Java Runtime Environment 1.5.0 __exclusive__ Page
Many applications built between 2004 and 2008 depend specifically on JRE 1.5.0 or 1.6.0.
Released in September 2004 (officially J2SE 5.0), this version was arguably the most significant update to the Java platform since its inception in 1995. Sun Microsystems, led by the Java Community Process (JCP), broke with tradition. They skipped "1.4" to "1.5" in name only for branding, but internally, the versioning stayed as 1.5.0 . The JRE (Java Runtime Environment) 1.5.0 was the execution vehicle for this revolution. java runtime environment 1.5.0