="source-line-no">256</span><span id="line-256"> Collection<Exclusion> exclusions = managedExclusions.get(key);</span>
-<span class="source-line-no">257</span><span id="line-257"> if (exclusions != null) {</span>
-<span class="source-line-no">258</span><span id="line-258"> if (management == null) {</span>
-<span class="source-line-no">259</span><span id="line-259"> management = new DependencyManagement();</span>
+<span class="source-line-no">198</span><span id="line-198"> return newInstance(managedVersions, managedScopes, managedOptionals, managedLocalPaths, managedExclusions);</span>
+<span class="source-line-no">199</span><span id="line-199"> }</span>
+<span class="source-line-no">200</span><span id="line-200"></span>
+<span class="source-line-no">201</span><span id="line-201"> @Override</span>
+<span class="source-line-no">202</span><span id="line-202"> public DependencyManagement manageDependency(Dependency dependency) {</span>
+<span class="source-line-no">203</span><span id="line-203"> requireNonNull(dependency, "dependency cannot be null");</span>
+<span class="source-line-no">204</span><span id="line-204"> DependencyManagement management = null;</span>
+<span class="source-line-no">205</span><span id="line-205"> Object key = new Key(dependency.getArtifact());</span>
+<span class="source-line-no">206</span><span id="line-206"></span>
+<span class="source-line-no">207</span><span id="line-207"> if (isApplied()) {</span>
+<span class="source-line-no">208</span><span id="line-208"> Holder<String> version = managedVersions.get(key);</span>
+<span class="source-line-no">209</span><span id="line-209"> // is managed locally by model builder</span>
+<span class="source-line-no">210</span><span id="line-210"> // apply only rules coming from "higher" levels</span>
+<span class="source-line-no">211</span><span id="line-211"> if (version != null && isApplicable(version)) {</span>
+<span class="source-line-no">212</span><span id="line-212"> management = new DependencyManagement();</span>
+<span class="source-line-no">213</span><span id="line-213"> management.setVersion(version.getValue());</span>
+<span class="source-line-no">214</span><span id="line-214"> }</span>
+<span class="source-line-no">215</span><span id="line-215"></span>
+<span class="source-line-no">216</span><span id="line-216"> Holder<String> scope = managedScopes.get(key);</span>
+<span class="source-line-no">217</span><span id="line-217"> // is managed locally by model builder</span>
+<span class="source-line-no">218</span><span id="line-218"> // apply only rules coming from "higher" levels</span>
+<span class="source-line-no">219</span><span id="line-219"> if (scope != null && isApplicable(scope)) {</span>
+<span class="source-line-no">220</span><span id="line-220"> if (management == null) {</span>
+<span class="source-line-no">221</span><span id="line-221"> management = new DependencyManagement();</span>
+<span class="source-line-no">222</span><span id="line-222"> }</span>
+<span class="source-line-no">223</span><span id="line-223"> management.setScope(scope.getValue());</span>
+<span class="source-line-no">224</span><span id="line-224"></span>
+<span class="source-line-no">225</span><span id="line-225"> if (systemDependencyScope != null</span>
+<span class="source-line-no">226</span><span id="line-226"> && !systemDependencyScope.is(scope.getValue())</span>
+<span class="source-line-no">227</span><span id="line-227"> && systemDependencyScope.getSystemPath(dependency.getArtifact()) != null) {</span>
+<span class="source-line-no">228</span><span id="line-228"> Map<String, String> properties =</span>
+<span class="source-line-no">229</span><span id="line-229"> new HashMap<>(dependency.getArtifact().getProperties());</span>
+<span class="source-line-no">230</span><span id="line-230"> systemDependencyScope.setSystemPath(properties, null);</span>
+<span class="source-line-no">231</span><span id="line-231"> management.setProperties(properties);</span>
+<span class="source-line-no">232</span><span id="line-232"> }</span>
+<span class="source-line-no">233</span><span id="line-233"> }</span>
+<span class="source-line-no">234</span><span id="line-234"></span>
+<span class="source-line-no">235</span><span id="line-235"> // system scope paths always applied to have them aligned</span>
+<span class="source-line-no">236</span><span id="line-236"> // (same artifact == same path) in whole graph</span>
+<span class="source-line-no">237</span><span id="line-237"> if (systemDependencyScope != null</span>
+<span class="source-line-no">238</span><span id="line-238"> && (scope != null && systemDependencyScope.is(scope.getValue())</span>
+<span class="source-line-no">239</span><span id="line-239"> || (scope == null && systemDependencyScope.is(dependency.getScope())))) {</span>
+<span class="source-line-no">240</span><span id="line-240"> Holder<String> localPath = managedLocalPaths.get(key);</span>
+<span class="source-line-no">241</span><span id="line-241"> if (localPath != null) {</span>
+<span class="source-line-no">242</span><span id="line-242"> if (management == null) {</span>
+<span class="source-line-no">243</span><span id="line-243"> management = new DependencyManagement();</span>
+<span class="source-line-no">244</span><span id="line-244"> }</span>
+<span class="source-line-no">245</span><span id="line-245"> Map<String, String> properties =</span>
+<span class="source-line-no">246</span><span id="line-246"> new HashMap<>(dependency.getArtifact().getProperties());</span>
+<span class="source-line-no">247</span><span id="line-247"> systemDependencyScope.setSystemPath(properties, localPath.getValue());</span>
+<span class="source-line-no">248</span><span id="line-248"> management.setProperties(properties);</span>
+<span class="source-line-no">249</span><span id="line-249"> }</span>
+<span class="source-line-no">250</span><span id="line-250"> }</span>
+<span class="source-line-no">251</span><span id="line-251"></span>
+<span class="source-line-no">252</span><span id="line-252"> // optional is not managed by model builder</span>
+<span class="source-line-no">253</span><span id="line-253"> // apply only rules coming from "higher" levels</span>
+<span class="source-line-no">254</span><span id="line-254"> Holder<Boolean> optional = managedOptionals.get(key);</span>
+<span class="source-line-no">255</span><span id="line-255"> if (optional != null && isApplicable(optional)) {</span>
+<span class="source-line-no">256</span><span id="line-256"> if (management == null) {</span>
+<span class="source-line-no">257</span><span id="line-257"> management = new DependencyManagement();</span>
+<span class="source-line-no">258</span><span id="line-258"> }</span>
+<span class="source-line-no">259</span><span id="line-259"> management.setOptional(optional.getValue());</span>
<span class="source-line-no">260</span><span id="line-260"> }</span>
-<span class="source-line-no">261</span><span id="line-261"> Collection<Exclusion> result = new LinkedHashSet<>(dependency.getExclusions());</span>
-<span class="source-line-no">262</span><span id="line-262"> result.addAll(exclusions);</span>
-<span class="source-line-no">263</span><span id="line-263"> management.setExclusions(result);</span>
-<span class="source-line-no">264</span><span id="line-264"> }</span>
-<span class="source-line-no">265</span><span id="line-265"></span>
-<span class="source-line-no">266</span><span id="line-266"> return management;</span>
-<span class="source-line-no">267</span><span id="line-267"> }</span>
-<span class="source-line-no">268</span><span id="line-268"></span>
-<span class="source-line-no">269</span><span id="line-269"> /**</span>
-<span class="source-line-no">270</span><span id="line-270"> * Returns {@code true} if current context should be factored in (collected/derived).</span>
-<span class="source-line-no">271</span><span id="line-271"> */</span>
-<span class="source-line-no">272</span><span id="line-272"> protected boolean isDerived() {</span>
-<span class="source-line-no">273</span><span id="line-273"> return depth < deriveUntil;</span>
-<span class="source-line-no">274</span><span id="line-274"> }</span>
-<span class="source-line-no">275</span><span id="line-275"></span>
-<span class="source-line-no">276</span><span id="line-276"> /**</span>
-<span class="source-line-no">277</span><span id="line-277"> * Returns {@code true} if current dependency should be managed according to so far collected/derived rules.</span>
-<span class="source-line-no">278</span><span id="line-278"> */</span>
-<span class="source-line-no">279</span><span id="line-279"> protected boolean isApplied() {</span>
-<span class="source-line-no">280</span><span id="line-280"> return depth >= applyFrom;</span>
+<span class="source-line-no">261</span><span id="line-261"> }</span>
+<span class="source-line-no">262</span><span id="line-262"></span>
+<span class="source-line-no">263</span><span id="line-263"> // exclusions affect only downstream</span>
+<span class="source-line-no">264</span><span id="line-264"> // this will not "exclude" own dependency,</span>
+<span class="source-line-no">265</span><span id="line-265"> // is just added as additional information</span>
+<span class="source-line-no">266</span><span id="line-266"> // ModelBuilder does not merge exclusions (only applies if dependency does not have exclusion)</span>
+<span class="source-line-no">267</span><span id="line-267"> // so we merge it here even from same level</span>
+<span class="source-line-no">268</span><span id="line-268"> Collection<Holder<Collection<Exclusion>>> exclusions = managedExclusions.get(key);</span>
+<span class="source-line-no">269</span><span id="line-269"> if (exclusions != null) {</span>
+<span class="source-line-no">270</span><span id="line-270"> if (management == null) {</span>
+<span class="source-line-no">271</span><span id="line-271"> management = new DependencyManagement();</span>
+<span class="source-line-no">272</span><span id="line-272"> }</span>
+<span class="source-line-no">273</span><span id="line-273"> Collection<Exclusion> result = new LinkedHashSet<>(dependency.getExclusions());</span>
+<span class="source-line-no">274</span><span id="line-274"> for (Holder<Collection<Exclusion>> exclusion : exclusions) {</span>
+<span class="source-line-no">275</span><span id="line-275"> result.addAll(exclusion.getValue());</span>
+<span class="source-line-no">276</span><span id="line-276"> }</span>
+<span class="source-line-no">277</span><span id="line-277"> management.setExclusions(result);</span>
+<span class="source-line-no">278</span><span id="line-278"> }</span>
+<span class="source-line-no">279</span><span id="line-279"></span>
+<span class="source-line-no">280</span><span id="line-280"> return management;</span>
<span class="source-line-no">281</span><span id="line-281"> }</span>
<span class="source-line-no">282</span><span id="line-282"></span>
-<span class="source-line-no">283</span><span id="line-283"> @Override</span>
-<span class="source-line-no">284</span><span id="line-284"> public boolean equals(Object obj) {</span>
-<span class="source-line-no">285</span><span id="line-285"> if (this == obj) {</span>
-<span class="source-line-no">286</span><span id="line-286"> return true;</span>
-<span class="source-line-no">287</span><span id="line-287"> } else if (null == obj || !getClass().equals(obj.getClass())) {</span>
-<span class="source-line-no">288</span><span id="line-288"> return false;</span>
-<span class="source-line-no">289</span><span id="line-289"> }</span>
-<span class="source-line-no">290</span><span id="line-290"></span>
-<span class="source-line-no">291</span><span id="line-291"> AbstractDependencyManager that = (AbstractDependencyManager) obj;</span>
-<span class="source-line-no">292</span><span id="line-292"> return depth == that.depth</span>
-<span class="source-line-no">293</span><span id="line-293"> && deriveUntil == that.deriveUntil</span>
-<span class="source-line-no">294</span><span id="line-294"> && applyFrom == that.applyFrom</span>
-<span class="source-line-no">295</span><span id="line-295"> && managedVersions.equals(that.managedVersions)</span>
-<span class="source-line-no">296</span><span id="line-296"> && managedScopes.equals(that.managedScopes)</span>
-<span class="source-line-no">297</span><span id="line-297"> && managedOptionals.equals(that.managedOptionals)</span>
-<span class="source-line-no">298</span><span id="line-298"> && managedExclusions.equals(that.managedExclusions);</span>
-<span class="source-line-no">299</span><span id="line-299"> }</span>
-<span class="source-line-no">300</span><span id="line-300"></span>
-<span class="source-line-no">301</span><span id="line-301"> @Override</span>
-<span class="source-line-no">302</span><span id="line-302"> public int hashCode() {</span>
-<span class="source-line-no">303</span><span id="line-303"> return hashCode;</span>
-<span class="source-line-no">304</span><span id="line-304"> }</span>
-<span class="source-line-no">305</span><span id="line-305"></span>
-<span class="source-line-no">306</span><span id="line-306"> protected static class Key {</span>
+<span class="source-line-no">283</span><span id="line-283"> /**</span>
+<span class="source-line-no">284</span><span id="line-284"> * Returns {@code true} if current context should be factored in (collected/derived).</span>
+<span class="source-line-no">285</span><span id="line-285"> */</span>
+<span class="source-line-no">286</span><span id="line-286"> protected boolean isDerived() {</span>
+<span class="source-line-no">287</span><span id="line-287"> return depth < deriveUntil;</span>
+<span class="source-line-no">288</span><span id="line-288"> }</span>
+<span class="source-line-no">289</span><span id="line-289"></span>
+<span class="source-line-no">290</span><span id="line-290"> /**</span>
+<span class="source-line-no">291</span><span id="line-291"> * Returns {@code true} if current dependency should be managed according to so far collected/derived rules.</span>
+<span class="source-line-no">292</span><span id="line-292"> */</span>
+<span class="source-line-no">293</span><span id="line-293"> protected boolean isApplied() {</span>
+<span class="source-line-no">294</span><span id="line-294"> return depth >= applyFrom;</span>
+<span class="source-line-no">295</span><span id="line-295"> }</span>
+<span class="source-line-no">296</span><span id="line-296"></span>
+<span class="source-line-no">297</span><span id="line-297"> /**</span>
+<span class="source-line-no">298</span><span id="line-298"> * Returns {@code true} if rule in holder is applicable at current depth.</span>
+<span class="source-line-no">299</span><span id="line-299"> */</span>
+<span class="source-line-no">300</span><span id="line-300"> protected boolean isApplicable(Holder<?> holder) {</span>
+<span class="source-line-no">301</span><span id="line-301"> // explanation: derive collects rules (at given depth) and then last</span>
+<span class="source-line-no">302</span><span id="line-302"> // call newInstance does depth++. This means that distance 1 is still "same node".</span>
+<span class="source-line-no">303</span><span id="line-303"> // Hence, rules from depth - 2 or above should be applied.</span>
+<span class="source-line-no">304</span><span id="line-304"> // root is special: is always applied.</span>
+<span class="source-line-no">305</span><span id="line-305"> return holder.getDepth() == 0 || depth > holder.getDepth() + 1;</span>
+<span class="source-line-no">306</span><span id="line-306"> }</span>
<span class="source-line-no">307</span><span id="line-307"></span>
-<span class="source-line-no">308</span><span id="line-308"> private final Artifact artifact;</span>
-<span class="source-line-no">309</span><span id="line-309"></span>
-<span class="source-line-no">310</span><span id="line-310"> private final int hashCode;</span>
-<span class="source-line-no">311</span><span id="line-311"></span>
-<span class="source-line-no">312</span><span id="line-312"> Key(Artifact artifact) {</span>
-<span class="source-line-no">313</span><span id="line-313"> this.artifact = artifact;</span>
-<span class="source-line-no">314</span><span id="line-314"> this.hashCode = Objects.hash(artifact.getGroupId(), artifact.getArtifactId());</span>
-<span class="source-line-no">315</span><span id="line-315"> }</span>
-<span class="source-line-no">316</span><span id="line-316"></span>
-<span class="source-line-no">317</span><span id="line-317"> @Override</span>
-<span class="source-line-no">318</span><span id="line-318"> public boolean equals(Object obj) {</span>
-<span class="source-line-no">319</span><span id="line-319"> if (obj == this) {</span>
-<span class="source-line-no">320</span><span id="line-320"> return true;</span>
-<span class="source-line-no">321</span><span id="line-321"> } else if (!(obj instanceof Key)) {</span>
-<span class="source-line-no">322</span><span id="line-322"> return false;</span>
-<span class="source-line-no">323</span><span id="line-323"> }</span>
-<span class="source-line-no">324</span><span id="line-324"> Key that = (Key) obj;</span>
-<span class="source-line-no">325</span><span id="line-325"> return artifact.getArtifactId().equals(that.artifact.getArtifactId())</span>
-<span class="source-line-no">326</span><span id="line-326"> && artifact.getGroupId().equals(that.artifact.getGroupId())</span>
-<span class="source-line-no">327</span><span id="line-327"> && artifact.getExtension().equals(that.artifact.getExtension())</span>
-<span class="source-line-no">328</span><span id="line-328"> && artifact.getClassifier().equals(that.artifact.getClassifier());</span>
-<span class="source-line-no">329</span><span id="line-329"> }</span>
+<span class="source-line-no">308</span><span id="line-308"> @Override</span>
+<span class="source-line-no">309</span><span id="line-309"> public boolean equals(Object obj) {</span>
+<span class="source-line-no">310</span><span id="line-310"> if (this == obj) {</span>
+<span class="source-line-no">311</span><span id="line-311"> return true;</span>
+<span class="source-line-no">312</span><span id="line-312"> } else if (null == obj || !getClass().equals(obj.getClass())) {</span>
+<span class="source-line-no">313</span><span id="line-313"> return false;</span>
+<span class="source-line-no">314</span><span id="line-314"> }</span>
+<span class="source-line-no">315</span><span id="line-315"></span>
+<span class="source-line-no">316</span><span id="line-316"> AbstractDependencyManager that = (AbstractDependencyManager) obj;</span>
+<span class="source-line-no">317</span><span id="line-317"> return depth == that.depth</span>
+<span class="source-line-no">318</span><span id="line-318"> && deriveUntil == that.deriveUntil</span>
+<span class="source-line-no">319</span><span id="line-319"> && applyFrom == that.applyFrom</span>
+<span class="source-line-no">320</span><span id="line-320"> && managedVersions.equals(that.managedVersions)</span>
+<span class="source-line-no">321</span><span id="line-321"> && managedScopes.equals(that.managedScopes)</span>
+<span class="source-line-no">322</span><span id="line-322"> && managedOptionals.equals(that.managedOptionals)</span>
+<span class="source-line-no">323</span><span id="line-323"> && managedExclusions.equals(that.managedExclusions);</span>
+<span class="source-line-no">324</span><span id="line-324"> }</span>
+<span class="source-line-no">325</span><span id="line-325"></span>
+<span class="source-line-no">326</span><span id="line-326"> @Override</span>
+<span class="source-line-no">327</span><span id="line-327"> public int hashCode() {</span>
+<span class="source-line-no">328</span><span id="line-328"> return hashCode;</span>
+<span class="source-line-no">329</span><span id="line-329"> }</span>
<span class="source-line-no">330</span><span id="line-330"></span>
-<span class="source-line-no">331</span><span id="line-331"> @Override</span>
-<span class="source-line-no">332</span><span id="line-332"> public int hashCode() {</span>
-<span class="source-line-no">333</span><span id="line-333"> return hashCode;</span>
-<span class="source-line-no">334</span><span id="line-334"> }</span>
-<span class="source-line-no">335</span><span id="line-335"></span>
-<span class="source-line-no">336</span><span id="line-336"> @Override</span>
-<span class="source-line-no">337</span><span id="line-337"> public String toString() {</span>
-<span class="source-line-no">338</span><span id="line-338"> return String.valueOf(artifact);</span>
-<span class="source-line-no">339</span><span id="line-339"> }</span>
-<span class="source-line-no">340</span><span id="line-340"> }</span>
-<span class="source-line-no">341</span><span id="line-341">}</span>
+<span class="source-line-no">331</span><span id="line-331"> protected static class Key {</span>
+<span class="source-line-no">332</span><span id="line-332"> private final Artifact artifact;</span>
+<span class="source-line-no">333</span><span id="line-333"> private final int hashCode;</span>
+<span class="source-line-no">334</span><span id="line-334"></span>
+<span class="source-line-no">335</span><span id="line-335"> Key(Artifact artifact) {</span>
+<span class="source-line-no">336</span><span id="line-336"> this.artifact = artifact;</span>
+<span class="source-line-no">337</span><span id="line-337"> this.hashCode = Objects.hash(artifact.getGroupId(), artifact.getArtifactId());</span>
+<span class="source-line-no">338</span><span id="line-338"> }</span>
+<span class="source-line-no">339</span><span id="line-339"></span>
+<span class="source-line-no">340</span><span id="line-340"> @Override</span>
+<span class="source-line-no">341</span><span id="line-341"> public boolean equals(Object obj) {</span>
+<span class="source-line-no">342</span><span id="line-342"> if (obj == this) {</span>
+<span class="source-line-no">343</span><span id="line-343"> return true;</span>
+<span class="source-line-no">344</span><span id="line-344"> } else if (!(obj instanceof Key)) {</span>
+<span class="source-line-no">345</span><span id="line-345"> return false;</span>
+<span class="source-line-no">346</span><span id="line-346"> }</span>
+<span class="source-line-no">347</span><span id="line-347"> Key that = (Key) obj;</span>
+<span class="source-line-no">348</span><span id="line-348"> return artifact.getArtifactId().equals(that.artifact.getArtifactId())</span>
+<span class="source-line-no">349</span><span id="line-349"> && artifact.getGroupId().equals(that.artifact.getGroupId())</span>
+<span class="source-line-no">350</span><span id="line-350"> && artifact.getExtension().equals(that.artifact.getExtension())</span>
+<span class="source-line-no">351</span><span id="line-351"> && artifact.getClassifier().equals(that.artifact.getClassifier());</span>
+<span class="source-line-no">352</span><span id="line-352"> }</span>
+<span class="source-line-no">353</span><span id="line-353"></span>
+<span class="source-line-no">354</span><span id="line-354"> @Override</span>
+<span class="source-line-no">355</span><span id="line-355"> public int hashCode() {</span>
+<span class="source-line-no">356</span><span id="line-356"> return hashCode;</span>
+<span class="source-line-no">357</span><span id="line-357"> }</span>
+<span class="source-line-no">358</span><span id="line-358"></span>
+<span class="source-line-no">359</span><span id="line-359"> @Override</span>
+<span class="source-line-no">360</span><span id="line-360"> public String toString() {</span>
+<span class="source-line-no">361</span><span id="line-361"> return String.valueOf(artifact);</span>
+<span class="source-line-no">362</span><span id="line-362"> }</span>
+<span class="source-line-no">363</span><span id="line-363"> }</span>
+<span class="source-line-no">364</span><span id="line-364"></span>
+<span class="source-line-no">365</span><span id="line-365"> protected static class Holder<T> {</span>
+<span class="source-line-no">366</span><span id="line-366"> private final int depth;</span>
+<span class="source-line-no">367</span><span id="line-367"> private final T value;</span>
+<span class="source-line-no">368</span><span id="line-368"></span>
+<span class="source-line-no">369</span><span id="line-369"> Holder(int depth, T value) {</span>
+<span class="source-line-no">370</span><span id="line-370"> this.depth = depth;</span>
+<span class="source-line-no">371</span><span id="line-371"> this.value = requireNonNull(value);</span>
+<span class="source-line-no">372</span><span id="line-372"> }</span>
+<span class="source-line-no">373</span><span id="line-373"></span>
+<span class="source-line-no">374</span><span id="line-374"> public int getDepth() {</span>
+<span class="source-line-no">375</span><span id="line-375"> return depth;</span>
+<span class="source-line-no">376</span><span id="line-376"> }</span>
+<span class="source-line-no">377</span><span id="line-377"></span>
+<span class="source-line-no">378</span><span id="line-378"> public T getValue() {</span>
+<span class="source-line-no">379</span><span id="line-379"> return value;</span>
+<span class="source-line-no">380</span><span id="line-380"> }</span>
+<span class="source-line-no">381</span><span id="line-381"> }</span>
+<span class="source-line-no">382</span><span id="line-382">}</span>