Cannot start tomcat

Question

I have downloaded tomcat into home/username/web/tomcat. in the bin folder i created file setenv.sh:

JAVA_HOME=/usr/lib/jvm/java-7-openjdk-amd64

then i started tomcat (sh startup.sh) and got message

Using CATALINA_BASE:   /home/username/web/tomcat
Using CATALINA_HOME:   /home/username/web/tomcat
Using CATALINA_TMPDIR: /home/username/web/tomcat/temp
Using JRE_HOME:        /usr/lib/jvm/java-7-openjdk-amd64
Using CLASSPATH:       /home/username/web/tomcat/bin/bootstrap.jar:/home/username/web/tomcat/bin/tomcat-juli.jar
Tomcat started.

However when I go to http://localhost:8080/ in my browser I get the error message :

This webpage is not available

ERR_CONNECTION_REFUSED

What could go wrong?

Catalina.out has following:

Exception in thread "main" java.lang.UnsupportedClassVersionError: org/apache/catalina/startup/Bootstrap : Unsupported major.minor version 52.0
    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClass(ClassLoader.java:803)
    at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
    at java.net.URLClassLoader.defineClass(URLClassLoader.java:442)
    at java.net.URLClassLoader.access$100(URLClassLoader.java:64)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:354)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:348)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:347)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:312)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
    at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:482

The problem was in old version of jdk. Tomcat needed the last version of Java

So it isn't listening at port 8080. So either configure it so it is, or browse to it at the port it *is* listening to, or see whether it started up at all. Off topic. — user207421, Aug 17 '17 at 11:01
Possible duplicate of [Tomcat won't load default web page in browser](https://stackoverflow.com/questions/33636886/tomcat-wont-load-default-web-page-in-browser) — Unknown, Aug 17 '17 at 11:03
[how-to-fix-java-unsupported-major-minor-version](https://stackoverflow.com/questions/10382929/how-to-fix-java-lang-unsupportedclassversionerror-unsupported-major-minor-versi) — Hugues M., Aug 17 '17 at 11:19
Possible duplicate of [How to fix java.lang.UnsupportedClassVersionError: Unsupported major.minor version](https://stackoverflow.com/questions/10382929/how-to-fix-java-lang-unsupportedclassversionerror-unsupported-major-minor-versi) — Olaf Kock, Aug 17 '17 at 13:55

score 2 · Answer 1 · answered Aug 17 '17 at 11:00

2

startup.bat typically opens a new command line. If the new command line closes immediately, it's hard to recognize the error message that's displayed for fractions of a second.

You can check error messages in tomcat's log/catalina.out or see them interactively by using catalina.bat run - this will not open a new window and not go to the background - instead start Tomcat in the current command line window, displaying all the log information. It should be easy to spot the problem this way.

answered Aug 17 '17 at 11:00

Harsh

243
3
20

This doesn't answer the question. It should be a comment, not an answer. I know , you cant comment yet - but that doesnt mean you should misuse *answers* to give comments. – GhostCat Aug 17 '17 at 11:09
sorry @GhostCat, I have to comment but it can not possible. – Harsh Aug 17 '17 at 11:18
Please note that i didnt downvote or flag your answer. And hey, you even reached comment level. What I am saying: I have seen much worse comment answers ... – GhostCat Aug 17 '17 at 11:19

Cannot start tomcat

1 Answers1