I have a web application which runs fine with Tomcat 7.0.55 and Java 7
(various updates, including Update 65).
When I keep everything else constant and use Java 8 Update 20, I get
errors around JSP compilation, e.g.:
* org.apache.jasper.compiler.JDTCompiler - Compilation error
org.eclipse.jdt.internal.compiler.classfmt.ClassFormatException
* org.apache.jasper.JasperException: Unable to compile class for JSP:
An error occurred at line: [1] in the generated java file: [...]
The type java.util.Map$Entry cannot be resolved. It is indirectly
referenced from required .class files
Tomcat is configured to use 1.7 for both compilerSourceVM and
compilerTargetVM in web.xml. I cleared out all the generated files when
switching from Java 7 to Java 8 to be safe. The ECJ used should be the
latest from Tomcat 7.0.55, with bundle version 3.10.0.v20140604-1726.
I've googled for these issues and found nothing helpful.
Should 7.0.55 work with Java 8 "as is"? If not, what is necessary to
make it work?
--
Jess Holle
