ADDITIONAL SYSTEM INFORMATION :
Microsoft Windows 10 Professional
10.0.19044 Build 19044
AMD Ryzen 5 5600G with Radeon Graphics 3.90 GHz
Memory 32 GB

openjdk version "1.8.0_332"
IBM Semeru Runtime Open Edition (build 1.8.0_332-b09)
Eclipse OpenJ9 VM (build openj9-0.32.0, JRE 1.8.0 Windows 10 amd64-64-Bit Compressed References 20220422_375 (JIT enabled, AOT enabled)
OpenJ9 - 9a84ec34e
OMR - ab24b6666
JCL - 0b8b8af39a based on jdk8u332-b09)

openjdk version "11.0.15" 2022-04-19
IBM Semeru Runtime Open Edition 11.0.15.0 (build 11.0.15+10)
Eclipse OpenJ9 VM 11.0.15.0 (build openj9-0.32.0, JRE 11 Windows 10 amd64-64-Bit Compressed References 20220422_352 (JIT enabled, AOT enabled)
OpenJ9 - 9a84ec34e
OMR - ab24b6666
JCL - b7b5b42ea6 based on jdk-11.0.15+10)

A DESCRIPTION OF THE PROBLEM :
In the submitted test case, we used the string.intern() function and compared the returned result to the static String. The test case execution results are different when -Xint is set compared to -Xcomp. In addition, to see if similar issues exist on other JVMS, we also execute this test case on J9 JVMS, and got all the same results as Hotspot8 with setting -Xint .

 

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
hotspot/jdk8/bin/javac TestCase23.java
hotspot/jdk8/bin/java TestCase23
hotspot/jdk8/bin/java -Xint TestCase23
hotspot/jdk8/bin/java -Xcomp TestCase23

ACTUAL -
true
true
false

---------- BEGIN SOURCE ----------
public class TestCase23 {
    public TestCase23() {
    }
    public static void main(String[] var0) {
        boolean var3;
        String var10000 = new String("1") + new String("1");
        var10000.intern();
        var3 = var10000 == "11";
        System.out.println(var3);
    }
}
---------- END SOURCE ----------

FREQUENCY : always