Java Glossary : compatibility

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compatibility

In theory Java is a write once, run everywhere. However, it does not always work both because of bugs in the various platforms and because of deliberate incompatibilities. Here is a table of known major problem areas on the various current platforms:

platform	problems
JavaSoft JDK 1.1.5	ok
JavaSoft JDK 1.1.6	load problems with the JIT in Win95/NT. Problems with reading serialised files.
JavaSoft JDK 1.2	ok
JavaSoft JDK 1.3	2001 Calendar bug.
Jbuilder 2.0	ok
Microsoft Internet Explorer 6.0.2800	Not only does IE leave out the RMI classes, its security manager prevents you from using Sun's. It complains that you are trying to access "localhost" which it considers to be a different host from the nameless one it loaded the Applets from. Problems loading jar files. Microsoft wants you to use proprietary cab files instead.
Microsoft Internet Explorer 6.026 with the Java Plug-in	ok
Netscape Communicator 4.05	ok. In earlier versions the JIT fails. You can turn it off by deleting the jit3240.dll file.
Netscape Communicator 4.05 with the Java Plug-in	ok
Netscape Communicator 4.79	ok.
Netscape Communicator 6.2 uses Java 1.3.1 plug/in automatically.	ok.
Supercede 2.01	Needs registry entries like this HKEY_LOCAL_MACHINE\SOFTWARE\JavaSoft\Java Runtime Environment\1.1\JavaHome "C:\program files\Supercede\Jre" HKEY_LOCAL_MACHINE\SOFTWARE\JavaSoft\Java Runtime Environment\1.1\MicroVersion "4" HKEY_LOCAL_MACHINE\SOFTWARE\JavaSoft\Java Runtime Environment\1.1\RuntimeLib "C:\WINNT\System32\sc30rtl.dll"
Symantec 2.5 Visual Cafe JIT activated	ignores standard CLASSPATH, uses SC.INI.
Symantec 2.5 Visual Cafe JIT disabled SET JAVA_COMPCMD=DIS	ignores standard CLASSPATH, uses SC.INI.

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