I am learning Java from the Oracle documentation page: https://docs.oracle.com/javase/tutorial/reallybigindex.html
I am using Intellij on Linux Mint and I had no problems until I got to JApplets. Whenever I am trying to run my code now I get the following error:
Error: Could not find or load main class sun.applet.AppletViewer
Caused by: java.lang.ClassNotFoundException: sun.applet.AppletViewer
Can someone point me in the right direction?
Related
Error: Could not find or load main class
Caused by: java.lang.ClassNotFoundException:
this is happening in intellij for spring boot project.
i have tried to change project settings too.
using java 11
During work on my kotlin project using InteliJ IDE suddenly I get following error
Exception in thread "main" java.lang.NoClassDefFoundError: kotlin/jvm/internal/Intrinsics
at com.beust.klaxon.DefaultConverter.(DefaultConverter.kt)
My old code which compile without problems now throw this exception. How to fix it?
I don't know what is the reason - but this helps: reload gradle by click on
After that error disappear. I hope someone give explanation in separate answer
Followed the steps mentioned in this docs. databricks-connect test command works fine. However, when I launch the test scala program from Intellij, I'm seeing following error:
Exception in thread "main" java.lang.NoSuchMethodError: com.databricks.spark.util.MetricDefinitions$.EVENT_INITIAL_CONFIG_LOG()Lcom/databricks/spark/util/MetricDefinition;
at com.databricks.spark.util.InitialConfigLogging$.recordInitialConfigs(InitialConfigLogging.scala:47)
at org.apache.spark.sql.internal.SQLConf.recordSessionInitialConfs(SQLConf.scala:4166)
at org.apache.spark.sql.SparkSession.<init>(SparkSession.scala:150)
at org.apache.spark.sql.SparkSession$Builder.getOrCreate(SparkSession.scala:1033)
at com.srikanth.Demo$.main(Demo.scala:13)
at com.srikanth.Demo.main(Demo.scala)
Environment details:
python - 3.8
java - 1.8
databricks-connect - 9.1
I had the same error message, turns out I did not add the databricks-connect library properly. You should add the library like described here: https://docs.databricks.com/dev-tools/databricks-connect.html#intellij-scala-or-java
I'm trying to install Stardog, but it sends me this error:
Exception in thread "main" java.lang.UnsupportedClassVersionError: JVMCFRE003 bad major version; class=com/complexible/stardog/cli/admin/CLI, offset=6
at java.lang.ClassLoader.defineClassImpl(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:275)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:69)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:540)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:451)
at java.net.URLClassLoader.access$300(URLClassLoader.java:79)
at java.net.URLClassLoader$ClassFinder.run(URLClassLoader.java:1038)
at java.security.AccessController.doPrivileged(AccessController.java:284)
at java.net.URLClassLoader.findClass(URLClassLoader.java:429)
at java.lang.ClassLoader.loadClass(ClassLoader.java:660)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:358)
at java.lang.ClassLoader.loadClass(ClassLoader.java:626)
Could not find the main class: com.complexible.stardog.cli.admin.CLI. Program will exit.
Does anybody know how to solve it?
Errors of this kind typically mean the code you are attempting for run is for a different version of Java than you are trying to run.
Stardog requires Java 8:
Stardog runs on Java 8
So please ensure you are running it under Java 8, providing the output of java -version in your environment as part of your question would be helpful in determining if this is your problem.
Got the following stacktrace when launching gradle 1.1, anyone know how to resolve them:
Exception in thread "main" java.lang.NullPointerException
at org.gradle.wrapper.BootstrapMainStarter.findLauncherJar(BootstrapMainStarter.java:37)
at org.gradle.wrapper.BootstrapMainStarter.start(BootstrapMainStarter.java:28)
at org.gradle.wrapper.WrapperExecutor.execute(WrapperExecutor.java:130)
at org.gradle.wrapper.GradleWrapperMain.main(GradleWrapperMain.java:47)
I think the automatic unzip of the dists/gradle-1.1-bin/13d7lnhcrghv2i5e54el41jpgr/gradle-1.1-bin.zip might be failing. I checked permissions and that I have access to that directory.
If I unzip manually, then I get the following error:
Exception in thread "main" java.lang.RuntimeException: Gradle distribution 'http://services.gradle.org/distributions/gradle-1.1-bin.zip' contains too many directories. Expected to find exactly 1 directory.
at org.gradle.wrapper.Install.createDist(Install.java:73)
at org.gradle.wrapper.WrapperExecutor.execute(WrapperExecutor.java:129)
at org.gradle.wrapper.GradleWrapperMain.main(GradleWrapperMain.java:47)
I did a google search for gradle nullpointerexception and it mentioned the JAVA_HOME needs to be set for compiling, but I've already checked it is set correctly and been able to compile stuff with ant in that environment.
I was getting exactly same error and I changed the version of gradle that I was using. Inside my gradle-wrapper.properties, changed version 2.4 to 2.2.1 and error is gone.