Just because something existed before something else doesn't mean a competitor can't spring up and have more momentum. It feels like the JVM is massively falling behind and it loses out massively on things like memory efficiency.
"NestedVM provides binary translation for Java Bytecode. This is done by having GCC compile to a MIPS binary which is then translated to a Java class file. Hence any application written in C, C++, Fortran, or any other language supported by GCC can be run in 100% pure Java with no source changes."
VOC transpiles Python to Java bytecode. Py2many transpiles Python to many languages but not yet Java.
Apache Arrow can do IPC to share memory references to structs with schema without modification between many languages now; including JS and WASM. https://arrow.apache.org/
Browsers could run WASM containers, too. How does the browser sandbox+ WASM runtime sandbox (that lacks WASI) compare to the security features of Linux containers?
Just because something existed before something else doesn't mean a competitor can't spring up and have more momentum. It feels like the JVM is massively falling behind and it loses out massively on things like memory efficiency.