A brief analysis of solutions for opening eclipse to an Incompatible JVM

With the oracle10g client installed, eclipse won't open. So I checked and found the following reasons.
The following error occurred while running eclipse:
Incompatible JVMS
Version 1.3.1_01 of the JVM is not suitable for this product.Version:1.4.1 or greater is required.
or
Version 1.4.1_02 of the JVM is not suitable for this product.version :1.5 or greater is required.

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First, the JAVA JDK version on the system is too low, to install the higher version of the JDK.
Second, this is most likely installed with oracle, because oracle USES 1.3 JVMS and eclipse requires 1.4 or 1.5 JVMS.
Solutions: This is done by placing the JDK path in the environment variable in front of the Oracle JDK