使用rm -rf /Library/Java/JavaVirtualMachines/jdkmajor.minor.macro[_update].jdk在Mac上卸载jdk 7后出现问题

Question

I have problems after uninstalling jdk 7 on mac book pro with rm -rf /Library/Java/JavaVirtualMachines/jdkmajor.minor.macro[_update].jdk

I also have installed java 8 and Intellij works well. But any attempt to run java -version or mvn crashes with error:

dyld: could not load inserted library '/Library/Java/JavaVirtualMachines/jdk1.7.0_55.jdk/Contents/Home/jre/lib/libjsig.dylib' because image not found

[1] 1216 trace trap mvn

And in the same time I can build all the projects with IntelliJ.

I even can't run vim - I have the same mistake. So, my questions: 1. What is the correct way to uninstall JDK? 2. What should I do in my situation to restore the system?

Answer 1

Have a look in your .bash_profile and try to look for

export DYLD_INSERT_LIBRARIES=/usr/lib/libSaturnFE.dylib
export DYLD_FORCE_FLAT_NAMESPACE=1

or anything similar. These might be causing the problem you experience. Try commenting them out and reload your bash with

exec bash

and see if the problem persist.

Answer 2

As mentioned by mattias in his answer, your problem stems from a command in one of your bash startup files, that tells bash to load certain dynamic libraries before it attempts to run any command.

Using unset DYLD_INSERT_LIBRARIES will only solve this temporarily , for the current running terminal. So you should fix the problem permanently, by first running that command, and then editing your .bash_profile and .bashrc files with vim or nano .

If you see a line that says

export DYLD_INSERT_LIBRARIES=/Library/Java/JavaVirtualMachines/jdk1.7.0_55.jdk/Contents/Home/jre/lib/libjsig.dylib

just remove this line. If it inserts any additional libraries in addition to that libraries, just erase this particular library from /Library to libsig.dylib including the following : (if it's the last one, then the preceding : ).

Exit Terminal, run it again and make sure your problem has been solved.

The procedure you have been following for removing the JDK is the correct one as suggested by Oracle. The problem was that once in the history of that machine, you or whoever was using it added that library to the DYLD_INSERT_LIBRARIES environment variable and this caused the problem. Also, the reason why this did not affect IntelliJ is that it is not running through bash , so bash commands do not affect it.

If you want to remove any other Java version, you should do the same as you did before, but make sure in advance that nothing in DYLD_INSERT_LIBRARIES refers to something inside /Library/Java/JavaVirtualMachines .