Hi, Looking for a reviewer for 8134426 This change adds a serialVersionUID field to the required javax.transaction classes as well as some basic tests. Once approved, I will work to push the same changes to the relevant JTA project working with the Java EE team output from serialver: ---------------- jdk 1.6 (OSX) serialver -classpath classes.jar javax.transaction.InvalidTransactionException javax.transaction.InvalidTransactionException: private static final long serialVersionUID = 3597320220337691496L; ljanders-mac:Classes ljanders$ serialver -classpath classes.jar javax.transaction.TransactionRequiredException javax.transaction.TransactionRequiredException: private static final long serialVersionUID = -1898806419937446439L; ljanders-mac:Classes ljanders$ serialver -classpath classes.jar javax.transaction.TransactionRolledbackException javax.transaction.TransactionRolledbackException: private static final long serialVersionUID = -3142798139623020577L; java ee 6 serialver -classpath javaee.jar javax.transaction.InvalidTransactionException javax.transaction.InvalidTransactionException: private static final long serialVersionUID = 3597320220337691496L; ljanders-mac:lib ljanders$ serialver -classpath javaee.jar javax.transaction.TransactionRequiredException javax.transaction.TransactionRequiredException: private static final long serialVersionUID = -1898806419937446439L; ljanders-mac:lib ljanders$ serialver -classpath javaee.jar javax.transaction.TransactionRolledbackException javax.transaction.TransactionRolledbackException: private static final long serialVersionUID = -3142798139623020577L; --------------- The webrev can be found at http://cr.openjdk.java.net/~lancea/8134426/webrev/. Also waiting on a JPRT run to complete to verify tests run outside of my environment. Best Lance Lance Andersen| Principal Member of Technical Staff | +1.781.442.2037 Oracle Java Engineering 1 Network Drive Burlington, MA 01803 Lance.Andersen@oracle.com