I have created a simple application using the Google App Engine
Environment
Eclipse 4.2 (Juno) Plugin - http://dl.google.com/eclipse/plugin/4.2
JDK 7
I was able to create a sample application and run it locally.
When I try to deploy it gives me an error
Error in eclipse
Deploying 'applicationname' to Google has encountered a problem.
Unable to update app: The application contains Java 7 classes, but the --use_java7 flag has not been set.
See the deployment console for more details
Unable to update app: The application contains Java 7 classes, but the --use_java7 flag has not been set.
The logs show
Unable to update:
java.lang.RuntimeException: The application contains Java 7 classes, but the --use_java7 flag has not been set.
at com.google.appengine.tools.admin.Application.createStagingDirectory(Application.java:576)
at com.google.appengine.tools.admin.AppAdminImpl.doUpdate(AppAdminImpl.java:370)
at com.google.appengine.tools.admin.AppAdminImpl.update(AppAdminImpl.java:53)
at com.google.appengine.eclipse.core.proxy.AppEngineBridgeImpl.deploy(AppEngineBridgeImpl.java:433)
at com.google.appengine.eclipse.core.deploy.DeployProjectJob.runInWorkspace(DeployProjectJob.java:148)
at org.eclipse.core.internal.resources.InternalWorkspaceJob.run(InternalWorkspaceJob.java:38)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:53)
I see someone has encountered the same error before
Failed to deploy to Google App Engine because --use_java7 flag has not been set
I installed JDK 6 but I could not get the application to work either.
What are my alternatives to getting the application to work? - some thoughts...
Use prior version of plug in?
Install JDK 6 by itself?
Some other options?
You have to use JDK 6.
Similar Question
Java Overview Docs
App Engine runs Java applications using the Java 6 virtual machine (JVM). The App Engine SDK supports Java 5 and later, and the Java 6 JVM can use classes compiled with any version of the Java compiler up to Java 6.
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virtual studio code say Exception: Build process failed.
I think I found the problem you have
java version openjdk 11.0.12 2021-07-20
and you mustn't have any Java JDK version after Java 8, to explain why, all you need to know is that Google doesn't support any java version after 8 it's because that Google had a lawsuit with oracle (who support Java) for not fitting the standards with the new versions of Java, that is why google is trying to replase it with Kotlin, so:
uninstall java and
install Java 8 from here
If it still not working, get me the error and will update the answer, but now we solved the Java problem.
I have created a sample application using service fabric with Docker support. the VS version is 2017 community, Docker community edition version 18.04.0-ce-win62 (17151) and Microsoft Azure service fabric SDK 3.1.269.
I am getting the below error at run time:
System.TypeInitializationException: 'The type initializer for 'System.Fabric.Common.AppTrace' threw an exception.'
Inner Exception : DllNotFoundException: Unable to load DLL 'FabricCommon.dll': The specified module could not be found. (Exception from HRESULT: 0x8007007E)
That looks like a mismatch between the SDK version that you're using and the version the cluster is actually running. SDK 3.1 was targeted against runtime 6.2, and it can't run on lower runtimes (think about it - protocols or features may be missing).
TLDR at this point you may have the SDK installed locally, but your cluster probably isn't upgraded to 6.2 yet so you can't deploy things built against that SDK to those clusters until the upgrade happens. This is the normal process.
Supported cluster versions and SDKs are here. Also you may be running into this since 6.2 was deployed and then pulled back (a new version is going to start rolling out soon). You can find more information about that here, here, and here. I expect there to be more updates when the final build starts rolling out again.
I am working on app that is built on Java 1.4 and is hosted on Jboss 2.4.
I want to install jprofiler and connect to JVM to profile my app.
I wanted to know which version is compatible with my app before i go ahead purchase the license?
I am using version 7 for java 1.4
I am working on my own, learning about Java servlets and JSPs. My machine configuration as follows is from NetBeans' About page.
Product Version: NetBeans IDE 8.0.1 (Build 201408251540)
Updates: NetBeans IDE is updated to version NetBeans 8.0.1 Patch 1.1
Java: 1.8.0_20; Java HotSpot(TM) 64-Bit Server VM 25.20-b23
Runtime: Java(TM) SE Runtime Environment 1.8.0_20-b26
System: Windows 7 version 6.1 running on amd64; Cp1252; en_US (nb)
Tomcat 8.0.14 for Windows x64 is also installed as the web server.
I created a tiny web app yesterday, which was working as expected. When I went to the next exercise in the book, it was necessary to install MySQL. That seemed pretty straightforward, but alas, the install ran into a couple of problems. Unfortunately, I had not created a restore point right before that attempt, so I went back to the restore point created before the Tomcat install.
I re-installed Tomcat, and as a sanity check, started it, started NetBeans, tried to the run the tiny web app and after removing the server and re-adding it (because I got an error about the server) in NetBeans, got a message that I needed to set the build.dir.
For a tiny app, this is just annoying, but when working on a large app, it would be nice to avoid this problem. Another book author supplied app was working before, and is still working so...
Here are my questions:
1) Why/how would simply re-installing Tomcat cause a break in something that was working?
2) It seems as if the build.dir is set in build-impl.dir (in the app that is working) with a statement like (the opening and closing tags are missing so the statements would appear):
property location="${build.dir}/empty" name="empty.dir"
One post I read somewhere said that the above statement should be before the:
fail unless="build.dir">Must set build.dir
3) How/where is this build.dir set during the creation of a NetBeans web app? Is there some dialog box that I'm not completing correctly? If I miss it, is there a way to get back to it after the app gets "confused"?
Thanks in advance for any help on this.
I have centos installed on myserver and for development i have installed NetBeans IDE 6.9.1.
Now as glassfish 3 was not present on my server i tried to download it from netbeans itself using
add server panel but when i click on download i am getting I/O exception , following is the screen shot
can anyone tell me how to get rid off it ..
This is caused by some poor programming on my part and the CollabNet to Kenai migration of the java.net web sites.
The url for downloading became something like http://download.java.net/glassfish/... when the migration took place. 6.9.1 had shipped long before the migration took place and remapping this URL did not get put on 'the list' of URLs that had to be remapped.
Some of the coding problems have been addressed in 7.0 builds. Since 7.0 is nearly FCS, you may want to consider using those builds instead of 6.9.1...
Note: you download GlassFish Server Open Source Edition with the following link: http://dlc.sun.com.edgesuite.net/glassfish/3.0.1/release/glassfish-3.0.1-ml.zip