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WW-5622 perf(core): optimize Hibernate proxy detection when Hibernate is absent (#1649)

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Detect Hibernate availability once at class-load time via Class.forName()
and short-circuit all Hibernate-related methods immediately when absent.
This eliminates repeated LinkageError/NoClassDefFoundError exceptions
that cause significant performance degradation in applications without
Hibernate on the classpath.

Fixes https://issues.apache.org/jira/browse/WW-5622

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
Lukasz Lenart
2026-04-05 18:30:44 +02:00
committed by GitHub
parent 620fcbd152
commit d276b2dded
2 changed files with 36 additions and 2 deletions
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core/src/main/java/org/apache/struts2/util/ProxyUtil.java
+15 -1
View File
@@ -57,6 +57,17 @@ public class ProxyUtil {
private static final OgnlCache<Member, Boolean> isProxyMemberCache = new DefaultOgnlCacheFactory<Member, Boolean>(
CACHE_MAX_SIZE, OgnlCacheFactory.CacheType.BASIC, CACHE_INITIAL_CAPACITY).buildOgnlCache();
private static final boolean HIBERNATE_AVAILABLE = isHibernateAvailable();
private static boolean isHibernateAvailable() {
try {
Class.forName("org.hibernate.proxy.HibernateProxy");
return true;
} catch (ClassNotFoundException e) {
return false;
}
}
/**
* Determine the ultimate target class of the given instance, traversing
* not only a top-level proxy but any number of nested proxies as well &mdash;
@@ -121,8 +132,9 @@ public class ProxyUtil {
*/
@Deprecated(since = "7.2")
public static boolean isHibernateProxy(Object object) {
if (!HIBERNATE_AVAILABLE || object == null) return false;
try {
return object != null && HibernateProxy.class.isAssignableFrom(object.getClass());
return HibernateProxy.class.isAssignableFrom(object.getClass());
} catch (LinkageError ignored) {
return false;
}
@@ -137,6 +149,7 @@ public class ProxyUtil {
*/
@Deprecated(since = "7.2")
public static boolean isHibernateProxyMember(Member member) {
if (!HIBERNATE_AVAILABLE) return false;
try {
return hasMember(HibernateProxy.class, member);
} catch (LinkageError ignored) {
@@ -220,6 +233,7 @@ public class ProxyUtil {
*/
@Deprecated(since = "7.2")
public static Object getHibernateProxyTarget(Object object) {
if (!HIBERNATE_AVAILABLE) return object;
try {
return Hibernate.unproxy(object);
} catch (LinkageError ignored) {
core/src/main/java/org/apache/struts2/util/StrutsProxyService.java
+21 -1
View File
@@ -48,6 +48,17 @@ import static java.lang.reflect.Modifier.isStatic;
*/
public class StrutsProxyService implements ProxyService {
private static final boolean HIBERNATE_AVAILABLE = isHibernateAvailable();
private static boolean isHibernateAvailable() {
try {
Class.forName("org.hibernate.proxy.HibernateProxy");
return true;
} catch (ClassNotFoundException e) {
return false;
}
}
private final OgnlCache<Class<?>, Boolean> isProxyCache;
private final OgnlCache<Member, Boolean> isProxyMemberCache;
@@ -90,8 +101,11 @@ public class StrutsProxyService implements ProxyService {
@Override
public boolean isHibernateProxy(Object object) {
if (!HIBERNATE_AVAILABLE || object == null) {
return false;
}
try {
return object != null && HibernateProxy.class.isAssignableFrom(object.getClass());
return HibernateProxy.class.isAssignableFrom(object.getClass());
} catch (LinkageError ignored) {
return false;
}
@@ -99,6 +113,9 @@ public class StrutsProxyService implements ProxyService {
@Override
public boolean isHibernateProxyMember(Member member) {
if (!HIBERNATE_AVAILABLE) {
return false;
}
try {
return hasMember(HibernateProxy.class, member);
} catch (LinkageError ignored) {
@@ -108,6 +125,9 @@ public class StrutsProxyService implements ProxyService {
@Override
public Object getHibernateProxyTarget(Object object) {
if (!HIBERNATE_AVAILABLE) {
return object;
}
try {
return Hibernate.unproxy(object);
} catch (LinkageError ignored) {