I installed the google app engine sdk and plugin and every time I'm trying to save a java file my IDE (Eclipse Kepler) shows me an error window: "Java Virtual Machine Launcher - Could not find the main class com.google.appengine.tools.enhancer.Enhance. Program will exit".
In the console there is also a message:
"java.lang.UnsupportedClassVersionError: com/google/appengine/tools/enhancer/Enhance : Unsupported major.minor version 51.0
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClassCond(ClassLoader.java:631)
at java.lang.ClassLoader.defineClass(ClassLoader.java:615)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:283)
at java.net.URLClassLoader.access$000(URLClassLoader.java:58)
at java.net.URLClassLoader$1.run(URLClassLoader.java:197)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
Exception in thread "main"
It happens only in GAP and GWT projects...simple web or java projects are fine.
How can I fix it?
Thanks.
Related
I have followed the current steps to export my product for multiple platforms (namely, following the steps in the preferred way of doing multi-platform builds). However, when I export the product to multiple platforms (for the moment win32.x86 & win32.x86_64) only the x86 version starts correctly. The 64bit version throws the following error:
!MESSAGE An error occurred while automatically activating bundle org.eclipse.ui.workbench (97).
!STACK 0
org.osgi.framework.BundleException: Error starting module.
at org.eclipse.osgi.container.Module.doStart(Module.java:590)
at org.eclipse.osgi.container.Module.start(Module.java:449)
at org.eclipse.osgi.framework.util.SecureAction.start(SecureAction.java:468)
at org.eclipse.osgi.internal.hooks.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:114)
at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.findLocalClass(ClasspathManager.java:505)
at org.eclipse.osgi.internal.loader.ModuleClassLoader.findLocalClass(ModuleClassLoader.java:328)
at org.eclipse.osgi.internal.loader.BundleLoader.findLocalClass(BundleLoader.java:392)
at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:470)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:419)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:411)
at org.eclipse.osgi.internal.framework.BundleContextImpl.loadBundleActivator(BundleContextImpl.java:762)
at org.eclipse.osgi.internal.framework.BundleContextImpl.start(BundleContextImpl.java:716)
at org.eclipse.osgi.internal.framework.EquinoxBundle.startWorker0(EquinoxBundle.java:1002)
at org.eclipse.osgi.internal.framework.EquinoxBundle$EquinoxModule.startWorker(EquinoxBundle.java:354)
at org.eclipse.osgi.container.Module.doStart(Module.java:581)
at org.eclipse.osgi.container.Module.start(Module.java:449)
at org.eclipse.osgi.framework.util.SecureAction.start(SecureAction.java:468)
at org.eclipse.osgi.internal.hooks.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:114)
at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.findLocalClass(ClasspathManager.java:505)
at org.eclipse.osgi.internal.loader.ModuleClassLoader.findLocalClass(ModuleClassLoader.java:328)
at org.eclipse.osgi.internal.loader.BundleLoader.findLocalClass(BundleLoader.java:392)
at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:470)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:419)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:411)
at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:150)
at java.lang.ClassLoader.loadClass(Unknown Source)
at org.eclipse.osgi.internal.framework.EquinoxBundle.loadClass(EquinoxBundle.java:609)
at org.eclipse.core.internal.registry.osgi.RegistryStrategyOSGI.createExecutableExtension(RegistryStrategyOSGI.java:177)
at org.eclipse.core.internal.registry.ExtensionRegistry.createExecutableExtension(ExtensionRegistry.java:931)
at org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:243)
at org.eclipse.core.internal.registry.ConfigurationElementHandle.createExecutableExtension(ConfigurationElementHandle.java:60)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:191)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:388)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:243)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:656)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:592)
at org.eclipse.equinox.launcher.Main.run(Main.java:1498)
Caused by: java.lang.NoClassDefFoundError: org/eclipse/swt/SWTError
at java.lang.Class.getDeclaredConstructors0(Native Method)
at java.lang.Class.privateGetDeclaredConstructors(Unknown Source)
at java.lang.Class.getConstructor0(Unknown Source)
at java.lang.Class.newInstance(Unknown Source)
at org.eclipse.osgi.internal.framework.BundleContextImpl.loadBundleActivator(BundleContextImpl.java:763)
at org.eclipse.osgi.internal.framework.BundleContextImpl.start(BundleContextImpl.java:716)
at org.eclipse.osgi.internal.framework.EquinoxBundle.startWorker0(EquinoxBundle.java:1002)
at org.eclipse.osgi.internal.framework.EquinoxBundle$EquinoxModule.startWorker(EquinoxBundle.java:354)
at org.eclipse.osgi.container.Module.doStart(Module.java:581)
... 42 more
Caused by: java.lang.ClassNotFoundException: org.eclipse.swt.SWTError cannot be found by org.eclipse.ui.workbench_3.111.0.v20180524-1156
at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:508)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:419)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:411)
at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:150)
at java.lang.ClassLoader.loadClass(Unknown Source)
... 51 more
I assume that it is caused by the x86_64 swt plugin not being loaded, however while org.eclipse.swt.win32.win32.x86 plugin is included in the contents of the product definition, when trying to add the x86_64 plugin into the contents of my product, it doesn't appear on the plugin selection dialog (and of course is not already in the list of plugins).
The only thing remotely related to a x86_64 plugin available is the org.eclipse.equinox.launcher.win32.win32.x86_64, but including this and exporting again (unsurprisingly) returns the same error.
I've checked that the target platform has been updated with the software site from 4.8 files, only a few warnings appear.
How can I force the org.eclipse.swt.win32.win32.x86_64 plugin to appear in the available plugins to be selected in my product? I there any additional step to allow multiple platform export?
when you input "Work With",you can not only "replace 4.8 with your version".you must browse this url,(my version is 4.13)
https://download.eclipse.org/eclipse/downloads/drops4/S-4.13M1-201907111805/
and find "Eclipse p2 Repository",now you find true url to "Work With"
it is very importen that You must find the release notes for it.
like this
https://download.eclipse.org/eclipse/downloads/
Finally made it to work. My target platform was corrupted somehow. Creating a new target platform and following the wiki steps worked this time.
The steps are:
Open Window/Preferences.
Find PDE/Target Platform
Select your (active) target platform
Click Edit
Click Add
Select "Software Site"
Click Next
In "Work With" type: http://download.eclipse.org/eclipse/updates/4.8 (replace 4.8 with your version)
Check "Eclipse RCP Target Components"
Check "Equinox Target Components"
Uncheck "Include required software"
Check "Include all environments"
Press Finish
Press Finish
Press OK
I'm trying to install orientdb server on my Mac (High Sierra, Version 10.13.3) after downloading Java ( Version 8 Update 191) but I'm getting "Unsupported major.minor version 52.0" error. Can you help?
Doing ./server.sh or ./console.sh returns:
removing old pid file
/Users/rony/Downloads/orientdb-3.0.9/bin/orient.pid Exception in
thread "main" java.lang.UnsupportedClassVersionError:
com/orientechnologies/orient/server/OServerMain : Unsupported
major.minor version 52.0 at java.lang.ClassLoader.defineClass1(Native
Method) at
java.lang.ClassLoader.defineClassCond(ClassLoader.java:637) at
java.lang.ClassLoader.defineClass(ClassLoader.java:621) at
java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:283) at
java.net.URLClassLoader.access$000(URLClassLoader.java:58) at
java.net.URLClassLoader$1.run(URLClassLoader.java:197) at
java.security.AccessController.doPrivileged(Native Method) at
java.net.URLClassLoader.findClass(URLClassLoader.java:190) at
java.lang.ClassLoader.loadClass(ClassLoader.java:306) at
sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301) at
java.lang.ClassLoader.loadClass(ClassLoader.java:247)
I'm currently having trouble running Junit tests created in Eclipse on IntelliJ.
My IntelliJ SDK is 1.8, the SDK of the project is 1.7, however, I'm not using any new features.
I've imported the project (properly, I hope) and the JUnit test along with the JDK is being shown in the "External Libraries" tab.
When I run my test I get an "initializationError", and when right clicking the "tests" directory and selecting "Run 'All Tests'" I get the error "No tests were found".
These are the Errors I get:
Exception in thread "main" java.lang.NoClassDefFoundError: org/hamcrest/SelfDescribing
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:467)
at java.net.URLClassLoader.access$100(URLClassLoader.java:73)
at java.net.URLClassLoader$1.run(URLClassLoader.java:368)
at java.net.URLClassLoader$1.run(URLClassLoader.java:362)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:361)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:264)
at com.intellij.junit4.JUnit46ClassesRequestBuilder.getClassesRequest(JUnit46ClassesRequestBuilder.java:50)
at com.intellij.junit4.JUnit4TestRunnerUtil.buildRequest(JUnit4TestRunnerUtil.java:91)
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:95)
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:42)
at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:234)
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:74)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:144)
Caused by: java.lang.ClassNotFoundException: org.hamcrest.SelfDescribing
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 25 more
Is there anything I can do?
You need the library hamcrest-core-1.3 on your class-path. See Getting Started
Exporting google vr unity SDK master sample file from unity and getting an error like Error building Player: CommandInvokationFailure: Unable to convert classes into dex format. See the Console for details.
Please see the complete error
Error building Player: CommandInvokationFailure: Unable to convert classes into dex format. See the Console for details.
C:\Program Files\Java\jdk1.7.0_51\bin\java.exe -Xmx2048M -Dcom.android.sdkmanager.toolsdir="C:/Users/Administrator/AppData/Local/Android/sdk\tools" -Dfile.encoding=UTF8 -jar "C:\Program Files\Unity\Editor\Data\PlaybackEngines\AndroidPlayer/Tools\sdktools.jar" -
stderr[
Exception in thread "main" java.lang.UnsupportedClassVersionError: com/android/dx/command/Main : Unsupported major.minor version 52.0
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:800)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:270)
at SDKMain.main(SDKMain.java:127)
]
stdout[
]
It seems to be a problem of mismatch between the JDK necessary for the google vr sdk and yours. You might need to update your JDK and Android SDK.
This links found another workaround:
link 1
link 2
I am on windows 7 64 bit and using eclipse indigo. I downloaded the latest version of jogl 2 and i have created an eclipse project following this link
https://sites.google.com/site/justinscsstuff/jogl-tutorial-2
this tutorial is old as the jars in the jogl download dont match and i have included all the jars and for each jar set the native libraries directory. I have written a small jogl test program that creates a GLProfile, GlCapabilities and an awt frame. I get this exception:
java.lang.NoClassDefFoundError: com/jogamp/common/type/WriteCloneable
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClassCond(ClassLoader.java:632)
at java.lang.ClassLoader.defineClass(ClassLoader.java:616)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:283)
at java.net.URLClassLoader.access$000(URLClassLoader.java:58)
at java.net.URLClassLoader$1.run(URLClassLoader.java:197)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClassCond(ClassLoader.java:632)
at java.lang.ClassLoader.defineClass(ClassLoader.java:616)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:283)
at java.net.URLClassLoader.access$000(URLClassLoader.java:58)
at java.net.URLClassLoader$1.run(URLClassLoader.java:197)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
Caused by: java.lang.ClassNotFoundException: com.jogamp.common.type.WriteCloneable
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
... 24 more
Exception in thread "main"
seems like im missing a jar..could any let me know what im doing wrong here?
I am using the jogl-all.jar from Matlab 2014a. The error above disappeared and everything run smoothly when I added the library glugen-rt.jar.
(remember also to -Djava.library.path=/path/to/native/files when you execute your application, in my case this was -Djava.library.path=/Applications/MATLAB_R2014a.app/bin/maci64)
Try to add gluegen as well.
For example
<dependency>
<groupId>org.jogamp.jogl</groupId>
<artifactId>jogl-all</artifactId>
<version>2.0-rc11</version>
</dependency>
AND
<dependency>
<groupId>org.jogamp.gluegen</groupId>
<artifactId>gluegen-rt-main</artifactId>
<version>2.0-rc11</version>
</dependency>
I had a similar problem with the JOGL jar files. See here. Also, check out the tutorials on the jogamp wiki (by the looks of it Wade is pretty active on the wiki).