java:javap
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java:javap [2023/04/12 15:05] – [Example of usage] odefta | java:javap [2023/07/04 19:36] (current) – external edit 127.0.0.1 | ||
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</ | </ | ||
- | + | <note tip>We want to check if all the generic types are erased after the compilation.</ | |
- | We want to check if all the generic types are erased after the compilation.\\ | + | |
<note important> | <note important> | ||
It is located in the JAVA_HOME\bin folder. | It is located in the JAVA_HOME\bin folder. | ||
Line 55: | Line 54: | ||
C: | C: | ||
</ | </ | ||
+ | |||
+ | <note tip>-c parameter is used to display the disassembled code.</ | ||
Result: | Result: | ||
Line 87: | Line 88: | ||
22: return | 22: return | ||
</ | </ | ||
+ | |||
+ | As we can see in the parameter list of doStuff1 and doStuff2 methods, the generic types survived after compilation.\\ | ||
+ | Some consistency checking information still remains in the binary.\\ | ||
+ | But in the main method, the array list passed to the doStuff2 method does not contain any generic type after compilation. | ||
+ | |||
+ | ===== Use javap in Intellij IDEA ===== | ||
+ | |||
+ | Install the plugin "Class Decompile." | ||
+ | |||
+ | {{: | ||
+ | |||
+ | {{: | ||
+ | |||
+ | Next, right click on your class and select "Show Decompile Code" option. | ||
+ | Result: | ||
+ | |||
+ | {{: | ||
+ | |||
+ | |||
java/javap.1681301146.txt.gz · Last modified: 2023/07/04 19:36 (external edit)