[ https://issues.apache.org/jira/browse/HARMONY-3216?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Alexey Varlamov reassigned HARMONY-3216:
----------------------------------------
Assignee: Alexey Varlamov
> [drlvm][jit][opt] OPT loses ArrayStoreException when optimizing java.lang.System.arraycopy(Object
src, int srcPos, Object dest, int destPos, int length)
> --------------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: HARMONY-3216
> URL: https://issues.apache.org/jira/browse/HARMONY-3216
> Project: Harmony
> Issue Type: Bug
> Components: DRLVM
> Environment: Linux x86 (SLES9), Windows x86 (XP )
> Reporter: Nina Rinskaya
> Assigned To: Alexey Varlamov
> Priority: Minor
> Attachments: HARMONY-3216.patch
>
>
> Looks that OPT loses ArrayStoreException when optimizing java.lang.System.arraycopy(Object
src, int srcPos, Object dest, int destPos, int length), please see testcase and outputs below:
> public class MyTest {
> Object[] oo1 = new String[3];
> public int test() {
> Integer[] oo2 = new Integer[oo1.length];
> for (int i=0; i<oo2.length; i++) {
> oo2[i] = new Integer(i);
> }
> try {
> System.arraycopy(oo2, 0, oo1, 0, oo1.length);
> } catch (ArrayStoreException ase) {
> return 0;
> }
> return 1;
> }
> public static void main(String[] args) {
> try {
> int res = new MyTest().test();
> if (res != 0 ) {
> System.out.println("Failed: ArrayStoreException not thrown!");
> } else
> System.out.println("Passed");
> } catch (Throwable t) {
> System.out.println("Error: ");
> t.printStackTrace();
> }
> }
> }
> Output on RI:
> java version "1.5.0_06"
> Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_06-b05)
> Java HotSpot(TM) Server VM (build 1.5.0_06-b05, mixed mode)
> java.lang.ArrayStoreException
> at java.lang.System.arraycopy(Native Method)
> at ac.test(ac.java:9)
> at ac.main(ac.java:18)
> Passed: ArrayStoreException thrown
> Output on Harmony (with default options):
> java version "1.5.0"
> pre-alpha : not complete or compatible
> svn = r509548, (Feb 20 2007), Linux/ia32/gcc 3.3.3, debug build
> http://incubator.apache.org/harmony
> java.lang.ArrayStoreException: bad arrayCopy
> at java.lang.VMMemoryManager.arrayCopy(VMMemoryManager.java)
> at java.lang.System.arraycopy(System.java)
> at ac.test(ac.java:9)
> at ac.main(ac.java:18)
> Passed: ArrayStoreException thrown
> Output on Harmony with -Xem:opt:
> Apache Harmony Launcher : (c) Copyright 1991, 2006 The Apache Software Foundation or
its licensors, as applicable.
> java version "1.5.0"
> pre-alpha : not complete or compatible
> svn = r509548, (Feb 20 2007), Linux/ia32/gcc 3.3.3, debug build
> http://incubator.apache.org/harmony
> Failed: ArrayStoreException not thrown!
> Output on Harmony with -Xem:opt -XDjit.arg.genArrayCopyRepMove=false:
> java version "1.5.0"
> pre-alpha : not complete or compatible
> svn = r509548, (Feb 20 2007), Linux/ia32/gcc 3.3.3, debug build
> http://incubator.apache.org/harmony
> java.lang.ArrayStoreException: bad arrayCopy
> at java.lang.VMMemoryManager.arrayCopy(VMMemoryManager.java)
> at java.lang.System.arraycopy(System.java)
> at ac.test(ac.java:9)
> at ac.main(ac.java:18)
> Passed: ArrayStoreException thrown
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