idea安裝后無法啟動！！（以前安裝過破解版、試用期激活版等的情況導致）

目前在用的是2020.1，想升級一下最新的2021.2。官網上下載的最新的，安裝。
安裝完成后，首次啟動，發現自動的在下載2020.1在用的插件。恩，很智能嘛。
插件下載完后，沒動靜了。雙擊圖面圖標，依然沒有動靜，+++，真不能誇。這下子完了，啟不來了。。。

• 問題描述：2021.2啟動不了，雙擊桌面圖標，沒有響應；CMD里輸入idea有報錯。

進入到安裝目錄C:\JetBrains\IntelliJ IDEA 2021.2\bin（我自己選的，默認不在這里），打開CMD。輸入idea，發現有報錯。

OpenJDK 64-Bit Server VM warning: Option UseConcMarkSweepGC was deprecated in version 9.0 and will likely be removed in a future release. 
 
  ====================================================
  =======        Jetbrains License Crack       =======
  =======           https://zhile.io           =======
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  @See: https://zhile.io/2018/08/17/jetbrains-license-server-crack.html
  
  @Version: 3.2.0, @Build Date: 2020-04-10
  
  
 Exception in thread "main" java.lang.reflect.InvocationTargetException
         at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
         at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
         at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
         at java.base/java.lang.reflect.Method.invoke(Method.java:566)
         at java.instrument/sun.instrument.InstrumentationImpl.loadClassAndStartAgent(InstrumentationImpl.java:513)
         at java.instrument/sun.instrument.InstrumentationImpl.loadClassAndCallPremain(InstrumentationImpl.java:525)
 Caused by: java.lang.RuntimeException: java.lang.NullPointerException
         at fuck_the_regulations_v320.en.b(en.java)
         at fuck_the_regulations_v320.dH.premain(dH.java)
         ... 6 more
 Caused by: java.lang.NullPointerException
         ... 8 more
 *** java.lang.instrument ASSERTION FAILED ***: "result" with message agent load/premain call failed at ./src/java.instrument/share/native/libinstrument/JPLISAgent.c line: 422
 FATAL ERROR in native method: processing of -javaagent failed, processJavaStart failed

錯誤信息一大堆，關鍵的一句

FATAL ERROR in native method: processing of -javaagent failed, processJavaStart failed
問題1：這個參數不是我添加進去的，哪來的???

打開idea.bat，在代碼最后處，加上輸出
// 這里是我加入的
echo %CLASS_PATH%
echo %ACC%
echo %IDE_PROPERTIES_PROPERTY%

// 下面的這些是原始的
"%JAVA_EXE%" ^
-cp "%CLASS_PATH%" ^
%ACC% ^
"-XX:ErrorFile=%USERPROFILE%\java_error_in_idea_%%p.log" ^
"-XX:HeapDumpPath=%USERPROFILE%\java_error_in_idea.hprof" ^
-Djava.system.class.loader=com.intellij.util.lang.PathClassLoader -Didea.vendor.name=JetBrains -Didea.paths.selector=IntelliJIdea2021.2 -Didea.jre.check=true ^
%IDE_PROPERTIES_PROPERTY% ^
com.intellij.idea.Main ^
%*
重新執行idea.bat（在CMD里哦），發現如下輸出

-Djb.vmOptionsFile="C:\Users\cpp\AppData\Roaming\JetBrains\IntelliJIdea2021.2\idea64.exe.vmoptions" "-Xms128m" "-Xmx1012m" "-XX:ReservedCodeCacheSize=240m" "-XX:+UseConcMarkSweepGC" "-XX:SoftRefLRUPolicyMSPerMB=50" "-ea" "-XX:CICompilerCount=2" "-Dsun.io.useCanonPrefixCache=false" "-Djdk.http.auth.tunneling.disabledSchemes=""" "-XX:+HeapDumpOnOutOfMemoryError" "-XX:-OmitStackTraceInFastThrow" "-Djdk.attach.allowAttachSelf=true" "-Dkotlinx.coroutines.debug=off" "-Djdk.module.illegalAccess.silent=true" "-javaagent:C:\Users\Public.jetbrains\jetbrains-agent-v3.2.0.de72.619"
OpenJDK 64-B
看到 -javaagent 這個參數了嗎。近一步發現這個 -javaagent 是在%ACC%變量里。

// 下一步，查找 %ACC%，發現在idea.bat里，並沒有直接對其設置值，猜想一定是調用了另外的bat文件，對其設置值的，按照這個思路，append.bat，進入了視線。在約在idea.bat里，114行，加上輸出

  echo aaaaaaa\%VM_OPTIONS_FILE%
 
  FOR /F "eol=# usebackq delims=" %%i IN ("%VM_OPTIONS_FILE%") DO CALL "%IDE_BIN_DIR%\append.bat" "%%i"
  IF NOT "%USER_VM_OPTIONS_FILE%" == "" (
    FOR /F "eol=# usebackq delims=" %%i IN ("%USER_VM_OPTIONS_FILE%") DO CALL "%IDE_BIN_DIR%\append.bat" "%%i"
  )
)

// 發現有使用到 (具體的解決方案)

C:\Users\cpp\AppData\Roaming\JetBrains\IntelliJIdea2021.2\idea64.exe.vmoptions 這個文件，記事本直接輸入該文件，還真有這個文件。內容如下所示：

-Xms128m
-Xmx1012m
-XX:ReservedCodeCacheSize=240m
-XX:+UseConcMarkSweepGC
-XX:SoftRefLRUPolicyMSPerMB=50
-ea
-XX:CICompilerCount=2
-Dsun.io.useCanonPrefixCache=false
-Djdk.http.auth.tunneling.disabledSchemes=""
-XX:+HeapDumpOnOutOfMemoryError
-XX:-OmitStackTraceInFastThrow
-Djdk.attach.allowAttachSelf=true
-Dkotlinx.coroutines.debug=off
-Djdk.module.illegalAccess.silent=true
-javaagent:C:\Users\Public\.jetbrains\jetbrains-agent-v3.2.0.de72.619

// 好了，看到 -javaagent:C:\Users\Public\.jetbrains\jetbrains-agent-v3.2.0.de72.619  這一行，是不是定義到問題了，趕緊刪除這一行，再次輸入 idea，久違的啟動畫面出現了。

// 最后，終結一下，不是ieda做的不好。而是目前在用的2020.1，破解了（為什么破解你的懂的）。然后安裝新版后，由於IEDA太智能了，智能的太過頭了，把現有的啟運參數也都復制過去了。又因為最新的IEDA，不兼容破解程序 C:\Users\Public\.jetbrains\jetbrains-agent-v3.2.0.de72.619了，所以報錯了，所以JVM結束了，所有沒有啟動畫面了，所以就涼涼了。

另外，有嘗試過，報錯不是提向了 :C:\Users\Public.jetbrains\jetbrains-agent-v3.2.0.de72.619這個文件嗎，那么我刪除這個文件會怎樣呢？事實證明，如下所示：

OpenJDK 64-Bit Server VM warning: Option UseConcMarkSweepGC was deprecated in version 9.0 and will likely be removed in a future release.
Error opening zip file or JAR manifest missing : C:\Users\Public.jetbrains\jetbrains-agent-v3.2.0.de72.619
Error occurred during initialization of VM
agent library failed to init: instrument
DEBUG流程：idea.bat -> append.bat --> C:\Users\cpp\AppData\Roaming\JetBrains\IntelliJIdea2021.2\idea64.exe.vmoptions

最后，寫上遇到的錯誤

OpenJDK 64-Bit Server VM warning: Option UseConcMarkSweepGC was deprecated in version 9.0 and will likely be removed in a future release.

====================================================
======= Jetbrains License Crack =======
======= https://zhile.io =======

@See: https://zhile.io/2018/08/17/jetbrains-license-server-crack.html

@Version: 3.2.0, @Build Date: 2020-04-10

Exception in thread "main" java.lang.reflect.InvocationTargetException
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at java.instrument/sun.instrument.InstrumentationImpl.loadClassAndStartAgent(InstrumentationImpl.java:513)
at java.instrument/sun.instrument.InstrumentationImpl.loadClassAndCallPremain(InstrumentationImpl.java:525)
Caused by: java.lang.RuntimeException: java.lang.NullPointerException
at fuck_the_regulations_v320.en.b(en.java)
at fuck_the_regulations_v320.dH.premain(dH.java)
... 6 more
Caused by: java.lang.NullPointerException
... 8 more
*** java.lang.instrument ASSERTION FAILED ***: "result" with message agent load/premain call failed at ./src/java.instrument/share/native/libinstrument/JPLISAgent.c line: 422
FATAL ERROR in native method: processing of -javaagent failed, processJavaStart failed