Liferay 6.2迁移上的内存泄漏
[英]Memory leak on Liferay 6.2 migration
问题描述
我已经从Liferay 6.1.1-ce-ga2迁移了Liferay 6.2-CE-GA2服务器。
我对自定义挂钩和主题进行了一些更改，以适应新版本。
在区域设置中，我从未遇到过内存或6.1版本的问题，但是一旦投入生产，服务器就会在几个小时内耗尽内存。
我尝试调整堆参数并增加服务器内存（从2GB到3GB），但似乎堆一直在缓慢增长，但一直没有停止，直到得到OutOfMemory: Java heap space或者，如果我给堆赋予更大的限制，系统内存不足。
我花了几天的时间研究catalina.out，试图最大程度地减少警告和错误，这是我在关机重新引导过程中看到的唯一有趣的事情（我替换了日志中的所有域名）：
[on shutdown]
WARN: The method class org.apache.commons.logging.impl.SLF4JLogFactory#release() was invoked.
WARN: Please see http://www.slf4j.org/codes.html#release for an explanation.
[...]
28-xul-2014 16:53:51 org.apache.catalina.loader.WebappClassLoader clearReferencesThreads
SEVERE: The web application [] appears to have started a thread named [org.python.google.common.base.internal.Finalizer] but has failed to stop it. This is very likely to create a memory leak.
28-xul-2014 16:53:51 org.apache.catalina.loader.WebappClassLoader clearReferencesThreads
SEVERE: The web application [] appears to have started a thread named [Thread-26] but has failed to stop it. This is very likely to create a memory leak.
28-xul-2014 16:53:51 org.apache.catalina.loader.WebappClassLoader clearReferencesThreads
SEVERE: The web application [] appears to have started a thread named [Thread-27] but has failed to stop it. This is very likely to create a memory leak.
[...]
16:55:40,517 ERROR [liferay/hot_deploy-1][JDBCExceptionReporter:82] Batch entry 0 insert into CalendarBooking (uuid_, groupId, companyId, userId, userName, createDate, modifiedDate, resourceBlockId, calendarId, calendarResourceId, parentCalendarBookingId, title, description, location, startTime, endTime, allDay, recurrence, firstReminder, firstReminderType, secondReminder, secondReminderType, status, statusByUserId, statusByUserName, statusDate, calendarBookingId) values ('985aac08-6457-484c-becb-2c4964805158', '10545', '10154', '10196', 'Carlos Ces', '2012-06-06 06:26:41.431000 +01:00:00', '2012-06-06 06:26:41.431000 +01:00:00', '0', '550617', '550571', '565201', 'Master Class de improvisación e tango contemporáneo con Jorge Retamoza', '<p>_ <a href="http://www.rrrrrr.es/cultura/-/blogs/master-class-de-improvisacion-e-tango-contemporaneo-con-jorge-retamoza">Master Class con Jorge Retamoza. </a></p>_<p>_ <a href="http://www.rrrrrr.es/cultura/-/blogs/master-class-de-improvisacion-e-tango-contemporaneo-con-jorge-retamoza">Organiza: Escola de Música de rrrrrr. Colabora: Concello de rrrrrr.</a></p>', 'Auditorio de rrrrrr', '1339246800000', '1339257600000', '0', '', '900000', 'email', '300000', 'email', '0', '10196', 'Carlos Ces', '2012-06-06 06:26:41.431000 +01:00:00', '565201') was aborted. Call getNextException to see the cause. [Sanitized]
16:55:40,518 ERROR [liferay/hot_deploy-1][JDBCExceptionReporter:82] ERROR: duplicate key value violates unique constraint "ix_f4c61797"
16:55:40,536 ERROR [liferay/hot_deploy-1][SerialDestination:68] Unable to process message {destinationName=liferay/hot_deploy, response=null, responseDestinationName=null, responseId=null, payload=null, values={command=deploy, companyId=0, servletContextName=calendar-portlet}}
com.liferay.portal.kernel.messaging.MessageListenerException: com.liferay.portal.kernel.dao.orm.ORMException: org.hibernate.exception.ConstraintViolationException: Could not execute JDBC batch update
at com.liferay.portal.kernel.messaging.BaseMessageListener.receive(BaseMessageListener.java:32)
at com.liferay.portal.kernel.messaging.InvokerMessageListener.receive(InvokerMessageListener.java:72)
at com.liferay.portal.kernel.messaging.SerialDestination$1.run(SerialDestination.java:65)
at com.liferay.portal.kernel.concurrent.ThreadPoolExecutor$WorkerTask._runTask(ThreadPoolExecutor.java:682)
at com.liferay.portal.kernel.concurrent.ThreadPoolExecutor$WorkerTask.run(ThreadPoolExecutor.java:593)
at java.lang.Thread.run(Thread.java:636)
Caused by: com.liferay.portal.kernel.dao.orm.ORMException: org.hibernate.exception.ConstraintViolationException: Could not execute JDBC batch update
[...]
... 5 more
Caused by: org.hibernate.exception.ConstraintViolationException: Could not execute JDBC batch update
at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:96)
at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66)
[...]
... 62 more
Caused by: java.sql.BatchUpdateException: Batch entry 0 insert into CalendarBooking (uuid_, groupId, companyId, userId, userName, createDate, modifiedDate, resourceBlockId, calendarId, calendarResourceId, parentCalendarBookingId, title, description, location, startTime, endTime, allDay, recurrence, firstReminder, firstReminderType, secondReminder, secondReminderType, status, statusByUserId, statusByUserName, statusDate, calendarBookingId) values ('985aac08-6457-484c-becb-2c4964805158', '10545', '10154', '10196', 'Carlos Ces', '2012-06-06 06:26:41.431000 +01:00:00', '2012-06-06 06:26:41.431000 +01:00:00', '0', '550617', '550571', '565201', 'Master Class de improvisación e tango contemporáneo con Jorge Retamoza', '<p>_ <a href="http://www.rrrrrr.es/cultura/-/blogs/master-class-de-improvisacion-e-tango-contemporaneo-con-jorge-retamoza">Master Class con Jorge Retamoza. </a></p>_<p>_ <a href="http://www.rrrrrr.es/cultura/-/blogs/master-class-de-improvisacion-e-tango-contemporaneo-con-jorge-retamoza">Organiza: Escola de Música de rrrrrr. Colabora: Concello de rrrrrr.</a></p>', 'Auditorio de rrrrrr', '1339246800000', '1339257600000', '0', '', '900000', 'email', '300000', 'email', '0', '10196', 'Carlos Ces', '2012-06-06 06:26:41.431000 +01:00:00', '565201') was aborted. Call getNextException to see the cause. [Sanitized]
at org.postgresql.jdbc2.AbstractJdbc2Statement$BatchResultHandler.handleError(AbstractJdbc2Statement.java:2621)
at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1837)
[...]
... 68 more
然后服务器正常运行5小时，每隔几分钟发出一些备用警告：
23:39:09,275 WARN [ajp-apr-8009-exec-20][SecurityPortletContainerWrapper:623] Reject process action for http://www.rrrrrr.com/rrrrrr25n/notadeprensa on 56_INSTANCE_rk7ADlb9Ui2w
23:43:51,234 WARN [ajp-apr-8009-exec-19][SecurityPortletContainerWrapper:623] Reject process action for http://www.rrrrrr.org/feiron/normas on 56_INSTANCE_jh6ewEPuvvjb
23:46:59,568 WARN [ajp-apr-8009-exec-5][SecurityPortletContainerWrapper:623] Reject process action for http://www.rrrrrr.es/recursos-servizossociais on 56_INSTANCE_4eX2GzETiAQb
23:55:51,177 WARN [ajp-apr-8009-exec-5][SecurityPortletContainerWrapper:623] Reject process action for http://www.rrrrrr.es/cans on 56_INSTANCE_4eX2GzETiAQb
00:00:13,713 WARN [ajp-apr-8009-exec-24][SecurityPortletContainerWrapper:623] Reject process action for http://www.rrrrrr.es/rexistro on 56_INSTANCE_4eX2GzETiAQb
00:00:25,822 WARN [ajp-apr-8009-exec-24][SecurityPortletContainerWrapper:623] Reject process action for http://www.rrrrrr.es/plenos on 110_INSTANCE_acNEFnslrX8c
然后开始出现内存问题。 我在日志中发布了第一个错误：
Exception in thread "http-apr-8080-exec-4" java.lang.OutOfMemoryError: Java heap space
01:00:01,223 ERROR [MemoryQuartzSchedulerEngineInstance_Worker-3][SimpleThreadPool:120] Error while executing the Runnable:
java.lang.OutOfMemoryError: Java heap space
Exception in thread "fileinstall-/home/rrrrrr/liferay-portal-6.2-ce-ga2/data/osgi/modules" Exception in thread "ajp-apr-8009-AsyncTimeout" Exception in thread "ajp-apr-8009-exec-21" at java.util.LinkedHashMap.createEntry(LinkedHashMap.java:441)
at java.util.LinkedHashMap.addEntry(LinkedHashMap.java:423)
at java.util.HashMap.put(HashMap.java:402)
Exception in thread "ajp-apr-8009-exec-24" at sun.util.resources.OpenListResourceBundle.loadLookup(OpenListResourceBundle.java:134)
Exception in thread "MemoryQuartzSchedulerEngineInstance_QuartzSchedulerThread" Exception in thread "ContainerBackgroundProcessor[StandardEngine[Catalina]]" at sun.util.resources.OpenListResourceBundle.loadLookupTablesIfNecessary(OpenListResourceBundle.java:113)
Exception in thread "ajp-apr-8009-exec-35" Exception in thread "ajp-apr-8009-exec-36" Exception in thread "ajp-apr-8009-exec-29" Exception in thread "ajp-apr-8009-exec-37" at sun.util.resources.OpenListResourceBundle.handleGetKeys(OpenListResourceBundle.java:91)
at sun.util.LocaleServiceProviderPool.getLocalizedObjectImpl(LocaleServiceProviderPool.java:353)
Exception in thread "ajp-apr-8009-exec-33" Exception in thread "ajp-apr-8009-exec-34" Exception in thread "ajp-apr-8009-exec-30" at sun.util.LocaleServiceProviderPool.getLocalizedObject(LocaleServiceProviderPool.java:284)
Exception in thread "ajp-apr-8009-exec-28" Exception in thread "ajp-apr-8009-exec-31" Exception in thread "http-apr-8080-AsyncTimeout" Exception in thread "http-apr-8080-exec-5" Exception in thread "http-apr-8080-exec-2" Exception in thread "liferay/scheduler_dispatch-3" Exception in thread "ajp-apr-8009-exec-41" at sun.util.TimeZoneNameUtility.retrieveDisplayNames(TimeZoneNameUtility.java:111)
at sun.util.TimeZoneNameUtility.retrieveDisplayNames(TimeZoneNameUtility.java:99)
at java.util.TimeZone.getDisplayNames(TimeZone.java:418)
at java.util.TimeZone.getDisplayName(TimeZone.java:369)
at java.text.SimpleDateFormat.subFormat(SimpleDateFormat.java:1110)
at java.text.SimpleDateFormat.format(SimpleDateFormat.java:899)
at java.text.SimpleDateFormat.format(SimpleDateFormat.java:869)
at org.apache.tomcat.util.http.ServerCookie.appendCookieValue(ServerCookie.java:254)
at org.apache.catalina.connector.Response.generateCookieString(Response.java:1032)
at org.apache.catalina.connector.Response.addCookie(Response.java:974)
at org.apache.catalina.connector.ResponseFacade.addCookie(ResponseFacade.java:381)
at javax.servlet.http.HttpServletResponseWrapper.addCookie(HttpServletResponseWrapper.java:58)
at com.liferay.portal.kernel.servlet.HttpOnlyCookieServletResponse.addCookie(HttpOnlyCookieServletResponse.java:62)
at javax.servlet.http.HttpServletResponseWrapper.addCookie(HttpServletResponseWrapper.java:58)
at javax.servlet.http.HttpServletResponseWrapper.addCookie(HttpServletResponseWrapper.java:58)
at javax.servlet.http.HttpServletResponseWrapper.addCookie(HttpServletResponseWrapper.java:58)
at com.liferay.portal.kernel.servlet.MetaInfoCacheServletResponse.addCookie(MetaInfoCacheServletResponse.java:128)
at javax.servlet.http.HttpServletResponseWrapper.addCookie(HttpServletResponseWrapper.java:58)
at com.liferay.portal.kernel.servlet.MetaInfoCacheServletResponse.addCookie(MetaInfoCacheServletResponse.java:128)
01:02:56,362 ERROR [PersistedQuartzSchedulerEngineInstance_QuartzSchedulerThread][ErrorLogger:120] An error occurred while scanning for the next triggers to fire.
org.quartz.JobPersistenceException: Failed to obtain DB connection from data source 'ds': java.lang.OutOfMemoryError: Java heap space [See nested exception: java.lang.OutOfMemoryError: Java heap space]
at org.quartz.impl.jdbcjobstore.JobStoreSupport.getConnection(JobStoreSupport.java:771)
at org.quartz.impl.jdbcjobstore.JobStoreTX.getNonManagedTXConnection(JobStoreTX.java:71)
at org.quartz.impl.jdbcjobstore.JobStoreSupport.executeInNonManagedTXLock(JobStoreSupport.java:3808)
at org.quartz.impl.jdbcjobstore.JobStoreSupport.acquireNextTriggers(JobStoreSupport.java:2751)
at org.quartz.core.QuartzSchedulerThread.run(QuartzSchedulerThread.java:264)
Caused by: java.lang.OutOfMemoryError: Java heap space
at javax.servlet.http.HttpServletResponseWrapper.addCookie(HttpServletResponseWrapper.java:58)
at com.liferay.portal.kernel.servlet.MetaInfoCacheServletResponse.addCookie(MetaInfoCacheServletResponse.java:128)
at com.liferay.portal.kernel.util.CookieKeys.addCookie(CookieKeys.java:99)
at com.liferay.portal.kernel.util.CookieKeys.addCookie(CookieKeys.java:63)
at com.liferay.portal.language.LanguageImpl.updateCookie(LanguageImpl.java:751)
java.lang.OutOfMemoryError: Java heap space
java.lang.OutOfMemoryError: Java heap space
java.lang.OutOfMemoryError: Java heap space
java.lang.OutOfMemoryError: Java heap space
java.lang.OutOfMemoryError: Java heap space
01:03:00,917 ERROR [QuartzScheduler_PersistedQuartzSchedulerEngineInstance-NON_CLUSTERED_MisfireHandler][PortalJobStore:120] MisfireHandler: Error handling misfires: Unexpected runtime exception: Index: 0, Size: 0
org.quartz.JobPersistenceException: Unexpected runtime exception: Index: 0, Size: 0 [See nested exception: java.lang.IndexOutOfBoundsException: Index: 0, Size: 0]
at org.quartz.impl.jdbcjobstore.JobStoreSupport.doRecoverMisfires(JobStoreSupport.java:3200)
at org.quartz.impl.jdbcjobstore.JobStoreSupport$MisfireHandler.manage(JobStoreSupport.java:3947)
at org.quartz.impl.jdbcjobstore.JobStoreSupport$MisfireHandler.run(JobStoreSupport.java:3968)
Caused by: java.lang.IndexOutOfBoundsException: Index: 0, Size: 0
at java.util.ArrayList.rangeCheck(ArrayList.java:571)
at java.util.ArrayList.get(ArrayList.java:349)
at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1689)
at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:257)
at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:512)
at org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2Statement.java:388)
at org.postgresql.jdbc2.AbstractJdbc2Statement.executeQuery(AbstractJdbc2Statement.java:273)
at org.quartz.impl.jdbcjobstore.StdJDBCDelegate.countMisfiredTriggersInState(StdJDBCDelegate.java:416)
at org.quartz.impl.jdbcjobstore.JobStoreSupport.doRecoverMisfires(JobStoreSupport.java:3176)
... 2 more
java.lang.OutOfMemoryError: Java heap space
java.lang.OutOfMemoryError: Java heap space
Exception in thread "fileinstall-/home/rrrrrr/liferay-portal-6.2-ce-ga2/data/osgi/portal" java.lang.OutOfMemoryError: Java heap space
java.lang.OutOfMemoryError: Java heap space
java.lang.OutOfMemoryError: Java heap space
java.lang.OutOfMemoryError: Java heap space
java.lang.OutOfMemoryError: Java heap space
java.lang.OutOfMemoryError: Java heap space
java.lang.OutOfMemoryError: Java heap space
java.lang.OutOfMemoryError: Java heap space
java.lang.OutOfMemoryError: Java heap space
java.lang.OutOfMemoryError: Java heap space
java.lang.OutOfMemoryError: Java heap space
java.lang.OutOfMemoryError: Java heap space
我现在发布了一些自定义主题和挂钩。 我想知道它们上的任何地方都必须有内存泄漏，但是我找不到它。
首先，我有一个针对博客的自定义Application Display Template ：
<div class="cr-blog container-fluid">
#foreach ($entry in $entries)
<div class="entry-content">
#set ($viewUrl = $currentURL.replaceFirst("\?.*$","") + "/-/blogs/" + $entry.getUrlTitle())
#set($img_ini=$entry.content.indexOf("<img"))
#if ($img_ini >= 0)
#set($img_end=$entry.content.indexOf(">",$img_ini) + 1)
#set($first_img_tag= $entry.content.substring($img_ini, $img_end))
#set($first_img_url=$first_img_tag.replaceFirst("<img.*src=\"",""))
#set($first_img_url=$first_img_url.replaceFirst("\".*",""))
#end
<div class="entry-extract">
#if ($img_ini >= 0)
<div class="extract-thumbnail">
<a href="$viewUrl">
<img src="$escapeTool.html($first_img_url)" />
</a>
</div>
#end
<div class="extract-title">
<a href="$viewUrl"><span>$entry.title</span></a>
</div>
<div class="extract-content">
<a href="$viewUrl">
<span class="extract-date">$dateFormats.getSimpleDateFormat("dd MMMMM yyyy HH:mm", $locale).format($entry.displayDate)</span>
#set($plain_content = $entry.content.replaceAll("</?[^>]+/?>", ""))
#set($res_length = 240)
#if ($res_length > $plain_content.length())
#set($res_length = $plain_content.length())
#end
<p>
$plain_content.substring(0,$res_length) ...
</p>
</a>
</div>
</div>
</div>
#end
</div>
自定义钩子Blogshome会覆盖blogs_aggregator中的一些jsps。
view_entries.jspf
<c:choose>
<c:when test="<%= results.isEmpty() %>">
<liferay-ui:message key="there-are-no-blogs" />
<br /><br />
</c:when>
<c:otherwise>
<%
if (displayStyle.startsWith("extract-side-events")) {
List<BlogsEntry> eventsColumn = new ArrayList<BlogsEntry>();
List<BlogsEntry> mainColumn = new ArrayList<BlogsEntry>();
for (int i=0; i< results.size(); i++) {
BlogsEntry entry = (BlogsEntry) results.get(i);
if (entry.getDisplayDate().after(new Date())) {
searchContainer.setTotal(searchContainer.getTotal() - 1);
continue;
}
boolean isEvent = ((Boolean) entry.getExpandoBridge().getAttribute("evento"));
if (isEvent) eventsColumn.add(entry);
mainColumn.add(entry); /* change: add ALL to mainColumn; events are duplicated on side */
}
/* reorder eventsColumn */
TreeMap<Date, BlogsEntry> next= new TreeMap<Date, BlogsEntry>();
List<BlogsEntry> toRemove = new ArrayList<BlogsEntry>();
for (BlogsEntry entry: eventsColumn) {
Date ini = (Date) entry.getExpandoBridge().getAttribute("evento-inicio");
Date end = (Date) entry.getExpandoBridge().getAttribute("evento-remate");
Date now = new Date();
if (ini.before(now) && (end.after(now))) {
next.put(end, entry);
/* mainColumn.remove(entry); */
} else if (end.before(now)) {
toRemove.add(entry);
} else {
next.put(ini, entry);
/* mainColumn.remove(entry); */
}
}
eventsColumn.removeAll(toRemove);
/* third rearrangement: current & next are visible; past are pushed to mainColumn */
/* current ordered by end; next ordered by ini */
ArrayList<BlogsEntry> lNext = new ArrayList<BlogsEntry>(next.values());
%> <div class="home-events">
<div class="events-showdown" id="events-showdown">
<%
if (!lNext.isEmpty()) {
for (BlogsEntry entry: lNext) {
%>
<div class="carousel-item">
<%@ include file="/html/portlet/blogs_aggregator/view_entry_extract.jspf" %>
</div>
<%
}
}
%>
</div>
<script>
YUI().use('aui-carousel', function(Y) { new Y.Carousel( {contentBox: '#events-showdown',
height: 320, width: 600, intervalTime: 5 }).render(); });
</script>
<%--
<div class="home-events-nav">
<button type="button" class="btn btn-default btn-large"
onclick="document.getElementById('events-showdown').style.right =50">
<span class="glyphicon glyphicon-chevron-right"></span>
</button>
</div>
--%>
</div> <%
%> <div class="home-blogs container-fluid" > <%
for (BlogsEntry entry: mainColumn) {
%>
<%@ include file="/html/portlet/blogs_aggregator/view_entry_extract.jspf" %>
<%
}
%> </div> <%
/* original blogs styles */
} else {
for (int i = 0; i < results.size(); i++) {
BlogsEntry entry = (BlogsEntry)results.get(i);
if (entry.getDisplayDate().after(new Date())) {
searchContainer.setTotal(searchContainer.getTotal() - 1);
continue;
}
%>
<%@ include file="/html/portlet/blogs_aggregator/view_entry_content.jspf" %>
<%
}
}
%>
</c:otherwise>
</c:choose>
<c:if test="<%= enableRssSubscription %>">
<%
StringBundler rssURLParams = new StringBundler();
if (selectionMethod.equals("users")) {
if (organizationId > 0) {
rssURLParams.append("&organizationId=");
rssURLParams.append(organizationId);
}
else {
rssURLParams.append("&companyId=");
rssURLParams.append(company.getCompanyId());
}
}
else {
rssURLParams.append("&groupId=");
rssURLParams.append(themeDisplay.getScopeGroupId());
}
%>
<span class="button">
<liferay-ui:icon
image="rss"
label="<%= true %>"
method="get"
target="_blank"
url='<%= themeDisplay.getPathMain() + "/blogs_aggregator/rss?p_l_id=" + plid + rssURLParams %>'
/>
</span>
</c:if>
<c:if test="<%= !results.isEmpty() %>">
<div class="search-container">
<liferay-ui:search-paginator searchContainer="<%= searchContainer %>" />
</div>
</c:if>
view_entry_extract.jspf
<c:if test="<%= BlogsEntryPermission.contains(permissionChecker, entry, ActionKeys.VIEW) %>">
<div class="entry-content">
<%
PortletURL showBlogEntryURL = renderResponse.createRenderURL();
showBlogEntryURL.setParameter("struts_action", "/blogs_aggregator/view_entry");
showBlogEntryURL.setParameter("entryId", String.valueOf(entry.getEntryId()));
StringBundler sb = new StringBundler(8);
StringBundler ab = new StringBundler(8);
ab.append(themeDisplay.getURLPortal());
ab.append(GroupLocalServiceUtil.getGroup(entry.getGroupId()).getFriendlyURL());
ab.append("/-/blogs/");
ab.append(entry.getUrlTitle());
String viewEntryURL = ab.toString();
sb.append("&showAllEntries=1");
String viewAllEntriesURL = sb.toString();
User user2 = UserLocalServiceUtil.getUserById(entry.getUserId());
%>
<div class="entry-header">
<c:if test='<%= (Boolean) entry.getExpandoBridge().getAttribute("evento")%>'>
<div class="event-schedule">
<%
Calendar iniDate = com.liferay.portal.kernel.util.CalendarFactoryUtil.getCalendar(timeZone);
Calendar endDate = com.liferay.portal.kernel.util.CalendarFactoryUtil.getCalendar(timeZone);
iniDate.setTime(((Date) entry.getExpandoBridge().getAttribute("evento-inicio")));
endDate.setTime(((Date) entry.getExpandoBridge().getAttribute("evento-remate")));
boolean sameDay = false;
if ((iniDate.get(Calendar.DAY_OF_YEAR) == endDate.get(Calendar.DAY_OF_YEAR))
&& (iniDate.get(Calendar.YEAR) == endDate.get(Calendar.YEAR)))
sameDay = true;
String diaDaSemana = (new SimpleDateFormat("EEEE", locale)).format(iniDate.getTime());
String numeroDeDia = (new SimpleDateFormat("d", locale)).format(iniDate.getTime());
String mes = (new SimpleDateFormat("MMMM", locale)).format(iniDate.getTime());
// String hora = (new SimpleDateFormat("HH:mm", locale)).format(iniDate.getTime()) + "h";
String hora = (iniDate.get(Calendar.HOUR_OF_DAY) + new SimpleDateFormat(":mm", locale).format(iniDate.getTime()) + "h");
String numeroDeDiaFin = StringPool.BLANK;
String mesFin = StringPool.BLANK;
if (!sameDay) {
numeroDeDiaFin = (new SimpleDateFormat("d", locale)).format(endDate.getTime());
mesFin = (new SimpleDateFormat("MMMM", locale)).format(endDate.getTime());
}
%>
<%
if (sameDay) {
%>
<div class='event-date'>
<%= numeroDeDia %>
</div>
<div class='event-data'>
<div class="event-month"><%= mes %></div>
<div class="event-day"><%= diaDaSemana %></div>
<div class="event-time"><%= hora %></div>
</div>
<%
} else {
%>
<div class='event-date'>
<%= numeroDeDia %>
</div>
<div class='event-data'>
<div class="event-month"><%= mes %></div>
<div class="event-day"><%= diaDaSemana %></div>
<div class="event-time"><liferay-ui:message key="rrrrrr.events.until" /> <%= numeroDeDiaFin %>
<liferay-ui:message key="rrrrrr.events.of" /> <%= mesFin %></div>
</div>
<%
}
%>
</div>
</c:if>
</div>
<div class="entry-extract">
<%
String resumeText = StringPool.BLANK;
String resumeImage = StringPool.BLANK;
int extLength = 240;
if (entry.isSmallImage()) {
if (Validator.isNotNull(entry.getSmallImageURL()))
resumeImage = entry.getSmallImageURL();
else
resumeImage = themeDisplay.getPathImage() + "/journal/article?img_id=" + entry.getSmallImageId() + "&t=" + WebServerServletTokenUtil.getToken(entry.getSmallImageId()) ;
resumeImage.trim();
}
/* if no small image, extract first */
if ((resumeImage == null) || (resumeImage.isEmpty())) {
java.util.regex.Pattern p = java.util.regex.Pattern.compile("src=['\"]([^'\"]+)['\"]");
java.util.regex.Matcher m = p.matcher(entry.getContent());
if (m.find())
resumeImage = m.group().substring(5, m.group().length() -1);
}
resumeText = HtmlUtil.stripHtml(entry.getDescription());
resumeText.trim();
/* if no resume description, extract text */
if ((resumeText == null) || (resumeText.isEmpty())) {
resumeText = HtmlUtil.escape(StringUtil.shorten(HtmlUtil.extractText(entry.getContent()), extLength));
}
%>
<div class="extract-thumbnail">
<a href="<%= viewEntryURL %>" style="background-image: url('<%= HtmlUtil.escape(resumeImage) %>')">
<img class="asset-small-image" src="<%= HtmlUtil.escape(resumeImage) %>"/>
</a>
</div>
<div class="extract-title">
<a href="<%= viewEntryURL %>"><%= HtmlUtil.escape(entry.getTitle()) %></a>
</div>
<div class="extract-content">
<a href="<%= viewEntryURL %>">
<span class="extract-scope"><%= GroupLocalServiceUtil.getGroup(entry.getGroupId()).getDescriptiveName() %></span>
<span class="extract-date"><%= dateFormatDateTime.format(entry.getDisplayDate()) %></span>
<span><%= " " + resumeText %></span>
</a>
</div>
</div>
</div>
我无法猜测那里有任何内存泄漏，但是必须存在！ 我花了数周的时间试图找到一个错误（停用钩子以查看错误是否仍然存在），但无法找到任何线索。
有人在我的代码中看到潜在危险的东西吗？ 用其他方式可以跟踪Java内存使用情况以获取泄漏吗？
2 个解决方案
解决方案1
0 2014-07-29 09:40:32
那真的是一个凌乱的代码...首先不要使用scriplet使用servlet。
不要在确定问题时投入大量代码，然后缩小问题范围，以便我们进行回答。
您可以在Eclipse进行堆栈转储时使用MAT，并分析哪些对象占用了最多的内存，从而分析了导致内存泄漏的原因。
为什么将JSTL与Scriplets混合使用？ JSTL旨在与servlet一起使用。
您将业务逻辑与表示层混合在一起，这就是为什么强烈不建议使用Scriplet的原因。 您的代码不可读，当您将其更改为Scriplets时，会变得凌乱，然后我将为您提供一些答案。
解决方案2
0 2014-07-30 08:17:24
您描述的症状适合内存泄漏。 如果您怀疑一个原因， 请尝试给Plumbr找出原因并解决。 如果您仅需要有关java.lang.OutOfMemoryError：您面临的Java堆空间的更多信息，请参阅有关错误，可能的原因和解决方法的参考性文章。
Liferay迁移5.3.2到6.2数据库更改
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