I am running java 8 on my Mac, but when I try to create a new project it gives me this error saying it cannot enable Maven. I never had this problem on windows.
The Apache NetBeans 13 binary releases require JDK 11+, and officially
support running on JDK 11 and JDK 17.
Source: https://netbeans.apache.org/download/nb13/nb13.html
Therefore try to upgrade your JDK.
I'm developing with CodenameOne in the IntelliJ IDE. When I choose "Send MacOS Desktop Build", I get this error message:
Unsupported major.minor version 51.0
My project SDK says 1.5 (Java Version 1.6.0_65)
My Language level is set to 5.0
I've done a rebuild, which should recompile everything, but I still get this error. Version 51 refers to Java 7. Can anyone tell me how to fix this?
Does your project have any 3rd party cn1libs? It is possible some of them have been compiled with Java 7.
A workaround in that case would be to change your project to use Java 8. (I think that is supported in IntelliJ, but not 100% sure). For changing the project to Java 8 there are a few settings you need to change. It is usually just easier to start a new project and check "Java 8" in the wizard. Then copy your sources over.
Please find the list of major minor version related issue.
J2SE 8 = 52,
J2SE 7 = 51,
J2SE 6.0 = 50,
J2SE 5.0 = 49,
JDK 1.4 = 48,
JDK 1.3 = 47,
JDK 1.2 = 46,
JDK 1.1 = 45
We can change the required compatible JDK Version from Configuration Page and it should work out.
This is a problem because we require a minimum of JDK 1.7 and now recommend JDK 8. You need to set IntelliJ to use that JDK and configure it to use it.
I had this issue while running cxf soap client.
Server: apache-tomcat-7.0.33
Error: java.lang.UnsupportedClassVersionError: org/apache/cxf/jaxws/JaxWsProxyFactoryBean :
Unsupported major.minor version 51.0
Resolution: Resolved this by compiling the app using jdk1.8.0_65. Earlier i was using jdk1.7.
I want to deploy Solr 5.2.1 to tomcat 7 on a windows.Can you please provide me step by step guide to installing the same.
Solr team has discontinued support of Tomcat for newer versions.
https://cwiki.apache.org/confluence/display/solr/Running+Solr+on+Tomcat
I have upgraded Windows XP - PC RAM from 1GB to 3GB. Since JVM had some problem Eclipse Helios, I had to reinstall it and I did clean installation.
I have installed jdk7( jdk-7-ea-bin-b88-windows-i586-08_apr_2010.exe ).
Now my tomcat( Apache Tomcat Version 6.0.16 ) doesn't start.
Log says
java.lang.UnsupportedClassVersionError:
javax/management/MalformedObjectNameException :
Unsupported major.minor version 51.3
So I installed latest version of Tomcat i.e. Tomcat-6.0.29. Log says
java.lang.ClassFormatError:
Incompatible magic value 1853108037 in class file javax/management/MXBean
Thanks a lot for help.
Yeah it looks like Tomcat isn't compatible with JDK7 This to me says there are bugs
I want to setup search for my site. I couldn't find much information to install Jetty + Solr on my linode.
I could install solr-jetty on ubuntu simply using apt-get. any body has better experience with debian?
You shouldn't need to install it through the package manager. Jetty is deployed with Solr from the Solr homepage. So long as you have java installed on your server you can simply unpack the Solr distibution, read example/README.txt