Finding and downloading legacy versions of Java—specifically —is often necessary for maintaining older enterprise software or niche applications. While modern Java versions are readily available, these legacy versions are kept in a specialized archive by Oracle . Where to Download Legacy Java Versions
While still widely used, older updates (8u202 and earlier) are located in the Java SE 8 Archive , while newer updates may require an Oracle account and a different license. java 1.6 jre 1.6.0_38+ java 1.7 java 1.8 download
You can find specific updates like JRE 1.6.0_38 and the final public update, 6u45, on the Java SE 6 Archive page . java 1.6 jre 1.6.0_38+ java 1.7 java 1.8 download