OkHttp网络请求，创建OkHttpClient对象时报错

[黎知遇]

04/09 18:50:56: Launching app
$ adb shell am start -n "com.example.myapplication/com.example.myapplication.MainActivity" -a android.intent.action.MAIN -c android.intent.category.LAUNCHER
Client not ready yet..Waiting for process to come online
Connected to process 11864 on device emulator-5554
Capturing and displaying logcat messages from application. This behavior can be disabled in the "Logcat output" section of the "Debugger" settings page.
I/e.myapplicatio: Not late-enabling -Xcheck:jni (already on)
W/e.myapplicatio: Unexpected CPU variant for X86 using defaults: x86_64
W/e.myapplicatio: JIT profile information will not be recorded: profile file does not exits.
I/chatty: uid=10101(com.example.myapplication) identical 10 lines
W/e.myapplicatio: JIT profile information will not be recorded: profile file does not exits.
I/InstantRun: starting instant run server: is main process
W/e.myapplicatio: Accessing hidden method Landroid/view/View;->computeFitSystemWindows(Landroid/graphics/Rect;Landroid/graphics/Rect;)Z (light greylist, reflection)
W/e.myapplicatio: Accessing hidden method Landroid/view/ViewGroup;->makeOptionalFitsSystemWindows()V (light greylist, reflection)
D/AndroidRuntime: Shutting down VM
E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.myapplication, PID: 11864
java.lang.BootstrapMethodError: Exception from call site #4 bootstrap method
at okhttp3.internal.Util.<clinit>(Util.java:87)
at okhttp3.internal.Util.immutableList(Util.java:234)
at okhttp3.OkHttpClient.<clinit>(OkHttpClient.java:124)
at com.example.myapplication.MainActivity.onCreate(MainActivity.java:14)
at android.app.Activity.performCreate(Activity.java:7136)
at android.app.Activity.performCreate(Activity.java:7127)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1271)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2893)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3048)
at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78)
at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108)
at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1808)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:193)
at android.app.ActivityThread.main(ActivityThread.java:6669)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858)
Caused by: java.lang.ClassCastException: Bootstrap method returned null
at okhttp3.internal.Util.<clinit>(Util.java:87) 
at okhttp3.internal.Util.immutableList(Util.java:234) 
at okhttp3.OkHttpClient.<clinit>(OkHttpClient.java:124) 
at com.example.myapplication.MainActivity.onCreate(MainActivity.java:14) 
at android.app.Activity.performCreate(Activity.java:7136) 
at android.app.Activity.performCreate(Activity.java:7127) 
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1271) 
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2893) 
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3048) 
at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78) 
at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108) 
at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1808) 
at android.os.Handler.dispatchMessage(Handler.java:106) 
at android.os.Looper.loop(Looper.java:193) 
at android.app.ActivityThread.main(ActivityThread.java:6669) 
at java.lang.reflect.Method.invoke(Native Method) 
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858) 
I/Process: Sending signal. PID: 11864 SIG: 9
Application terminated.

[jzp12]

你本地java版本是多少？

[jzp12]

在你的modele build.gradle 文件中添加以下代码： android { ... // Configure only for each module that uses Java 8 // language features (either in its source code or // through dependencies). compileOptions { sourceCompatibility JavaVersion.VERSION_1_8 targetCompatibility JavaVersion.VERSION_1_8 } }

[黎知遇]

你的方法解决了我的问题，谢谢

[黎知遇]

---昨天按教程练习okhttp老是各种报错，最后我发现把其它代码注释了只留创建OkHttpClient对象这一句，编译能通过就是运行不了，模拟器打开app就崩溃，删了这一句就能正常运行，所以我初步认为就是这一句有问题，错误提示是java.lang.BootstrapMethodError: Exception from call site #4 bootstrap method“来自站点的异常”，然后我用了2楼的方法解决了问题 ---今天重新撸了一遍代码，又觉得问题不在这，我今天写的代码里没添加编译选项JavaVersion.VERSION_1_8，却又正常运行了 ---奇怪的是这是和昨天一样的代码，直接copy过来的就换个工程目录。