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Posted to dev@sling.apache.org by "Henry Kuijpers (JIRA)" <ji...@apache.org> on 2017/01/13 11:09:26 UTC
[jira] [Updated] (SLING-6458) Java 8 features (lambdas, method
references, etc) are not supported
[ https://issues.apache.org/jira/browse/SLING-6458?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Henry Kuijpers updated SLING-6458:
----------------------------------
Description:
When trying to use Java 8 functionality in a JSP file, the Jasper framework in the Sling Scripting bundle fails to compile the JSP file. It seems to get stuck on a Java 8 feature: Lambdas.
{code}
<%@page session="false" %>
<%@ page import="java.util.stream.IntStream" %>
<%@ page import="java.io.IOException" %>
<%
out.println("Lambda test");
IntStream leip = IntStream.of(1, 2, 3, 4, 5, 6);
final JspWriter out2 = out;
leip.forEach(x -> {
try {
out2.println(x);
} catch (IOException e) {
// Intentionally do nothing
}
});
%>
{code}
When we remove the complete "leip.forEach" statement, the code compiles and executes successfully.
Upon further investigation, I found out that the Jasper compiler that is being used, does not have support for "tag 18", which seems to be the lambda feature in Java 8.
I could find the constant pool tags over here: https://docs.oracle.com/javase/specs/jvms/se7/html/jvms-4.html#jvms-4.4-140
Clearly, there is no support for MethodHandle, MethodType, InvokeDynamic.
I could find a bug report for Tomcat (where Jasper is developed) over here: https://bz.apache.org/bugzilla/show_bug.cgi?id=54475
It seems that the issue was fixed in a newer version of Jasper, namely 6.0.40. We are currently using 6.0.14 (which is in Apache Sling Scripting JSP version bundle version 2.1.4).
I tried looking at https://mvnrepository.com/artifact/org.apache.sling/org.apache.sling.scripting.jsp but for some reason all newer versions are also embedding Jasper 6.0.14 (which does not support Java 8) and in the custom code inside that bundle I also do not see any cases for 18 in the switch statement in SmapUtil$SDEInstaller.copyConstantPool. Nor do I see any traces that look like this fix: https://bz.apache.org/bugzilla/attachment.cgi?id=31416&action=diff
See below a stacktrace of what's happening:
{code}
12.01.2017 14:39:19.063 *ERROR* [144.119.190.210 [1484228359038] POST /content/products/somos/en_US/account/sign-up.html HTTP/1.1] org.apache.sling.servlets.get.impl.DefaultGetServlet No renderer for extension html, cannot render resource ResourceWrapper, type=test/components/form/actions/register, path=/content/page/sign-up/jcr:content/par/start, resource=[JcrNodeResource, type=foundation/components/form/start, superType=null, path=/content/page/sign-up/jcr:content/par/start]
12.01.2017 14:39:19.079 *ERROR* [144.119.190.210 [1484228359038] POST /content/products/somos/en_US/account/sign-up.html HTTP/1.1] com.day.cq.wcm.tags.IncludeTag Error while executing script /apps/test/components/form/actions/register/post.POST.jsp org.apache.sling.api.scripting.ScriptEvaluationException: org.apache.sling.scripting.jsp.jasper.JasperException: Unable to compile class for JSP
at org.apache.sling.scripting.core.impl.DefaultSlingScript.call(DefaultSlingScript.java:388)
at org.apache.sling.scripting.core.impl.DefaultSlingScript.eval(DefaultSlingScript.java:171)
at org.apache.sling.scripting.core.impl.DefaultSlingScript.service(DefaultSlingScript.java:463)
at com.day.cq.wcm.tags.IncludeTag.includeScript(IncludeTag.java:167)
at com.day.cq.wcm.tags.IncludeTag.doEndTag(IncludeTag.java:87)
at org.apache.sling.scripting.jsp.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
at org.apache.sling.scripting.jsp.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:502)
at org.apache.sling.scripting.jsp.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:449)
at org.apache.sling.scripting.jsp.JspScriptEngineFactory.callJsp(JspScriptEngineFactory.java:281)
at org.apache.sling.scripting.jsp.JspScriptEngineFactory.access$100(JspScriptEngineFactory.java:102)
at org.apache.sling.scripting.jsp.JspScriptEngineFactory$JspScriptEngine.eval(JspScriptEngineFactory.java:524)
at org.apache.sling.scripting.core.impl.DefaultSlingScript.call(DefaultSlingScript.java:361)
at org.apache.sling.scripting.core.impl.DefaultSlingScript.eval(DefaultSlingScript.java:171)
at org.apache.sling.scripting.core.impl.DefaultSlingScript.service(DefaultSlingScript.java:463)
at org.apache.sling.engine.impl.request.RequestData.service(RequestData.java:508)
at org.apache.sling.engine.impl.filter.SlingComponentFilterChain.render(SlingComponentFilterChain.java:45)
... filters ommitted for brevity ...
at com.day.j2ee.servletengine.RequestDispatcherImpl.doFilter(RequestDispatcherImpl.java:321)
at com.day.j2ee.servletengine.RequestDispatcherImpl.service(RequestDispatcherImpl.java:340)
at com.day.j2ee.servletengine.RequestDispatcherImpl.service(RequestDispatcherImpl.java:383)
at com.day.j2ee.servletengine.ServletHandlerImpl.process(ServletHandlerImpl.java:335)
at com.day.j2ee.servletengine.HttpListener$Worker.run(HttpListener.java:644)
at java.lang.Thread.run(Thread.java:745)
Caused by: org.apache.sling.api.SlingException: org.apache.sling.scripting.jsp.jasper.JasperException: Unable to compile class for JSP
at org.apache.sling.scripting.jsp.jasper.servlet.JspServletWrapper.handleJspExceptionInternal(JspServletWrapper.java:691)
at org.apache.sling.scripting.jsp.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:608)
at org.apache.sling.scripting.jsp.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:525)
at org.apache.sling.scripting.jsp.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:449)
at org.apache.sling.scripting.jsp.JspScriptEngineFactory.callJsp(JspScriptEngineFactory.java:281)
at org.apache.sling.scripting.jsp.JspScriptEngineFactory.access$100(JspScriptEngineFactory.java:102)
at org.apache.sling.scripting.jsp.JspScriptEngineFactory$JspScriptEngine.eval(JspScriptEngineFactory.java:524)
at org.apache.sling.scripting.core.impl.DefaultSlingScript.call(DefaultSlingScript.java:361)
... 121 more
Caused by: java.io.IOException: unexpected tag: 18
at org.apache.sling.scripting.jsp.jasper.compiler.SmapUtil$SDEInstaller.copyConstantPool(SmapUtil.java:491)
at org.apache.sling.scripting.jsp.jasper.compiler.SmapUtil$SDEInstaller.addSDE(SmapUtil.java:308)
at org.apache.sling.scripting.jsp.jasper.compiler.SmapUtil$SDEInstaller.<init>(SmapUtil.java:264)
at org.apache.sling.scripting.jsp.jasper.compiler.SmapUtil$SDEInstaller.install(SmapUtil.java:243)
at org.apache.sling.scripting.jsp.jasper.compiler.SmapUtil.installSmap(SmapUtil.java:167)
at org.apache.sling.scripting.jsp.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:151)
at org.apache.sling.scripting.jsp.jasper.compiler.Compiler.compile(Compiler.java:312)
at org.apache.sling.scripting.jsp.jasper.compiler.Compiler.compile(Compiler.java:290)
at org.apache.sling.scripting.jsp.jasper.compiler.Compiler.compile(Compiler.java:277)
at org.apache.sling.scripting.jsp.jasper.JspCompilationContext.compile(JspCompilationContext.java:501)
at org.apache.sling.scripting.jsp.jasper.servlet.JspServletWrapper.prepareServlet(JspServletWrapper.java:427)
at org.apache.sling.scripting.jsp.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:486)
... 126 more
{code}
was:
When trying to use Java 8 functionality in a JSP file, the Jasper framework in the Sling Scripting bundle fails to compile the JSP file. It seems to get stuck on a Java 8 feature: Lambdas.
{code}
<%@page session="false" %>
<%@ page import="java.util.stream.IntStream" %>
<%@ page import="java.io.IOException" %>
<%
out.println("Lambda test");
IntStream leip = IntStream.of(1, 2, 3, 4, 5, 6);
final JspWriter out2 = out;
leip.forEach(x -> {
try {
out2.println(x);
} catch (IOException e) {
// Intentionally do nothing
}
});
%>
{code}
When we remove the complete "leip.forEach" statement, the code compiles and executes successfully.
Upon further investigation, I found out that the Jasper compiler that is being used, does not have support for "tag 18", which seems to be the lambda feature in Java 8.
I could find the constant pool tags over here: https://docs.oracle.com/javase/specs/jvms/se7/html/jvms-4.html#jvms-4.4-140
Clearly, there is no support for MethodHandle, MethodType, InvokeDynamic.
I could find a bug report for Tomcat (where Jasper is developed) over here: https://bz.apache.org/bugzilla/show_bug.cgi?id=54475
It seems that the issue was fixed in a newer version of Jasper, namely 6.0.40. We are currently using 6.0.14 (which is in Apache Sling Scripting JSP version bundle version 2.1.4).
I tried looking at https://mvnrepository.com/artifact/org.apache.sling/org.apache.sling.scripting.jsp but for some reason all newer versions are also embedding Jasper 6.0.14 (which does not support Java 8) and in the custom code inside that bundle I also do not see any cases for 18 in the switch statement in SmapUtil$SDEInstaller.copyConstantPool. Nor do I see any traces that look like this fix: https://bz.apache.org/bugzilla/attachment.cgi?id=31416&action=diff
See below a stacktrace of what's happening:
{code}
12.01.2017 14:39:19.063 *ERROR* [144.119.190.210 [1484228359038] POST /content/products/somos/en_US/account/sign-up.html HTTP/1.1] org.apache.sling.servlets.get.impl.DefaultGetServlet No renderer for extension html, cannot render resource ResourceWrapper, type=test/components/form/actions/register, path=/content/products/somos/en_US/account/sign-up/jcr:content/par/start, resource=[JcrNodeResource, type=foundation/components/form/start, superType=null, path=/content/products/somos/en_US/account/sign-up/jcr:content/par/start]
12.01.2017 14:39:19.079 *ERROR* [144.119.190.210 [1484228359038] POST /content/products/somos/en_US/account/sign-up.html HTTP/1.1] com.day.cq.wcm.tags.IncludeTag Error while executing script /apps/test/components/form/actions/register/post.POST.jsp org.apache.sling.api.scripting.ScriptEvaluationException: org.apache.sling.scripting.jsp.jasper.JasperException: Unable to compile class for JSP
at org.apache.sling.scripting.core.impl.DefaultSlingScript.call(DefaultSlingScript.java:388)
at org.apache.sling.scripting.core.impl.DefaultSlingScript.eval(DefaultSlingScript.java:171)
at org.apache.sling.scripting.core.impl.DefaultSlingScript.service(DefaultSlingScript.java:463)
at com.day.cq.wcm.tags.IncludeTag.includeScript(IncludeTag.java:167)
at com.day.cq.wcm.tags.IncludeTag.doEndTag(IncludeTag.java:87)
at org.apache.sling.scripting.jsp.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
at org.apache.sling.scripting.jsp.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:502)
at org.apache.sling.scripting.jsp.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:449)
at org.apache.sling.scripting.jsp.JspScriptEngineFactory.callJsp(JspScriptEngineFactory.java:281)
at org.apache.sling.scripting.jsp.JspScriptEngineFactory.access$100(JspScriptEngineFactory.java:102)
at org.apache.sling.scripting.jsp.JspScriptEngineFactory$JspScriptEngine.eval(JspScriptEngineFactory.java:524)
at org.apache.sling.scripting.core.impl.DefaultSlingScript.call(DefaultSlingScript.java:361)
at org.apache.sling.scripting.core.impl.DefaultSlingScript.eval(DefaultSlingScript.java:171)
at org.apache.sling.scripting.core.impl.DefaultSlingScript.service(DefaultSlingScript.java:463)
at org.apache.sling.engine.impl.request.RequestData.service(RequestData.java:508)
at org.apache.sling.engine.impl.filter.SlingComponentFilterChain.render(SlingComponentFilterChain.java:45)
... filters ommitted for brevity ...
at com.day.j2ee.servletengine.RequestDispatcherImpl.doFilter(RequestDispatcherImpl.java:321)
at com.day.j2ee.servletengine.RequestDispatcherImpl.service(RequestDispatcherImpl.java:340)
at com.day.j2ee.servletengine.RequestDispatcherImpl.service(RequestDispatcherImpl.java:383)
at com.day.j2ee.servletengine.ServletHandlerImpl.process(ServletHandlerImpl.java:335)
at com.day.j2ee.servletengine.HttpListener$Worker.run(HttpListener.java:644)
at java.lang.Thread.run(Thread.java:745)
Caused by: org.apache.sling.api.SlingException: org.apache.sling.scripting.jsp.jasper.JasperException: Unable to compile class for JSP
at org.apache.sling.scripting.jsp.jasper.servlet.JspServletWrapper.handleJspExceptionInternal(JspServletWrapper.java:691)
at org.apache.sling.scripting.jsp.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:608)
at org.apache.sling.scripting.jsp.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:525)
at org.apache.sling.scripting.jsp.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:449)
at org.apache.sling.scripting.jsp.JspScriptEngineFactory.callJsp(JspScriptEngineFactory.java:281)
at org.apache.sling.scripting.jsp.JspScriptEngineFactory.access$100(JspScriptEngineFactory.java:102)
at org.apache.sling.scripting.jsp.JspScriptEngineFactory$JspScriptEngine.eval(JspScriptEngineFactory.java:524)
at org.apache.sling.scripting.core.impl.DefaultSlingScript.call(DefaultSlingScript.java:361)
... 121 more
Caused by: java.io.IOException: unexpected tag: 18
at org.apache.sling.scripting.jsp.jasper.compiler.SmapUtil$SDEInstaller.copyConstantPool(SmapUtil.java:491)
at org.apache.sling.scripting.jsp.jasper.compiler.SmapUtil$SDEInstaller.addSDE(SmapUtil.java:308)
at org.apache.sling.scripting.jsp.jasper.compiler.SmapUtil$SDEInstaller.<init>(SmapUtil.java:264)
at org.apache.sling.scripting.jsp.jasper.compiler.SmapUtil$SDEInstaller.install(SmapUtil.java:243)
at org.apache.sling.scripting.jsp.jasper.compiler.SmapUtil.installSmap(SmapUtil.java:167)
at org.apache.sling.scripting.jsp.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:151)
at org.apache.sling.scripting.jsp.jasper.compiler.Compiler.compile(Compiler.java:312)
at org.apache.sling.scripting.jsp.jasper.compiler.Compiler.compile(Compiler.java:290)
at org.apache.sling.scripting.jsp.jasper.compiler.Compiler.compile(Compiler.java:277)
at org.apache.sling.scripting.jsp.jasper.JspCompilationContext.compile(JspCompilationContext.java:501)
at org.apache.sling.scripting.jsp.jasper.servlet.JspServletWrapper.prepareServlet(JspServletWrapper.java:427)
at org.apache.sling.scripting.jsp.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:486)
... 126 more
{code}
> Java 8 features (lambdas, method references, etc) are not supported
> -------------------------------------------------------------------
>
> Key: SLING-6458
> URL: https://issues.apache.org/jira/browse/SLING-6458
> Project: Sling
> Issue Type: Bug
> Components: Scripting
> Affects Versions: Scripting JSP 2.0.28, Scripting JSP 2.1.0, Scripting JSP 2.1.4, Scripting JSP 2.1.6, Scripting JSP 2.1.8, Scripting JSP 2.2.0, Scripting JSP 2.2.2, Scripting JSP 2.2.4, Scripting JSP 2.2.6
> Environment: AEM 5.6.1 SP2, AEM 6.1 SP1, AEM 6.2
> Reporter: Henry Kuijpers
>
> When trying to use Java 8 functionality in a JSP file, the Jasper framework in the Sling Scripting bundle fails to compile the JSP file. It seems to get stuck on a Java 8 feature: Lambdas.
> {code}
> <%@page session="false" %>
> <%@ page import="java.util.stream.IntStream" %>
> <%@ page import="java.io.IOException" %>
> <%
> out.println("Lambda test");
> IntStream leip = IntStream.of(1, 2, 3, 4, 5, 6);
> final JspWriter out2 = out;
> leip.forEach(x -> {
> try {
> out2.println(x);
> } catch (IOException e) {
> // Intentionally do nothing
> }
> });
> %>
> {code}
> When we remove the complete "leip.forEach" statement, the code compiles and executes successfully.
> Upon further investigation, I found out that the Jasper compiler that is being used, does not have support for "tag 18", which seems to be the lambda feature in Java 8.
> I could find the constant pool tags over here: https://docs.oracle.com/javase/specs/jvms/se7/html/jvms-4.html#jvms-4.4-140
> Clearly, there is no support for MethodHandle, MethodType, InvokeDynamic.
> I could find a bug report for Tomcat (where Jasper is developed) over here: https://bz.apache.org/bugzilla/show_bug.cgi?id=54475
> It seems that the issue was fixed in a newer version of Jasper, namely 6.0.40. We are currently using 6.0.14 (which is in Apache Sling Scripting JSP version bundle version 2.1.4).
> I tried looking at https://mvnrepository.com/artifact/org.apache.sling/org.apache.sling.scripting.jsp but for some reason all newer versions are also embedding Jasper 6.0.14 (which does not support Java 8) and in the custom code inside that bundle I also do not see any cases for 18 in the switch statement in SmapUtil$SDEInstaller.copyConstantPool. Nor do I see any traces that look like this fix: https://bz.apache.org/bugzilla/attachment.cgi?id=31416&action=diff
> See below a stacktrace of what's happening:
> {code}
> 12.01.2017 14:39:19.063 *ERROR* [144.119.190.210 [1484228359038] POST /content/products/somos/en_US/account/sign-up.html HTTP/1.1] org.apache.sling.servlets.get.impl.DefaultGetServlet No renderer for extension html, cannot render resource ResourceWrapper, type=test/components/form/actions/register, path=/content/page/sign-up/jcr:content/par/start, resource=[JcrNodeResource, type=foundation/components/form/start, superType=null, path=/content/page/sign-up/jcr:content/par/start]
> 12.01.2017 14:39:19.079 *ERROR* [144.119.190.210 [1484228359038] POST /content/products/somos/en_US/account/sign-up.html HTTP/1.1] com.day.cq.wcm.tags.IncludeTag Error while executing script /apps/test/components/form/actions/register/post.POST.jsp org.apache.sling.api.scripting.ScriptEvaluationException: org.apache.sling.scripting.jsp.jasper.JasperException: Unable to compile class for JSP
> at org.apache.sling.scripting.core.impl.DefaultSlingScript.call(DefaultSlingScript.java:388)
> at org.apache.sling.scripting.core.impl.DefaultSlingScript.eval(DefaultSlingScript.java:171)
> at org.apache.sling.scripting.core.impl.DefaultSlingScript.service(DefaultSlingScript.java:463)
> at com.day.cq.wcm.tags.IncludeTag.includeScript(IncludeTag.java:167)
> at com.day.cq.wcm.tags.IncludeTag.doEndTag(IncludeTag.java:87)
> at org.apache.sling.scripting.jsp.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
> at org.apache.sling.scripting.jsp.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:502)
> at org.apache.sling.scripting.jsp.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:449)
> at org.apache.sling.scripting.jsp.JspScriptEngineFactory.callJsp(JspScriptEngineFactory.java:281)
> at org.apache.sling.scripting.jsp.JspScriptEngineFactory.access$100(JspScriptEngineFactory.java:102)
> at org.apache.sling.scripting.jsp.JspScriptEngineFactory$JspScriptEngine.eval(JspScriptEngineFactory.java:524)
> at org.apache.sling.scripting.core.impl.DefaultSlingScript.call(DefaultSlingScript.java:361)
> at org.apache.sling.scripting.core.impl.DefaultSlingScript.eval(DefaultSlingScript.java:171)
> at org.apache.sling.scripting.core.impl.DefaultSlingScript.service(DefaultSlingScript.java:463)
> at org.apache.sling.engine.impl.request.RequestData.service(RequestData.java:508)
> at org.apache.sling.engine.impl.filter.SlingComponentFilterChain.render(SlingComponentFilterChain.java:45)
> ... filters ommitted for brevity ...
> at com.day.j2ee.servletengine.RequestDispatcherImpl.doFilter(RequestDispatcherImpl.java:321)
> at com.day.j2ee.servletengine.RequestDispatcherImpl.service(RequestDispatcherImpl.java:340)
> at com.day.j2ee.servletengine.RequestDispatcherImpl.service(RequestDispatcherImpl.java:383)
> at com.day.j2ee.servletengine.ServletHandlerImpl.process(ServletHandlerImpl.java:335)
> at com.day.j2ee.servletengine.HttpListener$Worker.run(HttpListener.java:644)
> at java.lang.Thread.run(Thread.java:745)
> Caused by: org.apache.sling.api.SlingException: org.apache.sling.scripting.jsp.jasper.JasperException: Unable to compile class for JSP
> at org.apache.sling.scripting.jsp.jasper.servlet.JspServletWrapper.handleJspExceptionInternal(JspServletWrapper.java:691)
> at org.apache.sling.scripting.jsp.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:608)
> at org.apache.sling.scripting.jsp.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:525)
> at org.apache.sling.scripting.jsp.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:449)
> at org.apache.sling.scripting.jsp.JspScriptEngineFactory.callJsp(JspScriptEngineFactory.java:281)
> at org.apache.sling.scripting.jsp.JspScriptEngineFactory.access$100(JspScriptEngineFactory.java:102)
> at org.apache.sling.scripting.jsp.JspScriptEngineFactory$JspScriptEngine.eval(JspScriptEngineFactory.java:524)
> at org.apache.sling.scripting.core.impl.DefaultSlingScript.call(DefaultSlingScript.java:361)
> ... 121 more
> Caused by: java.io.IOException: unexpected tag: 18
> at org.apache.sling.scripting.jsp.jasper.compiler.SmapUtil$SDEInstaller.copyConstantPool(SmapUtil.java:491)
> at org.apache.sling.scripting.jsp.jasper.compiler.SmapUtil$SDEInstaller.addSDE(SmapUtil.java:308)
> at org.apache.sling.scripting.jsp.jasper.compiler.SmapUtil$SDEInstaller.<init>(SmapUtil.java:264)
> at org.apache.sling.scripting.jsp.jasper.compiler.SmapUtil$SDEInstaller.install(SmapUtil.java:243)
> at org.apache.sling.scripting.jsp.jasper.compiler.SmapUtil.installSmap(SmapUtil.java:167)
> at org.apache.sling.scripting.jsp.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:151)
> at org.apache.sling.scripting.jsp.jasper.compiler.Compiler.compile(Compiler.java:312)
> at org.apache.sling.scripting.jsp.jasper.compiler.Compiler.compile(Compiler.java:290)
> at org.apache.sling.scripting.jsp.jasper.compiler.Compiler.compile(Compiler.java:277)
> at org.apache.sling.scripting.jsp.jasper.JspCompilationContext.compile(JspCompilationContext.java:501)
> at org.apache.sling.scripting.jsp.jasper.servlet.JspServletWrapper.prepareServlet(JspServletWrapper.java:427)
> at org.apache.sling.scripting.jsp.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:486)
> ... 126 more
> {code}
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