Questions tagged [javap]
javap - The Java Class File Disassembler
javap
125
questions
0
votes
2
answers
108
views
Can java disassembled code run without OS?
I disassembled a java class file to Assembly using javap. Then Can I run the assembly code generated by the javap command without Os? Or is there something like il2cpu.net for java?
- 713k
12
votes
2
answers
14k
views
Constructor Inside Inner Static Class in java?
I Wrote the following Code
public class Reader1 {
private int pageNumber;
private class ReaderName1{
public int getPage(){
return pageNumber;
}
}
static ...
- 1,051
0
votes
2
answers
72
views
Is there a way within a bash script to determine the minimum java version required by a jar file containing class files and jar files?
For a single class - we can work out the version of Java used to compile it:
javap -verbose className
I have a scenario where I need to scale this up to a jar file containing many classes and jar ...
0
votes
0
answers
422
views
javap command not working with %JAVA_HOME% being set
Im deep diving into the JVM architecture and I wanted to inspect the constant pool for one of my java classes which belongs to a Spring Boot project.
I have my compiled java class and I am trying to ...
- 31
1
vote
0
answers
151
views
How to syntax highlight a hex dump of JVM classfile?
I'm studying binary file structure of JVM classfile.
My current toolbox consists of $ xxd <classfile> and $ javap -v <classfile>.
Sample outputs of these two tools are as follows:
$ xxd ...
- 341
4
votes
4
answers
20k
views
JDK installed but no javap?
I have the JDK 10.0.2 installed, have the cmd opened in the folder of the class files of my program and try the command: javap Simulation.class .
I get the error that the command javap is not found. ...
- 57
0
votes
1
answer
83
views
javac reports "package does not exist" even though classpath is set
I have a file Test.java (stripped down for debugging):
import com.github.tkutche1.jgrade.Grade;
I try compiling it with this command line and get an error:
# javac -cp lib/com/github/tkutche1/jgrade/...
- 713k
0
votes
1
answer
699
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Where can I find the source code for javap application? [closed]
javap is the Java Class File Disassembler.
Which, in my system, is an application that belongs to Oracle JDK.
$ javap -version
1.8.0_201
$ which javap
/opt/jdk1.8.0_201/bin/javap
$ head -2 /opt/...
- 185
22
votes
5
answers
24k
views
How do I print the class structures in a jar file using the javap tool?
I want to list the methods of the class files in the jar using the javap tool. How do I do it so that it lists the methods and members of all the class files in the jar. Right now I am able to do it ...
- 675
0
votes
1
answer
46
views
Why does an anonymous inner class have such type when I disassemble the class file using javac?
When I disassembled the code given below, I noticed that the TestClass's anonymous inner class in constant pool is displayed as 'AnonymousTestApp$1', but shouldn't it be 'TestClass$1'?
The code:
...
- 307k
0
votes
1
answer
129
views
How to read a file from nested jar at Linux?
Is there any way to read some files from a jar inside the "outer" jar with javap command?
for example, I want to read the a.class
A.jar
|----/lib/
|---B.jar
| ...
- 261k
-2
votes
5
answers
5k
views
.java file path to class name
What's the most efficient way of getting the class(es) created on a .java file? I have the .java file path and I need to get the class full name.
I can only remember:
Compile it with JavaCompiler
...
3
votes
0
answers
745
views
Open .class file with Java Decompiler - incoherent errors
I am an Ubuntu user, I have a lot of .class files in which ground truth information about a dataset I'm using is stored.
I want to access this information (not modify it) and export it to .csv files ...
- 10.8k
1
vote
0
answers
2k
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Downgrading java version in project (IntelliJ)
I am trying to downgrade the target build version of java, but somehow I can´t change it within IntelliJ, don´t understeand why.
Under File -> Project Structure -> Projects I changed the ...
- 165
52
votes
7
answers
11k
views
What does "p" in "javap" stand for?
What does "p" in "javap" stand for? (The "c" in "javac" stands for compiler)
- 7,271