I am recieving the following error when running the command bin/fuse in the jboss-fuse-6.2.0.redhat-133 directory
Unrecognized VM option 'UnsyncloadClass'
Can anyone help with this?
It seems you are using JDK 11.
The flag UnsyncloadClass (as well as MustCallLoadClassInternal) were deprecated. If they followed the protocol, they deprecated in Version 10, obsoleting them in 11, and removal in 12.
Related
I'm new to java and I met this problem when I learnt about running junits testing in intelliJ. I changed run/debuug configurations templates for new projects->Junit->VM options to "-XX:+ShowCodeDetailsInExceptionMessages". Then when I ran the test file, it showed error message like :
Unrecognized VM option 'ShowCodeDetailsInExceptionMessages'
Error: Could not create the Java Virtual Machine.
Error: A fatal exception has occurred. Program will exit.
Could anyone help me figure out this problem? Thanks
The option -XX:+ShowCodeDetailsInExceptionMessages was introduced in Java 14 (https://openjdk.java.net/jeps/358), I suppose that you are trying to use this option in a previous version of Java.
I have jdk-15.0.1 on my laptop, and have installed HBASE (hbase-2.2.6 version).
I followed every steps to install HBASE on this link : https://www.learntospark.com/2020/08/setup-hbase-in-windows.html
The problem is that when I try running HBASE in my command line using :
start-hbase.cmd
I get the following error message :
Unrecognized VM option 'UseConcMarkSweepGC'
Error: Could not create the Java Virtual Machine.
Error: A fatal exception has occurred. Program will exit.
ERROR: Could not determine the startup mode.
As a beginner, I tried scouring around for information, but nothing that matches my problem.
I would be glad for any help you could give me.
CMS garbage collector is removed in JDK 15, thus UseConcMarkSweepGC too is removed.
JEP 363: Remove the Concurrent Mark Sweep GC
So, either you should switch back to java 8 or 11, or you should modify below line:
set HBASE_OPTS="-XX:+UseConcMarkSweepGC" "-Djava.net.preferIPv4Stack=true"
with
set HBASE_OPTS="-Djava.net.preferIPv4Stack=true"
I am trying to run some JUnit tests over cassandra. But I get the following error:
[08/12/19 10:48:40:411](main)([]) INFO - c.h.c.c.e.EmbeddedCassandra - Starting embedded Cassandra server.
8/12/19 10:48:41:497](main)([]) ERROR - o.a.c.u.NativeLibraryDarwin - Failed to link the C library against JNA. Native methods will be unavailable.
java.lang.UnsatisfiedLinkError: /private/var/folders/ty/wl4gxf352m328101m101hwh40000gn/T/jna--321969061/jna10641195286884112036.tmp: dlopen(/private/var/folders/ty/wl4gxf352m328101m101hwh40000gn/T/jna--321969061/jna10641195286884112036.tmp, 1): no suitable image found. Did find:
/private/var/folders/ty/wl4gxf352m328101m101hwh40000gn/T/jna--321969061/jna10641195286884112036.tmp: code signature in (/private/var/folders/ty/wl4gxf352m328101m101hwh40000gn/T/jna--321969061/jna10641195286884112036.tmp) not valid for use in process using Library Validation: mapped file has no cdhash, completely unsigned? Code has to be at least ad-hoc signed.
It was running well until I changed to mac mojave and re-setup everything. I think it is an issue related to permissions may be or JNA?
IDE: IntelliJ
Java: AdoptOpenJDK 11.0.4
JNA: 4.2.2
Any kind of help will be highly appreciated!
This is the result of a bug in AdoptOpenJDK jdk-11.0.4+11 on macOS, persisting through 11.2.
It will be fixed in the jdk-11.0.4+11.3 release.
If you can't wait for the new release you can temporarily resolve by downgrading to 11.0.3+7
What version of cassandra unit? Support for java 11 (https://issues.apache.org/jira/browse/CASSANDRA-9608) isn't in until cassandra 4 and I dont think embedded cassandra is setup for that yet
I used h2o package before. But it can't do now.
I only have 64-bit java.
I have java.exe D:\java\New Foder\java8\bin. Also added path.
This is error message.
> h2o.init()
H2O is not running yet, starting it now...
<simpleError in system2(command, "-version", stdout = TRUE, stderr = TRUE): '"D:\java\New Folder\java8;D:\java;\bin\java.exe"' not found>
Error in value[[3L]](cond) :
You have a 32-bit version of Java. H2O works best with 64-bit Java.
Please download the latest Java SE JDK 8 from the following URL:
http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html
In addition: Warning message:
In normalizePath(path.expand(path), winslash, mustWork) :
path[1]="D:\\java\\New Folder\\java8;D:\java;/bin/java.exe": 파일 이름, 디렉터리 이름 또는 볼륨 레이블 구문이 잘못되었습니다
I checked regedit. There seems to be no problem. How can it be solved?
Trying to move my app from java 8 to java 11 faced with exception
"javax.net.ssl.SSLHandshakeException: extension (10) should not be presented in server_hello"
I found that this issue will be fixed in 11.0.3 (eta Q2+ 2019)
JDK 11 SSL Error on valid certificate (working in previous versions)
But, is there fast workaround right now? Maybe I can adjust some settings to get rid of this problem?
PS. I use Spring RestTemplate