J2ME "Byte code exceeds 32K"

Why i get this error while compiling the Java file in J2ME. Is it because extensive use of array Objects since i have a lots of array Objects defined in the Java file 开发者_运维技巧?

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It might be an array initializer within a method, as in:

void someMethod() {
    int[] array = {0, 1, 2, 3};
}

This is equivalent to:

int[] array = new int[4];
array[0] = 0;
array[1] = 1;
array[2] = 2;
array[3] = 3;

and each element assignment takes four VM instructions (between 4 and 12 bytes of code per element.)

If the initializer is too long, it will exceed the 32K limit on the length of a method.

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There is restriction with 32KB with method code, note that not with class file size.

Simple code

public void foo() {
    int arr[] = {1, 2, 3};
}

will turn into [used javap to obtain this result]

public void foo();
  Code:
   0:   iconst_3
   1:   newarray int
   3:   dup
   4:   iconst_0
   5:   iconst_1
   6:   iastore
   7:   dup
   8:   iconst_1
   9:   iconst_2
   10:  iastore
   11:  dup
   12:  iconst_2
   13:  iconst_3
   14:  iastore
   15:  astore_1
   16:  return

So you can imagine your huge & ocmplex array would turn into what size.

I suggest that you move your data into external resources in .jar file, it will also compress much better. also try optimizing it