These are Java-based applications. They run on a Java Virtual Machine (JVM). They are platform-independent, meaning a .JAR file could theoretically run on any phone that had a Java Midlet runner installed.
Most .VXP devices use 240x320 or 128x160 resolutions. Ensure your .JAR file matches this, or it will be cut off. Convert .jar To .vxp
However, there are two primary workarounds to get Java content onto a VXP-supported device: 1. The VXP Java Emulator (The Most Successful Method) These are Java-based applications
Look for files named Jre.vxp or Java8.vxp on legacy mobile forums or archives like GitHub and Internet Archive. Convert .jar To .vxp
Before diving into the "how-to," it is important to understand why these files aren't naturally compatible: