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DATAMONGO-917 - Improve Spring 4.0 framework version detection to avoid NullPointerExceptions.

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We now check for the presence of DefaultParameterNameDiscoverer in order to determine if we are running with a Spring version later than 4.0 since this avoids potential NullPointerExceptions in cases where the package version information is not available e.g. in cases where the application was bundled into an uberjar e.g. via the maven-shade-plugin.

Original pull request: #173.
This commit is contained in:
Thomas Darimont
2014-04-23 14:48:20 +02:00
committed by Oliver Gierke
parent 72fe382bba
commit 72d645feae
1 changed files with 3 additions and 2 deletions
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5
spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/convert/DefaultDbRefResolver.java
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@@ -33,7 +33,6 @@ import org.springframework.cglib.proxy.Callback;
import org.springframework.cglib.proxy.Enhancer;
import org.springframework.cglib.proxy.Factory;
import org.springframework.cglib.proxy.MethodProxy;
import org.springframework.core.SpringVersion;
import org.springframework.dao.DataAccessException;
import org.springframework.dao.support.PersistenceExceptionTranslator;
import org.springframework.data.mongodb.LazyLoadingException;
@@ -382,7 +381,9 @@ public class DefaultDbRefResolver implements DbRefResolver {
*/
private static class ObjenesisProxyEnhancer {
private static final boolean IS_SPRING_4_OR_BETTER = SpringVersion.getVersion().startsWith("4");
private static final boolean IS_SPRING_4_OR_BETTER = ClassUtils.isPresent(
"org.springframework.core.DefaultParameterNameDiscoverer", null);
private static final InstanceCreatorStrategy INSTANCE_CREATOR;
static {