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Nullability fine-tuning based on IntelliJ IDEA 2018.3 inspection

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Issue: SPR-15540

(cherry picked from commit bf272b0b21)
This commit is contained in:
Juergen Hoeller
2018-11-22 16:12:38 +01:00
parent 23d1049363
commit e6c979606c
12 changed files with 87 additions and 85 deletions
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6
spring-tx/src/main/java/org/springframework/transaction/jta/JtaTransactionManager.java
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@@ -709,7 +709,7 @@ public class JtaTransactionManager extends AbstractPlatformTransactionManager
* @see #FALLBACK_TRANSACTION_MANAGER_NAMES
*/
@Nullable
protected TransactionManager findTransactionManager(UserTransaction ut) {
protected TransactionManager findTransactionManager(@Nullable UserTransaction ut) {
if (ut instanceof TransactionManager) {
if (logger.isDebugEnabled()) {
logger.debug("JTA UserTransaction object [" + ut + "] implements TransactionManager");
@@ -864,7 +864,7 @@ public class JtaTransactionManager extends AbstractPlatformTransactionManager
* <p>Calls {@code applyIsolationLevel} and {@code applyTimeout}
* before invoking the UserTransaction's {@code begin} method.
* @param txObject the JtaTransactionObject containing the UserTransaction
* @param definition TransactionDefinition instance, describing propagation
* @param definition the TransactionDefinition instance, describing propagation
* behavior, isolation level, read-only flag, timeout, and transaction name
* @throws NotSupportedException if thrown by JTA methods
* @throws SystemException if thrown by JTA methods
@@ -1139,7 +1139,7 @@ public class JtaTransactionManager extends AbstractPlatformTransactionManager
* If none of the two is available, a warning will be logged.
* <p>Can be overridden in subclasses, for specific JTA implementations.
* @param txObject the current transaction object
* @param synchronizations List of TransactionSynchronization objects
* @param synchronizations a List of TransactionSynchronization objects
* @throws RollbackException if thrown by JTA methods
* @throws SystemException if thrown by JTA methods
* @see #getTransactionManager()