java.lang.BootstrapMethodError: Exception from call site bootstrap method
Exception – BootstrapMethodError: while parsing CSV using OpenCSV in Android App
<code> java.lang.BootstrapMethodError: Exception from call site #30 bootstrap method at org.apache.commons.lang3.Validate.notNull(Validate.java:225) at org.apache.commons.lang3.reflect.FieldUtils.getAllFieldsList(FieldUtils.java:217) at org.apache.commons.lang3.reflect.FieldUtils.getAllFields(FieldUtils.java:202) at com.opencsv.bean.util.OpencsvUtils.determineMappingStrategy(OpencsvUtils.java:66) at com.opencsv.bean.CsvToBeanBuilder.build(CsvToBeanBuilder.java:210) at com.example.rkmmedialibrary.MainActivity.importCsv(MainActivity.java:95) at com.example.rkmmedialibrary.MainActivity.onActivityResult(MainActivity.java:80) at android.app.Activity.dispatchActivityResult(Activity.java:7454) at android.app.ActivityThread.deliverResults(ActivityThread.java:4353) at android.app.ActivityThread.handleSendResult(ActivityThread.java:4402) at android.app.servertransaction.ActivityResultItem.execute(ActivityResultItem.java:49) 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 </code>
Solution: for BootstrapMethodError
The issue is probably due to Java Version Mismatch, Kindly add below code in your build.gradle file
<code> compileOptions { sourceCompatibility JavaVersion.VERSION_1_8 targetCompatibility JavaVersion.VERSION_1_8 } </code>
Reference: SO Post