JDK9 b115 + Win. 7

To reproduce please run test/java/beans/Performance/Test4058433.java several times:

$ $JDK/bin/java Test4058433 | tee log1.txt
...
$ $JDK/bin/java Test4058433 | tee log5.txt

then try to compare logs:

$ diff log1.txt log2.txt
82219,82220c82219,82220
< property type: java.util.Vector
< write method: public void javax.swing.JList.setListData(java.util.Vector)
---
> property type: [Ljava.lang.Object;
> write method: public void javax.swing.JList.setListData(java.lang.Object[])

...

$ diff log1.txt log5.txt
198923,198924c198923,198924
< property type: java.util.Vector
< write method: public void javax.swing.table.DefaultTableModel.setColumnIdentifiers(java.util.Vector)
---
> property type: [Ljava.lang.Object;
> write method: public void javax.swing.table.DefaultTableModel.setColumnIdentifiers(java.lang.Object[])

etc.

So it seems that the getWriteMethod() (ln 145 of the test) chooses the setter randomly. Only one setter per log is chosen as a "write method":
$ cat log1.txt | grep "write method: public void javax.swing.JList.setListData"
write method: public void javax.swing.JList.setListData(java.util.Vector)