jdk-14.0.1 VM java.lang.NullPointerException 初始化期间发生错误

Question

I installed jdk-14.0.1 in my computer and I set Environment variable for that, when I give command java or java -version it gives below exception.

Error occurred during initialization of VM
java.lang.NullPointerException
        at java.lang.System.getProperty(java.base/System.java:850)
        at sun.security.action.GetPropertyAction.privilegedGetProperty(java.base/GetPropertyAction.java:105)
        at java.nio.charset.Charset.defaultCharset(java.base/Charset.java:605)
        at java.lang.StringCoding.decode(java.base/StringCoding.java:329)
        at java.lang.String.<init>(java.base/String.java:610)
        at java.lang.String.<init>(java.base/String.java:632)
        at jdk.internal.util.SystemProps$Raw.vmProperties(java.base/Native Method)
        at jdk.internal.util.SystemProps$Raw.cmdProperties(java.base/SystemProps.java:253)
        at jdk.internal.util.SystemProps.initProperties(java.base/SystemProps.java:55)
        at java.lang.System.initPhase1(java.base/System.java:2002)

my system configuration is like-

1. Ram: 8.00 GB(7.89 GB usable)
2. OS: windows 10.
3. processor: Intel(R) Core i5-8265U.
4. System type: 64-bit Opearting System, x64-based perocessor.

Answer 1

This can* happen if you have the default locale to Codepage 65001 - UTF-8.

To "fix" this on Windows 10:

• Open the control panel
• Select "Region"
• Go to the "Administrative" tab
• Click on the "Change system locale" button
• Uncheck "Beta: Use Unicode UTF-8 for worldwide support".
• Save. You should get a prompt to restart your computer. Do that.

* It should not, however.

Answer 2

For those whoes code page is not 65001 but come acorss the same problem. Suggest try openjdk 14. It works for me.

Answer 3

Solution for windows 10:

Open command prompt(CMD)

1. open command prompt.
2. type chcp and hit Enter.
3. if output for chcp command is: Active code page: 65001 then: go to the control panel -> Region -> "Administrative" tab -> Change system locale -> Uncheck "Beta: Use Unicode UTF-8 for worldwide support".
4. Restart your PC.
5. Again check system local for 'beta' if it is unchecked then all is ok.
6. if it is checked again then try to change your native language to English.