[JAVA] [NetBeans] Story when it does not start

When I try to start NetBeans as usual, it doesn't start forever with nothing coming out ... Last time it started normally ... I will write down the time when this happened here. *environment OS: Windows 10 NetBeans: Apache NetBeans IDE 11.1 Java: JDK 13

Details of the error

When I try to launch it with a shortcut such as on the desktop, nothing happens. No error message is displayed. Now, try starting it at the command prompt.

C:\Program Files\NetBeans-11.1\netbeans\bin>netbeans.exe

 Again, it fails to start, but I get an error message.
 (I tried to reproduce it, but I couldn't get the error message because I couldn't. I'm sorry.)
 The error message will tell you where the log is coming from, so let's open that log. As an example of a place
 C: \ Users \ [user name] \ AppData \ Local \ Temp
 And the name of the log file is like hs_err_pid18004.log. (Since the number is the process ID, it must be a different number.) The first part of the contents looks like the following.
>\# A fatal error has been detected by the Java Runtime Environment:
>\#  EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x00007fff2a50f98a, pid=18004, tid=12052
>\# JRE version: Java(TM) SE Runtime Environment (13.0+33) (build 13+33)
>\# Java VM: Java HotSpot(TM) 64-Bit Server VM (13+33, mixed mode, sharing, tiered, >compressed oops, g1 gc, windows-amd64)
>\# Problematic frame:
>\# C  [awt.dll+0x8f98a]
>\# No core dump will be written. Minidumps are not enabled by default on client versions of >Windows
>\# If you would like to submit a bug report, please visit:
>\#   http://bugreport.java.com/bugreport/crash.jsp
>\# The crash happened outside the Java Virtual Machine in native code.
>\# See problematic frame for where to report the bug.

 EXCEPTION_ACCESS_VIOLATION is the content of the error, but it is presumed that it is a memory read violation. Where the problem happened is

>\# C  [awt.dll+0x8f98a]

 It is written in the place of.
 awt.dll is a file in java \ jdk-13 \ bin. This is a file that can't be tampered with ...
# This solution
 Eventually it started successfully, but what happened was

 * JDK downgraded *

 That is. Downgrade the JDK from 13 to 12.0.2
C:\Program Files\NetBeans-11.1\netbeans\etc
 Rewrite a part of the contents of netbeans.conf in as follows. (Numbers match version)

#### **`netbeans_jdkhome="C:\Program Files\Java\jdk-12.0.2"`**

This succeeded in starting!

If you have a similar experience, I would appreciate it if you could refer to it.


It started successfully, so I returned netbeans.conf to try to reproduce it to write this article and for some reason it still started. What the hell was that ...

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