【发布时间】：2023-01-13 09:24:46
【问题描述】：
我只有在收集 JPA 结果时才有异常：
03-Dec-2022 12:29:22.546 SEVERE [SMTP Server Worker (rm-2)] de.e_nexus.server.mail.DefaultSMTPServer$SMTPConnectionWorker$TransportSocket.<init> Created transport socket: a48fc8d5-8cf0-4c9f-88d2-201a47621987 using Socket[addr=/194.50.69.4,port=35600,localport=25]
Exception in thread "Thread-27" java.lang.IllegalMonitorStateException
at java.base/java.util.concurrent.locks.ReentrantLock$Sync.tryRelease(ReentrantLock.java:175)
at java.base/java.util.concurrent.locks.AbstractQueuedSynchronizer.release(AbstractQueuedSynchronizer.java:1007)
at java.base/java.util.concurrent.locks.ReentrantLock.unlock(ReentrantLock.java:494)
at org.apache.tomcat.dbcp.pool2.impl.LinkedBlockingDeque.takeFirst(LinkedBlockingDeque.java:598)
at org.apache.tomcat.dbcp.pool2.impl.GenericObjectPool.borrowObject(GenericObjectPool.java:436)
at org.apache.tomcat.dbcp.pool2.impl.GenericObjectPool.borrowObject(GenericObjectPool.java:353)
at org.apache.tomcat.dbcp.dbcp2.PoolingDataSource.getConnection(PoolingDataSource.java:134)
at org.apache.tomcat.dbcp.dbcp2.BasicDataSource.getConnection(BasicDataSource.java:753)
at org.hibernate.engine.jdbc.connections.internal.DatasourceConnectionProviderImpl.getConnection(DatasourceConnectionProviderImpl.java:122)
at org.hibernate.internal.NonContextualJdbcConnectionAccess.obtainConnection(NonContextualJdbcConnectionAccess.java:38)
at org.hibernate.resource.jdbc.internal.LogicalConnectionManagedImpl.acquireConnectionIfNeeded(LogicalConnectionManagedImpl.java:108)
at org.hibernate.resource.jdbc.internal.LogicalConnectionManagedImpl.getPhysicalConnection(LogicalConnectionManagedImpl.java:138)
at org.hibernate.engine.jdbc.internal.StatementPreparerImpl.connection(StatementPreparerImpl.java:50)
at org.hibernate.engine.jdbc.internal.StatementPreparerImpl$5.doPrepare(StatementPreparerImpl.java:149)
at org.hibernate.engine.jdbc.internal.StatementPreparerImpl$StatementPreparationTemplate.prepareStatement(StatementPreparerImpl.java:176)
at org.hibernate.engine.jdbc.internal.StatementPreparerImpl.prepareQueryStatement(StatementPreparerImpl.java:151)
at org.hibernate.loader.Loader.prepareQueryStatement(Loader.java:2103)
at org.hibernate.loader.Loader.executeQueryStatement(Loader.java:2040)
at org.hibernate.loader.Loader.executeQueryStatement(Loader.java:2018)
at org.hibernate.loader.Loader.doQuery(Loader.java:948)
at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:349)
at org.hibernate.loader.Loader.doList(Loader.java:2849)
at org.hibernate.loader.Loader.doList(Loader.java:2831)
at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2663)
at org.hibernate.loader.Loader.list(Loader.java:2658)
at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:506)
at org.hibernate.hql.internal.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:400)
at org.hibernate.engine.query.spi.HQLQueryPlan.performList(HQLQueryPlan.java:219)
at org.hibernate.internal.SessionImpl.list(SessionImpl.java:1414)
at org.hibernate.query.internal.AbstractProducedQuery.doList(AbstractProducedQuery.java:1625)
at org.hibernate.query.internal.AbstractProducedQuery.list(AbstractProducedQuery.java:1593)
at org.hibernate.query.Query.getResultList(Query.java:165)
at jdk.internal.reflect.GeneratedMethodAccessor4243.invoke(Unknown Source)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:568)
at org.springframework.orm.jpa.SharedEntityManagerCreator$DeferredQueryInvocationHandler.invoke(SharedEntityManagerCreator.java:402)
at jdk.proxy11/jdk.proxy11.$Proxy799.getResultList(Unknown Source)
at de.e_nexus.web.rm.mail.veto.dnsbl.DNSBlackList.veto(DNSBlackList.java:39)
at de.e_nexus.web.rm.mail.veto.dnsbl.DNSBlackList.veto(DNSBlackList.java:29)
at de.e_nexus.utils.VetoCouncil$1.ask(VetoCouncil.java:87)
at de.e_nexus.utils.VetoCouncil$1Survey.run(VetoCouncil.java:73)
这是类：
/* ___ _
* | _ \___| |___ __ _ ___ ___ Copyright 2016
* | / -_) / -_) _` (_-</ -_) https://www.e-nexus.de./
* |_|_\___|_\___\__,_/__/\___| by Peter Rader _
* | \/ |__ _ _ _ __ _ __ _ ___ _ __ ___ _ _| |_
* | |\/| / _` | ' \/ _` / _` / -_) ' \/ -_) ' \ _|
* |_| |_\__,_|_||_\__,_\__, \___|_|_|_\___|_||_\__|
* All rights reserved |___/
*/
package de.e_nexus.web.rm.mail.veto.dnsbl;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.inject.Named;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import org.xbill.DNS.ARecord;
import org.xbill.DNS.Lookup;
import org.xbill.DNS.Record;
import org.xbill.DNS.Type;
import de.e_nexus.server.mail.AllowConnection;
import de.e_nexus.server.mail.VetoConnection;
import de.e_nexus.web.rm.entity.DNSBlacklistService;
@Named
public class DNSBlackList implements VetoConnection {
@PersistenceContext
private final EntityManager entityManager = null;
public static final Logger LOG = Logger.getLogger(DNSBlackList.class.getCanonicalName());
@Override
public boolean veto(final AllowConnection plan) {
List<DNSBlacklistService> blacklistServices = entityManager.createQuery("FROM " + DNSBlacklistService.class.getCanonicalName(), DNSBlacklistService.class)
.getResultList(); // <-- this is line 39
String hostName = plan.getIncommingIP().getHostName();
LOG.finer("Ask for host: " + hostName);
for (DNSBlacklistService dnsBlacklistService : blacklistServices) {
try {
String url = hostName + "." + dnsBlacklistService.getDomainName();
LOG.fine("Ask url: " + url);
Lookup lookup = new Lookup(url, Type.ANY);
Record[] run = lookup.run();
if (run != null) {
for (Record r : run) {
if (r instanceof ARecord) {
plan.setMessage("Your a spammer said " + dnsBlacklistService.getDomainName() + "!");
LOG.warning("Service " + dnsBlacklistService.getDomainName() + " said " + plan.getIncommingIP() + " is spammer!");
return true;
}
}
}
} catch (Exception e) {
LOG.log(Level.INFO, "Cant ask DNSBL", e);
}
}
return false;
}
}
【问题讨论】：
-
您使用的是什么版本的 tomcat、hibernate、java？另外，该代码是否在事务中运行？