JRE 1 7 - java version - returns java lang NoClassDefFoundError java lang Object

Question

When running any java application  or just  java   the jvm fails      Error occurred during initialization of VM   java lang NoClassDefFoundError  java lang Object   Here is a list of wrong answers    The correct Java home directory  including the  bin directory  is on the global PATH JAVA HOME is set correctly Executing the command java -fullversion works    java -fullversion    java full version  1 7 0 05-b05   The symbolic links in  usr java all point to the correct java installation I did not install any  default  java when I created the system java -version fails   same error as above Issuing the commands from under the directory structure of the java installation does not work either This is 64-bit java for a 64-bit   Any ideas

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So  I went on trying everything and at last it seems that reinstalling java after uninstalling it fixed my problem

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In window 10 there is already a path present in env as C   gt ProgramData Oracle Java javapath that holds symlinks to the executables   When I install a new version and remove that from my environment variable  my all project start showing it    I am using eclipse oxygen in window 10  To resolve it -   I just remove path C   gt ProgramData Oracle Java javapath from environment variable and added new env as JAVA HOME and  JAVA HOME  bin in path I reinstall the jdk with admin privileges  delete the previous JRE folder  Open your eclipse project   right click   Goto Proprieties  In Libraries   Now remove JRE System Library   Click on Add Library    select  JRE System Library    Click on Next   Select  Workspace default JRE jre1 8 x xxx     finish   My issue is resolved    Hope it will help you

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This fixed the problem I had on CentOS  sudo yum install java-1 8 0-openjdk-devel   also see setting JAVA HOME  amp  CLASSPATH in CentOS 6

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Just did this on Solaris and ran into this identical problem where even  java -version  does not work   There is a reason that the 64 bit versions of the distro are WAY smaller than the 32-bit   It is indeed as stated above    In other words  to get a fully working 64-bit installation  you must first run the 32-bit installation  and follow that up with a 64-bit installation if you have a 64bit capable machine     So I ran the installer for the 32-bit      sh jdk-6u131-solaris-sparc sh   Then I ran the installer for the 64-bit      sh jdk-6u131-solaris-sparcv9 sh   This gives me several java executables to choose from      find   -name java   jdk1 6 0 131 db demo programs scores java   jdk1 6 0 131 db demo programs vtis java   jdk1 6 0 131 bin java   jdk1 6 0 131 bin sparcv9 java   jdk1 6 0 131 jre bin java   jdk1 6 0 131 jre bin sparcv9 java   The sparcv9 java s are the 64bit versions and they work with  -version  when installed alongside the 32bit JDK      jdk1 6 0 131 bin sparcv9 java -version java version  1 6 0 131  Java TM  SE Runtime Environment  build 1 6 0 131-b32  Java HotSpot TM  64-Bit Server VM  build 20 131-b32  mixed mode    -Dan

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In my case  I use a windows 8 1  installed jdk1 8 0 77   I did three things    I deleted previous jdks I renamed the java exe file inside C  Windows System32 I also removed C  ProgramData Oracle Java javapath in my PATH  echo  PATH     and voila got it fixed

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if any problem for JAVA installation  version  C  Where JAVA   will give the location of java it picking up  If you have any path other than your installation  remove those files or rename it  may be as  backup   you will get proper version of java file

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if you do  chmod u rx  on the java binary and run it  it will the unpack the jar files and you can do a java -version without runtime errors

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I faced same issue  I have installed two java version hence it caused this issue  to confirm this go and click java icon in control panel if doesnt open then issue is same  just go and uninstall one version  piece of cake  thanks

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I was facing same issue  Error occurred during initialization of VM java lang NoClassDefFoundError  java lang Object  Follow below steps to resolve issue    Step 1  Goto C  Program Files  and search for Java folder   Step 2  Delete C  Program Files Java folder   Step 3  Download new Jdk for your version 32 bit 64 bit from http   www oracle com technetwork java javase downloads index html  Step 4  Install JDK  Step 5  Now Set JAVA HOME to  C  Program Files Java jdk1 8 0 91   Step 6  Open command prompt and enter java -version   It works

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If you install a 64-bit version without first installing 32-bit  this error will occur despite fixing all of the other issues   I have a brand new Dell i7 64-bit Windows 10 Pro machine running Java 8u71   After having added my  path  and  classpath  to environment variables and trying several other fixes  uninstalling 64-bit  installing 32-bit then reinstalling 64-bit fixed it   Some of the issues  like not having your files unpacked  etc  that have been mentioned as possible causes may still be causing issues  but if you don t do this  as well  the other fixes won t work

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Quick Solution for impatient people    On Windows machines  try this  Go to C  Windows System32 directory and delete java exe  or rename it to something like java exe old    Since at least 1 6  there should not be a java exe in the Windows directory  If there is  it s a leftover from something   A bit more reading    I m really suprised that a question from 2012 doesn t have an approved answer yet and I ve actually encountered the same issue in 2015 on my Win 7 32-Bit OS   So what did happen   Basically  everything was working fine  I downloaded H2 database and when I tried to start H2 Console  Command Line  I got   Error occurred during initialization of VM java lang NoClassDefFoundError  java lang Object   I found this question and I was able to confirm the same symptoms   JAVA HOME is set correctly   echo  JAVA HOME  C  Program Files Java jdk1 6 0 26   java -version fails  while java --fullversion works fine   java -fullversion java full version  1 6 0 45-b06    SOLUTION  Go to C  Windows System32 directory and delete  I actually renamed  java exe file      Now  I get   java -version java version  1 6 0 26  Java TM  SE Runtime Environment  build 1 6 0 26-b03  Java HotSpot TM  Client VM  build 20 1-b02  mixed mode  sharing    and H2 Console  Command Line  works fine as well   Credits go to the last post in this forum  https   bukkit org threads java-lang-noclassdeffounderror-java-lang-object 70450

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I have the some problem on x86 64 Linux installations with JDK 1 7 0 40 i586  I figured out that the problem is that rpm can t unpack jar files  as mentioned by Rigg802  though rpm completes marking success    Unpacking JAR files            rt jar     var tmp rpm-tmp zLzkkb   usr java jdk1 7 0 40 bin unpack200   lib ld-linux so 2  bad ELF interpreter  No such file or directory Error  unpack could not create JAR file            usr java jdk1 7 0 40 jre lib rt jar   File  lib ld-linux so 2 is provided by glibc-2 12-1 107 el6 4 4 i686 which is not among rpm deps of jdk rpm   Oracle JDK rpm also requires 32 bit versions of libgcc-4 4 7-3 el6 i686 to be installed  So  workaround is to install glibc-2 12-1 107 el6 4 4 i686 and libgcc-4 4 7-3 el6 i686 first

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This problem stems from an improper Java installation   Possibility 1     NOTE  This scenario only applies to Java 8 and prior  Beginning with Java 9  the JRE is structured differently  rt jar and friends no longer exist  and Pack200 is no longer used    The Java standard library is contained in various JARs  such as rt jar  deploy jar  jsse jar  etc  When the JRE is packaged  these critical JAR files are compressed with Pack200 and stored as rt pack  deploy pack  jsse pack  etc  The Java installer is supposed to uncompress them  If you are experiencing this error  apparently that didn t happen   You need to manually run unpack200 on all  pack files in the JRE s lib  and lib ext  folders   Windows  To unpack one  pack file  for example rt pack   run     JAVA HOME  bin unpack200  -r -v rt pack rt jar   To recursively unpack all  pack files  from the JRE root run   for  r  f in    pack  do   JAVA HOME  bin unpack200 exe  -r -q   f     pf  nf jar     nix  To unpack one  pack file  for example rt pack   run    usr bin unpack200 -r -v rt pack rt jar   To recursively unpack all  pack files  from the JRE root run   find -iname    pack  -exec sh -c   usr bin unpack200 -r -q       echo      sed  s         pack  1jar          Possibility 2  You misinstalled Java in some other way  Perhaps you installed without admin rights  or tried to simply extract files out of the installer  Try again with the installer and or more privileges  Or  if you don t want to use the installer  use the  tar gz Java package instead

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Another answer could be to use the tar gz file instead in the Linux case  There seem to be something like that also for the solaris platform  This way all files will already be in the expected format and there won t be any unpacking issues

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This problem happens when you install the JDK by  uncompressing  it instead of  executing  it    By example   unzip jdk-6u45-linux-x64 bin   wrong   sh   jdk-6u45-linux-x64 bin    right    In the first scenario  the runtime libraries  as rt jar  don t get automatically uncompresessed  thus  you can find the rt pack files  etc  instead of the  jar ones

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It seems that for a 64 bit architecture you have to install both the 32-bit version and the 64-bit version of jre  architecture independent files as rt jar are distributed only in the 32-bit version    Remember then to pay attention to include the correct java executable on the global PATH environment variable

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You are most probably missing a file called rt jar in your installation which has the class file for java lang Object  Check your install files etc   In particular  note that a 64-bit intsaller overlays  or installs  next to   an existing 32-bit installation  In other words  to get a fully working 64-bit installation  you must first run the 32-bit installation  and follow that up with a 64-bit installation if you have a 64bit capable machine     If instead you do just a 64-bit installation you will be missing certain files in the installation and will get errors such as the one above

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You cannot install just the 64bit  you must first install the 32bit and then add the 64bit components   From java com      Installing the JRE on a 64-bit system that allows a 32-bit JVM is a two-step process  first  install the 32-bit JRE and then install the additional support for 64-bit operations  The  file names are as follows

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For Java 8 on a  nix OS  go to  lt jdk root gt  jre lib  for me   usr java jdk1 8 0 05 jre lib   From this directory  execute         bin unpack200 rt pack rt jar       bin unpack200 jsse pack jsse rar       bin unpack200 charsets pack charsets jar   To prevent version problems in case you have another JRE installed  use the same unpack200 that ships with the JRE you are fixing     that is  from the command line  use       bin unpack200  for me  this expands to  usr java jdk1 8 0 05 bin unpack200   not just unpack200

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I had the same problem recently  In my case my windows 7 machine automatically downloaded java and added C  ProgramData Oracle Java javapath to the beginning of my path environment variable  which messed up my java  Once I got rid of that from the path  it worked

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On Windows 10  I was facing the same issue with JRE 1 8  8u121   Typing       java -version   the cmd prompt returns  Error occurred during initialization of VM java lang NoClassDefFoundError  java lang Object   All the other commands  echo  JAVA HOME   echo  JRE HOME   echo  PATH   java -fullversion worked fine   Going to environment variables on system administration panel  remove from PATH the link C  ProgramData Oracle Java javapath  and be sure to have set in PATH the link to C  Program Files Java Folder bin   After that  check if in C  Windows System32 exists a java exe file  if true  delete that file   Typing now java -version it works fine

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Quick fix that worked for me   for file in   find   JAVA HOME  -name   pack   do      unpack200    file      test file  pack jar    done

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I have faced the similar issue and found that the symlink in program data C  ProgramData Oracle Java javapath  was wrong  I have given the correct path and it worked  Details on how to correct the program data is available here

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Just install the jre again  It simply solved my problem   SonarQube startup batch started to give this error after I installed jdk

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Go to control panel  uninstall the java related stuff close eclipse if opened   then re-install java and open eclipse  clean projects

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I found that this error occurred when I extracted the  rpm file   I then removed that folder and downloaded jdk-7u79-linux-x64 tar gz for Linux 64 and extracted the contents of this file instead  Also      export JAVA HOME  opt java jdk1 7 0 79     export JDK HOME  opt java jdk1 7 0 79     export PATH   JAVA HOME  bin

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I downloaded new JDK today  1 8 0 73  started c  gt  java exe and got the infamous    Error occurred during initialization of VM java lang NoClassDefFoundError  java lang Object    I just wanted to share my working solution on here   When I cd ied into the jdk bin folder  Java would run fine so I knew it was the PATH  I set PATH to just  jdk bin at CMD to prove it and it worked   So  one of the folders in the PATH must have had java exe that was causing the conflict  I thought  As it turned out  it was C   gt ProgramData Oracle Java javapath that holds symlinks to the executables    java exe was pointing to jre bin  The file was corrupt  when I started  jre bin java exe--the exact same error  Bingo  I re-installed JRE and the problem went away  Happy coding

[java] JRE 1.7 - java version - returns: java/lang/NoClassDefFoundError: java/lang/Object

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