A DESCRIPTION OF THE REQUEST :
In lack of multiple return values, we often see:

int divide(int[] mod, int a, int b) {
    int result = a / b;
    mod[0] = a % b;
    return result;
}

int[] mod = new int[1];
int quotient = devide(mod, 103, 25);
int remainder = mod[0];


JUSTIFICATION :
Indirection via array wastes performance.

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Hotspot compiler should refactor those helper arrays into normal fields after inlining.

CUSTOMER SUBMITTED WORKAROUND :
Do not use methods, if multiple values are expected, or expensively instantiate multiple value objects as return value and unbox them later.
Escape Analysis does this optimization. I am closing this bug if there is no objection.

% cat Test.java
public class Test {
    static int divide(int[] mod, int a, int b) {
        int result = a / b;
        mod[0] = a % b;
        return result;
    }

    static int test() {
        int[] mod = new int[1];
        int quotient = divide(mod, 103, 25);
        int remainder = mod[0];
        return quotient + remainder;
    }

    public static void main(String[] args) {
        for (int i = 0; i < 100000; i++) {
            int r = test();
        }
    }
}

% java -XX:+PrintCompilation -XX:+PrintInlining -XX:CompileCommand=print,Test::test -XX:+DoEscapeAnalysis Test
VM option '+PrintCompilation'
VM option '+PrintInlining'
VM option 'CompileCommand=print,Test::test'
VM option '+DoEscapeAnalysis'
CompilerOracle: print Test.test
  1       Test::test (21 bytes)
      @ 9   Test::divide  inline (hot)
  2       Test::divide (12 bytes)
  1%      Test::main @ 2 (19 bytes)
{method} 
 - klass: {other class}
 - method holder:     'Test'
 - constants:         0xfe7dd59b{constant pool}
 - access:            0x81000008  static 
 - name:              'test'
 - signature:         '()I'
 - max stack:         3
 - max locals:        3
 - size of params:    0
 - method size:       20
 - vtable index:      -2
 - i2i entry:         0xf940b220
 - adapter:           0x0812db08
 - compiled entry     0xf94aaa01
 - code size:         21
 - code start:        0xb51e6850
 - code end (excl):   0xb51e6865
 - method data:       0xb51e6e48
 - checked ex length: 0
 - linenumber start:  0xb51e6865
 - localvar length:   0
#
#  int (  )
#
# -- Old esp -- Framesize: 16 --
#r045 esp+12: return address
#r044 esp+ 8: pad2, in_preserve
#r043 esp+ 4: pad2, in_preserve
#r042 esp+ 0: Fixed slot 0
#
abababab   N1: #	B1 <- B1  Freq: 1
abababab
000   B1: #	N1 <- BLOCK HEAD IS JUNK   Freq: 1
000   	PUSHL  EBP
	SUB    ESP,8	# Create frame
007   	MOV    EAX,#7
00c   	ADD    ESP,8	# Destroy frame
	POPL   EBP
	TEST   PollPage,EAX	! Poll Safepoint
	
016   	RET
016