diff --git a/src/main/java/org/apache/commons/collections/bidimap/AbstractDualBidiMap.java b/src/main/java/org/apache/commons/collections/bidimap/AbstractDualBidiMap.java
index 5d18cbfce..8bb602f8d 100644
--- a/src/main/java/org/apache/commons/collections/bidimap/AbstractDualBidiMap.java
+++ b/src/main/java/org/apache/commons/collections/bidimap/AbstractDualBidiMap.java
@@ -326,6 +326,10 @@ public abstract class AbstractDualBidiMap<K, V> implements BidiMap<K, V> {
     @SuppressWarnings("serial")
     protected static abstract class View<K, V, E> extends AbstractCollectionDecorator<E> {
 
+        /**
+         * Generated serial version ID.
+         */
+        private static final long serialVersionUID = 4621510560119690639L;
         /** The parent map */
         protected final AbstractDualBidiMap<K, V> parent;
 
diff --git a/src/main/java/org/apache/commons/collections/map/AbstractInputCheckedMapDecorator.java b/src/main/java/org/apache/commons/collections/map/AbstractInputCheckedMapDecorator.java
index 1c80466de..de161a5dd 100644
--- a/src/main/java/org/apache/commons/collections/map/AbstractInputCheckedMapDecorator.java
+++ b/src/main/java/org/apache/commons/collections/map/AbstractInputCheckedMapDecorator.java
@@ -109,6 +109,10 @@ abstract class AbstractInputCheckedMapDecorator<K, V>
     @SuppressWarnings("serial")
     private class EntrySet extends AbstractSetDecorator<Map.Entry<K, V>> {
         
+        /**
+         * Generated serial version ID.
+         */
+        private static final long serialVersionUID = 4354731610923110264L;
         /** The parent map */
         private final AbstractInputCheckedMapDecorator<K, V> parent;
 
diff --git a/src/test/java/org/apache/commons/collections/FactoryUtilsTest.java b/src/test/java/org/apache/commons/collections/FactoryUtilsTest.java
index 8f16522d8..ce0084c65 100644
--- a/src/test/java/org/apache/commons/collections/FactoryUtilsTest.java
+++ b/src/test/java/org/apache/commons/collections/FactoryUtilsTest.java
@@ -218,6 +218,10 @@ public class FactoryUtilsTest extends junit.framework.TestCase {
 
     @SuppressWarnings("serial")
     public static class Mock2 implements Serializable {
+        /**
+         * Generated serial version ID.
+         */
+        private static final long serialVersionUID = 4899282162482588924L;
         private final Object iVal;
         public Mock2(final Object val) {
             iVal = val;
diff --git a/src/test/java/org/apache/commons/collections/buffer/BlockingBufferTest.java b/src/test/java/org/apache/commons/collections/buffer/BlockingBufferTest.java
index 121be3303..d0d8a4d97 100644
--- a/src/test/java/org/apache/commons/collections/buffer/BlockingBufferTest.java
+++ b/src/test/java/org/apache/commons/collections/buffer/BlockingBufferTest.java
@@ -529,6 +529,11 @@ public class BlockingBufferTest<E> extends AbstractObjectTest {
     @SuppressWarnings("serial")
     protected static class MyBuffer<E> extends LinkedList<E> implements Buffer<E> {
 
+        /**
+         * Generated serial version ID.
+         */
+        private static final long serialVersionUID = -1772433262105175184L;
+
         public E get() {
             if (isEmpty()) {
                 throw new BufferUnderflowException();
diff --git a/src/test/java/org/apache/commons/collections/comparators/ComparatorChainTest.java b/src/test/java/org/apache/commons/collections/comparators/ComparatorChainTest.java
index 389082c4f..51c2e4e01 100644
--- a/src/test/java/org/apache/commons/collections/comparators/ComparatorChainTest.java
+++ b/src/test/java/org/apache/commons/collections/comparators/ComparatorChainTest.java
@@ -131,6 +131,10 @@ public class ComparatorChainTest extends AbstractComparatorTest<ComparatorChainT
     @SuppressWarnings("serial")
     public static class PseudoRow implements Serializable {
 
+        /**
+         * Generated serial version ID.
+         */
+        private static final long serialVersionUID = 8085570439751032499L;
         public int cols[] = new int[3];
 
         public PseudoRow(final int col1, final int col2, final int col3) {
diff --git a/src/test/java/org/apache/commons/collections/list/SetUniqueListTest.java b/src/test/java/org/apache/commons/collections/list/SetUniqueListTest.java
index 689edae42..09f1110fb 100644
--- a/src/test/java/org/apache/commons/collections/list/SetUniqueListTest.java
+++ b/src/test/java/org/apache/commons/collections/list/SetUniqueListTest.java
@@ -616,6 +616,11 @@ public class SetUniqueListTest<E> extends AbstractListTest<E> {
 
     @SuppressWarnings("serial")
     class SetUniqueList307 extends SetUniqueList<E> {
+        /**
+         * Generated serial version ID.
+         */
+        private static final long serialVersionUID = 1415013031022962158L;
+
         public SetUniqueList307(final List<E> list, final Set<E> set) {
             super(list, set);
         }
diff --git a/src/test/java/org/apache/commons/collections/map/LRUMapTest.java b/src/test/java/org/apache/commons/collections/map/LRUMapTest.java
index e5fa50308..c1322f52f 100644
--- a/src/test/java/org/apache/commons/collections/map/LRUMapTest.java
+++ b/src/test/java/org/apache/commons/collections/map/LRUMapTest.java
@@ -253,6 +253,10 @@ public class LRUMapTest<K, V> extends AbstractOrderedMapTest<K, V> {
 
     @SuppressWarnings("serial")
     static class MockLRUMapSubclass<K, V> extends LRUMap<K, V> {
+        /**
+         * Generated serial version ID.
+         */
+        private static final long serialVersionUID = -2126883654452042477L;
         LinkEntry<K, V> entry;
         K key;
         V value;
@@ -304,6 +308,11 @@ public class LRUMapTest<K, V> extends AbstractOrderedMapTest<K, V> {
 
     @SuppressWarnings("serial")
     static class MockLRUMapSubclassBlocksRemove<K, V> extends LRUMap<K, V> {
+        /**
+         * Generated serial version ID.
+         */
+        private static final long serialVersionUID = 6278917461128992945L;
+
         MockLRUMapSubclassBlocksRemove(final int size, final boolean scanUntilRemove) {
             super(size, scanUntilRemove);
         }
@@ -332,6 +341,11 @@ public class LRUMapTest<K, V> extends AbstractOrderedMapTest<K, V> {
 
     @SuppressWarnings("serial")
     static class MockLRUMapSubclassFirstBlocksRemove<K, V> extends LRUMap<K, V> {
+        /**
+         * Generated serial version ID.
+         */
+        private static final long serialVersionUID = -6939790801702973428L;
+
         MockLRUMapSubclassFirstBlocksRemove(final int size) {
             super(size, true);
         }