“Code too large” compilation error in Java

Question

Is there any maximum size for code in Java? I wrote a function with more than 10,000 lines. Actually, each line assigns a value to an array variable.

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Answer 1

According to the Java Virtual Machine specification, the code of a method must not be bigger than 65536 bytes:

The value of the code_length item gives the number of bytes in the code array for this method.

The value of code_length must be greater than zero (as the code array must not be empty) and less than 65536.

code_length defines the size of the code[] attribute which contains the actual bytecode of a method:

The code array gives the actual bytes of Java Virtual Machine code that implement the method.