bytecode

来源： https://stackoverflow.com/questions/25562123/how-to-modify-a-java-bytecode-using-asm-4-0

来源： https://stackoverflow.com/questions/25562123/how-to-modify-a-java-bytecode-using-asm-4-0

来源： https://stackoverflow.com/questions/25562123/how-to-modify-a-java-bytecode-using-asm-4-0

问题 I'm about to upgrade a tomcat installation from version 6.0 to version 8.5, and also upgrading the JVM from 6 to 8. Our java code is compiled with java 6 as for now. I know that running java code on the latest JVM is always a good idea performance-wise (not to mention security-wise). In this way some code compiled with java 1.6 might run faster on JVM 8 compared to JVM 6. But how about compilation? Does one gain anything by compiling code written in java 6 with a java 8 compiler (i.e. only

问题 I made a (one file) scrip in python for my client, the program is a success and now it needs to be distributed to 12 of my client employees. The script I made uses a lot of libraries (imports), some of then are not popular at all so here goes the question: Is there a way to distribute my program already compiled in bytecode? So the users can run it by just simply doing "python myProgram.pyc" or just "myProgram.pyc" (if it has +x property), I know this is entirely possible in Java by compiling

问题 I made a (one file) scrip in python for my client, the program is a success and now it needs to be distributed to 12 of my client employees. The script I made uses a lot of libraries (imports), some of then are not popular at all so here goes the question: Is there a way to distribute my program already compiled in bytecode? So the users can run it by just simply doing "python myProgram.pyc" or just "myProgram.pyc" (if it has +x property), I know this is entirely possible in Java by compiling

问题 Closed . This question is opinion-based. It is not currently accepting answers. Want to improve this question? Update the question so it can be answered with facts and citations by editing this post. Closed 3 months ago . Improve this question JVM Run-time Data Areas separate stack for each method being executed. It contains operand stack and local variables. Every time you load a variable, you need to const to the operand stack and then store to the local variables. Why not directly operate

问题 I know that the new , dup , invokespecial and astore bytecode pattern will invoke the instance initializer method <init> when someone instance a Java class from the Java language point of view, but i never figure out who invoke the special <clinit> method and when does this happen? My guess is that <clinit> is invoked before <init> method. Can any body give me some information to prove it? Is this documented in the JVM Specification or Java Language Specification? 回答1: JVM spec §2.9. Special

问题 I'm currently implementing some code that should, for each method of a class, run a couple of visitors on a .class file, as to instrument its bytecode. At the moment, I've just implemented a MethodRenamerVisitor, but this is already getting quite awkward: ClassReader classReader = null; try { classReader = new ClassReader(monitoringFile.getCannonicalName()); } catch (IOException e1) { e1.printStackTrace(); } ClassWriter classWriter = null; for (BytecodeMethod bytecodeMethod : bytecodeClass

问题 After creating the project when i run the react-native app, it gives me this error. FAILURE: Build failed with an exception. * What went wrong: A problem occurred configuring project ':app'. > Failed to notify project evaluation listener. > Uninitialized object exists on backward branch 142 Exception Details: Location: com/android/build/gradle/internal/pipeline/VariantInfoImpl.<init>(Lcom/android/build/gradle/internal/scope/VariantScope;)V @200: goto Reason: Error exists in the bytecode