I'm working on an AEM 6.4 maven project and I need to make it deployable on AEM 6.5.
First I updated the versions of some dependencies, in order to make the project buildable with java 11, and secondly I loaded the content into a new 6.5 instance.
The bundles run correctly, but when I try to access a page I get an error caused by the loading of a custom tag and the page appears all white:
org.apache.sling.scripting.jsp.jasper.JasperException: /apps/carnivol/framework/components/page/basepage/basepage.jsp(3,0) Unable to load tag handler class "com.carnivol.framework.utils.RemoveWhiteSpaceTag" for tag "carnivol:trim-white-space"
The same application works fine when compiled with java 8 (Apache Maven 3.6.3).
This is the java class the handles the new tag:
package com.carnivol.framework.utils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.IOException;
import javax.servlet.jsp.JspWriter;
import javax.servlet.jsp.tagext.BodyContent;
import javax.servlet.jsp.tagext.BodyTagSupport;
public class RemoveWhiteSpaceTag extends BodyTagSupport {
/** The Constant serialVersionUID. */
private static final long serialVersionUID = 2814639284705425046L;
/** The Constant LOGGER. */
private static final Logger LOGGER = LoggerFactory.getLogger(RemoveWhiteSpaceTag.class);
/*
* (non-Javadoc)
*
* @see javax.servlet.jsp.tagext.BodyTagSupport#doAfterBody()
*/
@Override
public int doAfterBody() {
try {
final BodyContent bodyContent = super.getBodyContent();
final JspWriter out = bodyContent.getEnclosingWriter();
final String html = bodyContent.getString();
out.print(html.replaceAll("(?m)^\\s+", ""));
} catch (IOException e) {
LOGGER.debug("remove white space error: ", e);
}
return SKIP_BODY;
}
}
This is the tld file:
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<taglib xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-jsptaglibrary_2_0.xsd"
version="2.0">
<tlib-version>1.0</tlib-version>
<short-name>trim-white-space</short-name>
<uri>http://www.carnivolcorp.com/trim-white-space</uri>
<tag>
<name>trim-white-space</name>
<tag-class>com.carnivol.framework.utils.RemoveWhiteSpaceTag</tag-class>
<body-content>scriptless</body-content>
</tag>
</taglib>
Here we have the jsp generating the error:
<%@include file="/libs/foundation/global.jsp"%><%@taglib
prefix="carnivol" uri="http://www.carnivolcorp.com/trim-white-space"%>
<carnivol:trim-white-space>
<cq:include script="basepage-htl.html" />
</carnivol:trim-white-space>
And finally a more detailed log:
02.09.2020 09:54:53.381 *ERROR* [0:0:0:0:0:0:0:1 [1599033293378] GET /content/costo/master_website/it_IT.html HTTP/1.1] com.day.cq.wcm.core.impl.WCMDeveloperModeFilter Error during include of SlingRequestPathInfo: path='/content/costo/master_website/it_IT/jcr:content', selectorString='null', extension='html', suffix='null'
org.apache.sling.api.scripting.ScriptEvaluationException: org.apache.sling.scripting.jsp.jasper.JasperException: /apps/carnivol/framework/components/page/basepage/basepage.jsp(3,0) Unable to load tag handler class "com.carnivol.framework.utils.RemoveWhiteSpaceTag" for tag "carnivol:trim-white-space"
at org.apache.sling.scripting.core.impl.DefaultSlingScript.call(DefaultSlingScript.java:416) [org.apache.sling.scripting.core:2.0.56]
at org.apache.sling.scripting.core.impl.DefaultSlingScript.eval(DefaultSlingScript.java:184) [org.apache.sling.scripting.core:2.0.56]
at org.apache.sling.scripting.core.impl.DefaultSlingScript.service(DefaultSlingScript.java:491) [org.apache.sling.scripting.core:2.0.56]
at org.apache.sling.engine.impl.request.RequestData.service(RequestData.java:552) [org.apache.sling.engine:2.6.20]
at org.apache.sling.engine.impl.filter.SlingComponentFilterChain.render(SlingComponentFilterChain.java:44) [org.apache.sling.engine:2.6.20]
at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:82) [org.apache.sling.engine:2.6.20]
at com.day.cq.wcm.core.impl.WCMDeveloperModeFilter.doFilterWithErrorHandling(WCMDeveloperModeFilter.java:164) [com.day.cq.wcm.cq-wcm-core:5.12.118]
at com.day.cq.wcm.core.impl.WCMDeveloperModeFilter.doFilter(WCMDeveloperModeFilter.java:135) [com.day.cq.wcm.cq-wcm-core:5.12.118]
at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:72) [org.apache.sling.engine:2.6.20]
at com.day.cq.wcm.core.impl.WCMDebugFilter.doFilterWithErrorHandling(WCMDebugFilter.java:192) [com.day.cq.wcm.cq-wcm-core:5.12.118]
at com.day.cq.wcm.core.impl.WCMDebugFilter.doFilter(WCMDebugFilter.java:159) [com.day.cq.wcm.cq-wcm-core:5.12.118]
at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:72) [org.apache.sling.engine:2.6.20]
at org.apache.sling.dynamicinclude.IncludeTagFilter.doFilter(IncludeTagFilter.java:71) [org.apache.sling.dynamic-include:3.0.0]
at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:72) [org.apache.sling.engine:2.6.20]
at com.day.cq.wcm.core.impl.WCMComponentFilter.doFilter(WCMComponentFilter.java:278) [com.day.cq.wcm.cq-wcm-core:5.12.118]
at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:72) [org.apache.sling.engine:2.6.20]
at com.day.cq.wcm.core.impl.page.PageLockFilter.doFilter(PageLockFilter.java:91) [com.day.cq.wcm.cq-wcm-core:5.12.118]
at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:72) [org.apache.sling.engine:2.6.20]
at com.day.cq.personalization.impl.TargetComponentFilter.doFilter(TargetComponentFilter.java:94) [com.day.cq.cq-personalization:5.12.38]
at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:72) [org.apache.sling.engine:2.6.20]
at com.adobe.granite.csrf.impl.CSRFFilter.doFilter(CSRFFilter.java:217) [com.adobe.granite.csrf:1.0.20.CQ650-B0002]
at org.apache.sling.engine.impl.filter.AbstractSlingFilterChain.doFilter(AbstractSlingFilterChain.java:72) [org.apache.sling.engine:2.6.20]
at org.apache.sling.engine.impl.SlingRequestProcessorImpl.processComponent(SlingRequestProcessorImpl.java:282) [org.apache.sling.engine:2.6.20]
at org.apache.sling.engine.impl.SlingRequestProcessorImpl.dispatchRequest(SlingRequestProcessorImpl.java:322) [org.apache.sling.engine:2.6.20]
at org.apache.sling.engine.impl.request.SlingRequestDispatcher.dispatch(SlingRequestDispatcher.java:211) [org.apache.sling.engine:2.6.20]
at org.apache.sling.engine.impl.request.SlingRequestDispatcher.include(SlingRequestDispatcher.java:104) [org.apache.sling.engine:2.6.20]
at com.day.cq.wcm.core.impl.WCMComponentFilter$ForwardRequestDispatcher.include(WCMComponentFilter.java:516) [com.day.cq.wcm.cq-wcm-core:5.12.118]
at org.apache.jsp.libs.cq.Page.Page_jsp._jspService(Page_jsp.java:117)
...
Could anyone please suggest a solution? Thank you in advance.