diff --git a/hibernate-core/src/main/java/org/hibernate/boot/model/source/internal/hbm/PluralAttributeElementSourceBasicImpl.java b/hibernate-core/src/main/java/org/hibernate/boot/model/source/internal/hbm/PluralAttributeElementSourceBasicImpl.java
index b35a355381..e8af40fca0 100644
--- a/hibernate-core/src/main/java/org/hibernate/boot/model/source/internal/hbm/PluralAttributeElementSourceBasicImpl.java
+++ b/hibernate-core/src/main/java/org/hibernate/boot/model/source/internal/hbm/PluralAttributeElementSourceBasicImpl.java
@@ -66,6 +66,11 @@ public class PluralAttributeElementSourceBasicImpl
 						return jaxbElement.getColumnOrFormula();
 					}
 
+					@Override
+					public Boolean isNullable() {
+						return !jaxbElement.isNotNull();
+					}
+
 					@Override
 					public SizeSource getSizeSource() {
 						return Helper.interpretSizeSource(
diff --git a/hibernate-core/src/test/java/org/hibernate/test/hbm/collectionpk/CollectionPkTest.java b/hibernate-core/src/test/java/org/hibernate/test/hbm/collectionpk/CollectionPkTest.java
new file mode 100644
index 0000000000..0689fb9332
--- /dev/null
+++ b/hibernate-core/src/test/java/org/hibernate/test/hbm/collectionpk/CollectionPkTest.java
@@ -0,0 +1,77 @@
+/*
+ * Hibernate, Relational Persistence for Idiomatic Java
+ *
+ * License: GNU Lesser General Public License (LGPL), version 2.1 or later.
+ * See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
+ */
+package org.hibernate.test.hbm.collectionpk;
+
+import java.util.Collections;
+
+import org.hibernate.boot.Metadata;
+import org.hibernate.boot.MetadataSources;
+import org.hibernate.boot.registry.StandardServiceRegistry;
+import org.hibernate.boot.registry.StandardServiceRegistryBuilder;
+import org.hibernate.tool.schema.spi.SchemaCreator;
+import org.hibernate.tool.schema.spi.SchemaManagementTool;
+
+import org.hibernate.testing.TestForIssue;
+import org.hibernate.testing.junit4.BaseUnitTestCase;
+import org.hibernate.test.hbm.index.JournalingSchemaToolingTarget;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+
+import static org.junit.Assert.assertTrue;
+
+/**
+ * @author Steve Ebersole
+ */
+@TestForIssue( jiraKey = "HHH-10206" )
+public class CollectionPkTest extends BaseUnitTestCase {
+	private StandardServiceRegistry ssr;
+
+	@Before
+	public void before() {
+		ssr = new StandardServiceRegistryBuilder().build();
+	}
+
+	@After
+	public void after() {
+		if ( ssr != null ) {
+			StandardServiceRegistryBuilder.destroy( ssr );
+		}
+	}
+
+	@Test
+	public void testSet() {
+		verifyPkNameUsed(
+				"org/hibernate/test/hbm/collectionpk/person_set.hbm.xml",
+				"primary key (group, name)"
+		);
+	}
+
+	private void verifyPkNameUsed(String mappingResource, String expectedName) {
+		final Metadata metadata = new MetadataSources( ssr )
+				.addResource( mappingResource )
+				.buildMetadata();
+
+		final SchemaCreator schemaCreator = ssr.getService( SchemaManagementTool.class ).getSchemaCreator( Collections.emptyMap() );
+		final JournalingSchemaToolingTarget target = new JournalingSchemaToolingTarget();
+		schemaCreator.doCreation( metadata, false, target );
+
+		assertTrue(
+				"Expected foreign-key name [" + expectedName + "] not seen in schema creation output",
+				target.containedText( expectedName )
+		);
+	}
+
+	@Test
+	public void testMap() {
+		verifyPkNameUsed(
+				"org/hibernate/test/hbm/collectionpk/person_map.hbm.xml",
+				"primary key (group, locale)"
+		);
+	}
+
+}
diff --git a/hibernate-core/src/test/java/org/hibernate/test/hbm/index/PersonComment.java b/hibernate-core/src/test/java/org/hibernate/test/hbm/index/PersonComment.java
new file mode 100644
index 0000000000..bc8c700b84
--- /dev/null
+++ b/hibernate-core/src/test/java/org/hibernate/test/hbm/index/PersonComment.java
@@ -0,0 +1,28 @@
+/*
+ * Hibernate, Relational Persistence for Idiomatic Java
+ *
+ * License: GNU Lesser General Public License (LGPL), version 2.1 or later.
+ * See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
+ */
+package org.hibernate.test.hbm.index;
+
+public class PersonComment {
+	private String locale;
+	private String value;
+
+	public String getLocale() {
+		return locale;
+	}
+
+	public void setLocale(String locale) {
+		this.locale = locale;
+	}
+
+	public String getValue() {
+		return value;
+	}
+
+	public void setValue(String value) {
+		this.value = value;
+	}
+}
diff --git a/hibernate-core/src/test/java/org/hibernate/test/hbm/index/PersonGroup.java b/hibernate-core/src/test/java/org/hibernate/test/hbm/index/PersonGroup.java
index 0b2d366330..186495dde2 100644
--- a/hibernate-core/src/test/java/org/hibernate/test/hbm/index/PersonGroup.java
+++ b/hibernate-core/src/test/java/org/hibernate/test/hbm/index/PersonGroup.java
@@ -6,8 +6,50 @@
  */
 package org.hibernate.test.hbm.index;
 
-/**
- * @author Steve Ebersole
- */
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Set;
+
 public class PersonGroup {
+	private long id;
+	private String name;
+	private Set<Person> persons = new HashSet<Person>();
+	private Map<String, String> comments = new HashMap<String,String>();
+
+	public PersonGroup(String name) {
+		this.name = name;
+	}
+
+	public long getId() {
+		return id;
+	}
+
+	public void setId(long id) {
+		this.id = id;
+	}
+
+	public String getName() {
+		return name;
+	}
+
+	public void setName(String name) {
+		this.name = name;
+	}
+
+	public Set<Person> getPersons() {
+		return persons;
+	}
+
+	public void setPersons(Set<Person> persons) {
+		this.persons = persons;
+	}
+
+	public Map<String, String> getComments() {
+		return comments;
+	}
+
+	public void setComments(Map<String, String> comments) {
+		this.comments = comments;
+	}
 }
diff --git a/hibernate-core/src/test/resources/org/hibernate/test/hbm/collectionpk/person_map.hbm.xml b/hibernate-core/src/test/resources/org/hibernate/test/hbm/collectionpk/person_map.hbm.xml
new file mode 100644
index 0000000000..bbe5825688
--- /dev/null
+++ b/hibernate-core/src/test/resources/org/hibernate/test/hbm/collectionpk/person_map.hbm.xml
@@ -0,0 +1,25 @@
+<?xml version="1.0"?>
+<!--
+  ~ Hibernate, Relational Persistence for Idiomatic Java
+  ~
+  ~ License: GNU Lesser General Public License (LGPL), version 2.1 or later.
+  ~ See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
+  -->
+<!DOCTYPE hibernate-mapping PUBLIC
+        "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
+        "http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">
+
+<hibernate-mapping package="org.hibernate.test.hbm.index">
+
+    <class name="PersonGroup">
+        <id name="id" type="long">
+            <generator class="native" />
+        </id>
+        <map name="comments" table="PersonGroupComment">
+            <key column="group" foreign-key="comment_persongroup_fk"/>
+            <map-key column="locale" type="string"/>
+            <element column="name" type="string" />
+        </map>
+    </class>
+
+</hibernate-mapping>
\ No newline at end of file
diff --git a/hibernate-core/src/test/resources/org/hibernate/test/hbm/collectionpk/person_set.hbm.xml b/hibernate-core/src/test/resources/org/hibernate/test/hbm/collectionpk/person_set.hbm.xml
new file mode 100644
index 0000000000..3dde017764
--- /dev/null
+++ b/hibernate-core/src/test/resources/org/hibernate/test/hbm/collectionpk/person_set.hbm.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0"?>
+<!--
+  ~ Hibernate, Relational Persistence for Idiomatic Java
+  ~
+  ~ License: GNU Lesser General Public License (LGPL), version 2.1 or later.
+  ~ See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
+  -->
+<!DOCTYPE hibernate-mapping PUBLIC
+        "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
+        "http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">
+
+<hibernate-mapping package="org.hibernate.test.hbm.index">
+
+    <class name="PersonGroup">
+        <id name="id" type="long">
+            <generator class="native" />
+        </id>
+        <set name="persons" table="Person">
+            <key column="group" foreign-key="person_persongroup_fk"/>
+            <element column="name" type="string" not-null="true" />
+        </set>
+    </class>
+
+</hibernate-mapping>
\ No newline at end of file