Suddenly found a problem, a 64 - bit system can run a 32-bit program, but why the DLL must correspond to each other? Is the cause of the Jvm or the cause of the Windows?

CodePudding user response:

Java through JNI calls a DLL is the requirement for the JVM and DLL digit compatible
Not compatible with the following situation:
1, if is a 32-bit system, then certainly install a 64 - bit JVM, can't call 64 DLLS,
2, if it is a 64 - bit systems, a 64 - bit JVM, 32-bit DLL, which is not compatible
3, if it is a 64 - bit system, a 32-bit JVM, a 64 - bit DLL, this I remember if the DLL is compatible with 32 bit patterns generated, or seems to be compatible

CodePudding user response:

reference 1st floor sunyiz response:

Java through JNI calls the DLL, the JVM is needed and DLL digit compatible
Not compatible with the following situation:
1, if is a 32-bit system, then certainly install a 64 - bit JVM, can't call 64 DLLS,
2, if it is a 64 - bit systems, a 64 - bit JVM, 32-bit DLL, which is not compatible
3, if it is a 64 - bit system, a 32-bit JVM, a 64 - bit DLL, this I remember if the DLL is compatible with 32 bit patterns generated, or seems to be compatible

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