Name: md23716 Date: 10/19/2001

The application is being developed and compiled under Visual Age for Java (VAJ). However, unexpected results are seen when the application is run on the Solaris JDK with the JIT.

Note the following piece of code:

int colTier = 3700;
int colEmp = 1350;
int colRate = 1900;
int colPrem = 2150;
rtfW.startTableRow(0, 0, false);
rtfW.startTableCell(colTier, rtfW.ALIGN_RIGHT, rtfW.DEFAULT, 0, rtfW.DEFAULT);
rtfW.insertText("Tier", 4, 22, 0, true, false, false);
rtfW.endTableCell();
rtfW.startTableCell(colEmp, rtfW.ALIGN_RIGHT, rtfW.DEFAULT, 0, rtfW.DEFAULT);
rtfW.insertText("Employees", 4, 22, 0, true, false, false);
rtfW.endTableCell();
rtfW.startTableCell(colRate, rtfW.ALIGN_RIGHT, rtfW.DEFAULT, 0, rtfW.DEFAULT);
rtfW.insertText("Monthly Rate", 4, 22, 0, true, false, false);
rtfW.endTableCell();
rtfW.startTableCell(colPrem, rtfW.ALIGN_RIGHT, rtfW.DEFAULT, 0, rtfW.DEFAULT);
rtfW.insertText("Monthly Premium", 4, 22, 0, true, false, false);
rtfW.endTableCell();
rtfW.endTableRow();
insertBlankRow();
curLine += 2;

When this is run with the JIT, the last call to "startTableCell" should receive the "colPrem" local variable which was initialized with "2150". However, by the time the program counter reaches the call, this variable only contains "1".

When this is run without the JIT, the application works as expected.

A set of files which include both Sun and VAJ compiled classes is available to demonstrate the problem.

The test behaviour is different when run with Sun compiled classes, compared to VAJ. This suggests that the Sun JVM is having trouble JIT'ing the VAJ optimized bytecode.

This problem does not occur with the 1.1.8 JVM or the VAJ JVM.

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