Java VisualVM (jvisualvm) tool throws warning "could not install some modules" at startup -
java visualvm (jvisualvm) tool throws warning "could not install modules" @ startup , doesn't start thereafter clicking jvisualvm warning screen ignore button.
system details:
1. java version "1.8.0" java hotspot (tm) 64-bit server vm (build 25.0-b69, mixed mode)
2. os debian 7.8 64bit
issue warning details below: warning - not install modules: org.netbeans.lib.profiler.common - none of modules providing capability org.netbeans.lib.profiler.common.profiler installed. org.netbeans.modules.profiler.api - module org.netbeans.lib.profiler.common need installed. com.sun.tools.visualvm.core - module org.netbeans.modules.profiler.api need installed. com.sun.tools.visualvm.core - module org.netbeans.lib.profiler.common need installed. com.sun.tools.visualvm.core - module named org.netbeans.modules.profiler/2 needed , not found. com.sun.tools.visualvm.host - module com.sun.tools.visualvm.core need installed. com.sun.tools.visualvm.host.views - module com.sun.tools.visualvm.host need installed. com.sun.tools.visualvm.host.views - module com.sun.tools.visualvm.core need installed. com.sun.tools.visualvm.application - module com.sun.tools.visualvm.host need installed. com.sun.tools.visualvm.application - module com.sun.tools.visualvm.core need installed. com.sun.tools.visualvm.tools - module com.sun.tools.visualvm.host need installed. com.sun.tools.visualvm.tools - module com.sun.tools.visualvm.core need installed. com.sun.tools.visualvm.tools - module com.sun.tools.visualvm.application need installed. com.sun.tools.visualvm.jvmstat - module com.sun.tools.visualvm.host need installed. com.sun.tools.visualvm.jvmstat - module com.sun.tools.visualvm.core need installed. com.sun.tools.visualvm.jvmstat - module com.sun.tools.visualvm.application need installed. com.sun.tools.visualvm.jvmstat - module com.sun.tools.visualvm.tools need installed. com.sun.tools.visualvm.coredump - module com.sun.tools.visualvm.core need installed. com.sun.tools.visualvm.coredump - module com.sun.tools.visualvm.tools need installed. com.sun.tools.visualvm.threaddump - module com.sun.tools.visualvm.core need installed. com.sun.tools.visualvm.threaddump - module com.sun.tools.visualvm.coredump need installed. com.sun.tools.visualvm.threaddump - module com.sun.tools.visualvm.application need installed. com.sun.tools.visualvm.threaddump - module com.sun.tools.visualvm.tools need installed. com.sun.tools.visualvm.heapdump - module named org.netbeans.modules.profiler.heapwalker needed , not found. com.sun.tools.visualvm.heapdump - module com.sun.tools.visualvm.core need installed. com.sun.tools.visualvm.heapdump - module com.sun.tools.visualvm.coredump need installed. com.sun.tools.visualvm.heapdump - module com.sun.tools.visualvm.application need installed. com.sun.tools.visualvm.heapdump - module com.sun.tools.visualvm.tools need installed. com.sun.tools.visualvm.application.views - module com.sun.tools.visualvm.threaddump need installed. com.sun.tools.visualvm.application.views - module com.sun.tools.visualvm.host need installed. com.sun.tools.visualvm.application.views - module com.sun.tools.visualvm.core need installed. com.sun.tools.visualvm.application.views - module com.sun.tools.visualvm.coredump need installed. com.sun.tools.visualvm.application.views - module com.sun.tools.visualvm.heapdump need installed. com.sun.tools.visualvm.application.views - module com.sun.tools.visualvm.application need installed. com.sun.tools.visualvm.application.views - module com.sun.tools.visualvm.tools need installed. com.sun.tools.visualvm.jvm - module com.sun.tools.visualvm.threaddump need installed. com.sun.tools.visualvm.jvm - module com.sun.tools.visualvm.host need installed. com.sun.tools.visualvm.jvm - module com.sun.tools.visualvm.core need installed. com.sun.tools.visualvm.jvm - module com.sun.tools.visualvm.heapdump need installed. com.sun.tools.visualvm.jvm - module com.sun.tools.visualvm.application need installed. com.sun.tools.visualvm.jvm - module com.sun.tools.visualvm.tools need installed. com.sun.tools.visualvm.sa - module com.sun.tools.visualvm.host need installed. com.sun.tools.visualvm.sa - module com.sun.tools.visualvm.core need installed. com.sun.tools.visualvm.sa - module com.sun.tools.visualvm.coredump need installed. com.sun.tools.visualvm.sa - module com.sun.tools.visualvm.application need installed. com.sun.tools.visualvm.sa - module com.sun.tools.visualvm.tools need installed. com.sun.tools.visualvm.attach - module com.sun.tools.visualvm.host need installed. com.sun.tools.visualvm.attach - module com.sun.tools.visualvm.core need installed. com.sun.tools.visualvm.attach - module com.sun.tools.visualvm.application need installed. com.sun.tools.visualvm.attach - module com.sun.tools.visualvm.tools need installed. com.sun.tools.visualvm.modules.appui - module com.sun.tools.visualvm.core need installed. com.sun.tools.visualvm.modules.appui - module org.netbeans.modules.profiler.api need installed. com.sun.tools.visualvm.profiling - module named com.sun.tools.visualvm.core/0-1 needed , not found. com.sun.tools.visualvm.profiling - module named org.netbeans.modules.profiler/2 needed , not found. com.sun.tools.visualvm.profiling - module named com.sun.tools.visualvm.application/0-1 needed , not found. com.sun.tools.visualvm.profiling - module named org.netbeans.modules.profiler.snaptracer/1 needed , not found. com.sun.tools.visualvm.profiler - module com.sun.tools.visualvm.host need installed. com.sun.tools.visualvm.profiler - module com.sun.tools.visualvm.core need installed. com.sun.tools.visualvm.profiler - module named org.netbeans.modules.profiler/2 needed , not found. com.sun.tools.visualvm.profiler - module com.sun.tools.visualvm.application need installed. com.sun.tools.visualvm.profiler - module named org.netbeans.modules.profiler.utilities/1 needed , not found. com.sun.tools.visualvm.profiler - module com.sun.tools.visualvm.profiling need installed. com.sun.tools.visualvm.sampler - module named com.sun.tools.visualvm.heapdump/0-1 needed , not found. com.sun.tools.visualvm.sampler - module named com.sun.tools.visualvm.tools/0-1 needed , not found. com.sun.tools.visualvm.sampler - module named com.sun.tools.visualvm.core/0-1 needed , not found. com.sun.tools.visualvm.sampler - module org.netbeans.modules.profiler.api need installed. com.sun.tools.visualvm.sampler - module named com.sun.tools.visualvm.threaddump/0-1 needed , not found. com.sun.tools.visualvm.sampler - module org.netbeans.lib.profiler.common need installed. com.sun.tools.visualvm.sampler - module named org.netbeans.modules.profiler/2 needed , not found. com.sun.tools.visualvm.sampler - module named com.sun.tools.visualvm.application/0-1 needed , not found. com.sun.tools.visualvm.sampler - module named com.sun.tools.visualvm.coredump/0-1 needed , not found. com.sun.tools.visualvm.sampler - module named com.sun.tools.visualvm.profiling/0-1 needed , not found. com.sun.tools.visualvm.jmx - module com.sun.tools.visualvm.host need installed. com.sun.tools.visualvm.jmx - module com.sun.tools.visualvm.core need installed. com.sun.tools.visualvm.jmx - module com.sun.tools.visualvm.application need installed. com.sun.tools.visualvm.jmx - module com.sun.tools.visualvm.tools need installed. com.sun.tools.visualvm.host.remote - module com.sun.tools.visualvm.host need installed. com.sun.tools.visualvm.host.remote - module com.sun.tools.visualvm.core need installed. com.sun.tools.visualvm.host.remote - module com.sun.tools.visualvm.application need installed. com.sun.tools.visualvm.host.remote - module com.sun.tools.visualvm.tools need installed. java.lang.illegalargumentexception: not enabled: org.netbeans.modules.profiler.api @ org.netbeans.module.getclassloader(module.java:402) @ org.netbeans.standardmodule.getparentloader(standardmodule.java:526) @ org.netbeans.standardmodule.classloaderup(standardmodule.java:483) @ org.netbeans.modulemanager.enable(modulemanager.java:1026) @ org.netbeans.modulemanager.enable(modulemanager.java:970) @ org.netbeans.core.startup.modulelist.installnew(modulelist.java:301) @ org.netbeans.core.startup.modulelist.trigger(modulelist.java:237) @ org.netbeans.core.startup.modulesystem.restore(modulesystem.java:262) @ org.netbeans.core.startup.main.getmodulesystem(main.java:142) @ org.netbeans.core.startup.main.getmodulesystem(main.java:111) @ org.netbeans.core.startup.main.start(main.java:268) @ org.netbeans.core.startup.topthreadgroup.run(topthreadgroup.java:84) @ java.lang.thread.run(thread.java:744)
root cause jvisualvm user directory pointing old java reference deleted , corrected. details follows:
in order find out details of issue; ran jvisualvm console option
**./jvisualvm -j-dnetbeans.logger.console=true which gave me output , details shown below:
log session: monday, august 8, 2016 12:39:55 edt >system info: product version = java visualvm operating system = linux version 3.2.0-4-amd64 running on amd64 java; vm; vendor = 1.8.0; java hotspot(tm) 64-bit server vm 25.0-b69; oracle corporation runtime = java(tm) se runtime environment 1.8.0-b129 java home = /usr/local/jetty/common/java/jdk8/jre system locale; encoding = en_us (visualvm); utf-8 home directory = /root current directory = /usr/local/jetty/common/java/jdk8/bin user directory = /root/.visualvm/7u60 cache directory = /root/.cache/visualvm/7u60 installation = /usr/local/jetty/common/java/jdk8/lib/visualvm/visualvm /usr/local/jetty/common/java/jdk8/lib/visualvm/profiler /usr/local/jetty/common/java/jdk8/lib/visualvm/platform boot & ext. classpath = /usr/local/jetty/common/java/jdk8/jre/lib/resources.jar:/usr/local/jetty/common/java/jdk8/jre/lib/rt.jar:/usr/local/jetty/common/java/jdk8/jre/lib/sunrsasign.jar:/usr/local/jetty/common/java/jdk8/jre/lib/jsse.jar:/usr/local/jetty/common/java/jdk8/jre/lib/jce.jar:/usr/local/jetty/common/java/jdk8/jre/lib/charsets.jar:/usr/local/jetty/common/java/jdk8/jre/lib/jfr.jar:/usr/local/jetty/common/java/jdk8/jre/classes:/usr/local/jetty/common/java/jdk8/jre/lib/ext/localedata.jar:/usr/local/jetty/common/java/jdk8/jre/lib/ext/zipfs.jar:/usr/local/jetty/common/java/jdk8/jre/lib/ext/sunpkcs11.jar:/usr/local/jetty/common/java/jdk8/jre/lib/ext/nashorn.jar:/usr/local/jetty/common/java/jdk8/jre/lib/ext/dnsns.jar:/usr/local/jetty/common/java/jdk8/jre/lib/ext/sunec.jar:/usr/local/jetty/common/java/jdk8/jre/lib/ext/jfxrt.jar:/usr/local/jetty/common/java/jdk8/jre/lib/ext/sunjce_provider.jar:/usr/local/jetty/common/java/jdk8/jre/lib/ext/cldrdata.jar application classpath = /usr/local/jetty/common/java/jdk8/lib/visualvm/platform/lib/boot.jar:/usr/local/jetty/common/java/jdk8/lib/visualvm/platform/lib/org-openide-modules.jar:/usr/local/jetty/common/java/jdk8/lib/visualvm/platform/lib/org-openide-util.jar:/usr/local/jetty/common/java/jdk8/lib/visualvm/platform/lib/org-openide-util-lookup.jar:/usr/local/jetty/common/java/jdk8/lib/visualvm/platform/lib/locale/boot_ja.jar:/usr/local/jetty/common/java/jdk8/lib/visualvm/platform/lib/locale/boot_zh_cn.jar:/usr/local/jetty/common/java/jdk8/lib/visualvm/platform/lib/locale/org-openide-modules_ja.jar:/usr/local/jetty/common/java/jdk8/lib/visualvm/platform/lib/locale/org-openide-modules_zh_cn.jar:/usr/local/jetty/common/java/jdk8/lib/visualvm/platform/lib/locale/org-openide-util_ja.jar:/usr/local/jetty/common/java/jdk8/lib/visualvm/platform/lib/locale/org-openide-util-lookup_ja.jar:/usr/local/jetty/common/java/jdk8/lib/visualvm/platform/lib/locale/org-openide-util-lookup_zh_cn.jar:/usr/local/jetty/common/java/jdk8/lib/visualvm/platform/lib/locale/org-openide-util_zh_cn.jar:/usr/local/jetty/common/java/jdk8/lib/dt.jar:/usr/local/jetty/common/java/jdk8/lib/tools.jar startup classpath = /usr/local/jetty/common/java/jdk8/lib/visualvm/platform/core/core.jar:/usr/local/jetty/common/java/jdk8/lib/visualvm/platform/core/org-openide-filesystems.jar:/usr/local/jetty/common/java/jdk8/lib/visualvm/platform/core/locale/org-openide-filesystems_zh_cn.jar:/usr/local/jetty/common/java/jdk8/lib/visualvm/platform/core/locale/core_ja.jar:/usr/local/jetty/common/java/jdk8/lib/visualvm/platform/core/locale/org-openide-filesystems_ja.jar:/usr/local/jetty/common/java/jdk8/lib/visualvm/platform/core/locale/core_zh_cn.jar:/usr/local/jetty/common/java/jdk8/lib/visualvm/visualvm/core/com-sun-tools-visualvm-modules-startup.jar:/usr/local/jetty/common/java/jdk8/lib/visualvm/visualvm/core/locale/com-sun-tools-visualvm-modules-startup_ja.jar:/usr/local/jetty/common/java/jdk8/lib/visualvm/visualvm/core/locale/com-sun-tools-visualvm-modules-startup_zh_cn.jar:/usr/local/jetty/common/java/jdk8/lib/visualvm/visualvm/core/locale/core_visualvm.jar ----------------------------------------------------------- everything fine in terms of jdk8 , home etc. user directory pointing non existing java path , traced in linux filesystem:
user directory = /root/.visualvm/7u60 in order solve problem; deleted /root/.visualvm/7u60 directory in os. ran ./jvisualvm again , worked without issue.
earlier tried running ./jvisualvm --help option seen jdkhome , tried changing jdkhome no luck. removing folder os worked me.
wow! great!!
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