smali code:

.class public Lhello;
.super Ljava/lang/Object;

.method public static main()V
.registers 2

    invoke-static {}, Ljava/lang/Runtime;->getRuntime()Ljava/lang/Runtime;

    move-result-object v0

    const-string v1, "echo hello"

    invoke-virtual {v0, v1}, Ljava/lang/Runtime;->exec(Ljava/lang/String;)Ljava/lang/Process;

.end method

logcat:

D/dalvikvm( 8473): DexOpt: --- BEGIN 'hello.zip' (bootstrap=0) ---
D/dalvikvm( 8477): creating instr width table
D/dalvikvm( 8477): DexOpt: load 0ms, verify 0ms, opt 0ms
D/dalvikvm( 8473): DexOpt: --- END 'hello.zip' (success) ---
D/dalvikvm( 8473): DEX prep '/data/local/hello.zip': unzip in 0ms, rewrite 25ms
W/dalvikvm( 8473): VFY: execution can walk off end of code area (from 0x6)
W/dalvikvm( 8473): VFY:  rejected Lhello;.main ()V
W/dalvikvm( 8473): Verifier rejected class Lhello;
W/dalvikvm( 8473): threadid=1: thread exiting with uncaught exception (group=0x4
001d660)