I have a 8Gb of ram and I have a java version 1.8.0_111 (I added it in Environment Variables->System).
I downloaded a scala IDE for Eclipse scala-SDK-4.5.0-vfinal-2.11-win32.win32.x86_64, I can't install it, it shown an error this following:
A java Runtime Environment (JRE) or Java Development Kit (JDK) must be available in order to run Eclipse. No Java virtual machine was found after searching the following location:
E:\Download\scala-SDK-4.5.0-vfinal-2.11-win32.win32.x86_64\eclipse\jre\bin\javaw.exe
javaw;exe in your current PATH
Knowing that I followed this answer of #Mohamed Adel:
“Error occurred during initialization of VM; Could not reserve enough space for object heap” using -Xmx3G
Can you tell me where is the error in my steps ?
Related
I'm struggling to add OrTools to our Spring Boot project, basically what I've done is first try to add the dependency using gradle:
implementation 'com.google.ortools:ortools-java:9.2.9972'
implementation 'com.google.protobuf:protobuf-java:3.19.4'
But when using the CpModel we have an error on Protobuf even if it is downloaded by gradle:
java.lang.NoClassDefFoundError: com/google/protobuf/MessageOrBuilder
So I tried to load the dependency using the OrTools Loader:
Loader.loadNativeLibraries();
And Here I have another error and can't find the solution:
Resource ortools-darwin-aarch64/ was not found in ClassLoader jdk.internal.loader.ClassLoaders$AppClassLoader#3b192d32
Do you have any idea? Is there someone that has a working OrTools with spring?
(I'm on MacOS arm)
or-tools is a C++ library wrapped in java using swig. currently we only provide/support amd64 cpu arch and LInux/MacOS and windows platform.
I'll try to add a Java M1 issue but since we still don't have any M1 for testing and dev, don't expect support soon ;)
ps: https://github.com/google/or-tools/issues?q=apple+m1+
I did
brew install scala
brew install sbt
scala works fine for me, however when I try to run sbt, I get:
⇒ sbt
grep: warning: GREP_OPTIONS is deprecated; please use an alias or script
No java installations was detected.
Please go to http://www.java.com/getjava/ and download
siddhartha#Siddharthas-MacBook-Pro-2:~|
⇒ echo $JAVA_HOME
/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home
I checked the following 2 links but neither have a helpful answer:
No Java installation was detected while sbt update
Why does sbt report "No java installations was detected" with $JAVA_HOME set?
Any help appreciated.
My solution was to do a sudo. I suppose permissions for sbt in /usr/local are set for root when installed via brew.
The sbt script that launches java (sbt-launch-lib.bash) prints “No java installations was detected” (now “No Java Development Kit (JDK) installation was detected.”) if there is any error running java -version with the current environment variables JAVA_TOOL_OPTIONS, _JAVA_OPTIONS. So if either of these variables contains impossible options, sbt will give the misleading error instead of the actual error.
JAVA_TOOL_OPTIONS or _JAVA_OPTIONS might be misconfigured to have a too large memory usage (e.g. -Xms100g). Or it might be misconfigured to listen to a debug port (e.g. -agentlib:jdwp=transport=dt_sockerver=y,suspend=n,address=5005) that is already bound by another program.
The sbt script applies JAVA_OPTS and SBT_OPTS only after checking java -version, so if you set those instead, then you may get a better error message.
I have the following environment:
Windows 7 64-bit OS;
Eclipse Kepler SR2 32-bit + JDK 1.7 32-bit;
MobileFirst Platform Studio 6.3 20150106-1717
When I opened my eclipse I clicked on the green play button to start the development server, I got the following errors; or if I create a simple project and attempt to deploy it on the dev server, same errors come out; or if I delete the server and create a new one and then try to start it; or if I install 64-bit eclipse with 64-bit Java 7:
com.ibm.ws.kernel.boot.LaunchException: Caught unexpected exception java.lang.IllegalArgumentException: URI has an authority component
at com.ibm.ws.kernel.boot.internal.KernelBootstrap.rethrowException(KernelBootstrap.java:418)
at com.ibm.ws.kernel.boot.internal.KernelBootstrap.go(KernelBootstrap.java:183)
at com.ibm.ws.kernel.boot.Launcher.createPlatform(Launcher.java:131)
at com.ibm.ws.kernel.boot.Launcher.main(Launcher.java:55)
at com.ibm.ws.kernel.boot.cmdline.EnvCheck.main(EnvCheck.java:52)
Caused by: java.lang.IllegalArgumentException: URI has an authority component
at java.io.File.<init>(Unknown Source)
at com.ibm.ws.kernel.boot.cmdline.Utils.getInstallDir(Utils.java:38)
at com.ibm.ws.kernel.productinfo.ProductInfo.getAllProductInfo(ProductInfo.java:53)
at com.ibm.ws.kernel.boot.internal.KernelBootstrap.getProductInfoDisplayName(KernelBootstrap.java:395)
at com.ibm.ws.kernel.boot.internal.KernelBootstrap.go(KernelBootstrap.java:119)
... 3 more
Listening for transport dt_socket at address: 10777
CWWKE0005E: The runtime environment could not be launched.
CWWKE0018E: An exception occurred while launching the runtime environment: java.lang.IllegalArgumentException: URI has an authority component
I tried everything but no luck, so please diagnose this issue, thanks.
This is unrelated to MobileFirst Platform, and may be instead related to the problem described in the following IBM tech note: http://www-01.ibm.com/support/docview.wss?uid=swg21584343
It is unclear from the question and comments if the workspace is in a different network drive than the Eclipse folder. If yes, consider placing both in the the same "physical location".
I did realize my system location was out of sync thus I did open the jvm.options file and copy pasted the below configuration
-Dibm.worklight.admin.db.type=DERBY
-Dfile.encoding=UTF-8
-Duser.language=en
-Duser.country=US
-Djava.awt.headless=true
-Dwas.debug.mode=true
-agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=10777
-Dcom.ibm.websphere.ras.inject.at.transform=true
-Dcom.ibm.ws.jmx.connector.client.rest.readTimeout=180000
-Dibm.worklight.admin.db.type=DERBY
-Xmx1024m
-Dos.name=Windows
-DwlSyncStart=false
-Dibm.worklight.rhino.debug=transport=socket,address=9000
Which worked in my case , all the best.
I try to deploy a simple "Hello Word" in my local server GlasshFish 3, but at the deploy the console print this message
[#|2013-01-15T15:00:02.458+0100|SEVERE|glassfish3.1.2|
javax.enterprise.system.tools.admin.org.Exception while deploying the app
[HelloWorldEJB] :UnsupportedClassVersionError: Class ejb_other.PlaceAuctionItemBean
as unsupported major or minor version numbers, which are greater than those found
in the Java Runtime Environment version 1.6.0_27|#]
My JAVA_HOME has java version 1.6.0_27 (it refers to _C:\Program Files\Java\jdk1.6.0_27_), my Eclipse (indigo) project refers to java 1.6.0_27.
I think (i don't know how to verify) that GlasshFish refers to JAVA_HOME.
In my PC (Windows 7) I found 2 directory having java.exe:
C:\Windows\SysWOW64>java -version -->>java version "1.6.0_29"
C:\Windows\System32>java -version -->>java version "1.6.0_27"
I found more discussions about this exception (f.e. this or this ), but I need of something more specific for Eclipse/Glasshfish, because I can't to solve. I see that the JVM is the same for compilation and execution.
Post Scriptim
I add the screenshot about the places where I declare JVM: it's always 1.6.
one:
two:
three:
Where can I see that I compile with java 7 or it runs with another JVM?
ejb_other.PlaceAuctionItemBean was obviously compiled for Java 7 which won't work if you run it in a Java 6 JVM.
Found solution
There's another place where setting the compiler's options:
how do I get eclipse to use a different compiler version for Java?
I'm running java 1.6 in Eclipse on my Intel Mac. I'm using the 1.6.0 version under System/Library/Frameworks and set the default compiler to this in Eclipse.
How do I attach the source code?
First, I downloaded the 1.6 source from oracle, thinking I could attach that 'cause the installed 1.6 didn't have source.
When I click a java class to get the Source Code Editor, there are problems:
first, the top line says Compiled from File.java (version 1.5 : 49.0, super bit)
most important, when I attach the 1.6 source jar file, it gets an error:
An error has occurred. See error log for more details.
Unable to create resource org.eclipse.ui.internal.misc.ExternalProgramImageDescriptor#50417ba8
This also appears in the error log:
java.lang.ClassNotFoundException: org.eclipse.ui.internal.views.log.LogView
at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:506)
The Eclipse version is: Eclipse Java EE IDE for Web Developers.
Version: Helios Service Release 2
Build id: 20110218-0911
When I click for installation details, I get:
An internal error occurred during: "Fetching children of _SELF_".
Registry Directory not available: /Users/rfrail/Downloads/eclipse 2/p2/org.eclipse.equinox.p2.engine/profileRegistry.
I'm running Eclipse from my Download directory (it's worked fine in the past); however, there are 2 folders for Eclipse:
eclipse, and
eclipse 2.
So that looks like a source of confusion right there. Eclipse operates fine otherwise.
Can you help, please?
http://java.decompiler.free.fr/ is your answer
it has an eclipse plugin which decompiles code in place