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Last change
on this file since 36214 was 35457, checked in by davidb, 3 years ago |
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Addition of java-based solution to more cleanly determine Java version and bitness, rather than relying of it's 'version' minus argument and inspecting with 'file' the 'java' program. This commit for Unix OS. A later phase of work will be the updated win32.mak file for Windows. Then a final phase of work will be for the 'search4j' source code to be tied in with the generated jar files
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File size:
613 bytes
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| 1 | class DisplayJavaBitness
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| 2 | {
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| 3 | public static void main(String args[])
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| 4 | {
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| 5 | boolean verbose = false;
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| 6 |
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| 7 | if (args.length == 1) {
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| 8 | String arg0 = args[0];
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| 9 |
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| 10 | if (arg0.equals("-v") || arg0.equals("-verbose") || arg0.equals("--verbose")) {
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| 11 | verbose = true;
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| 12 | }
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| 13 | }
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| 14 |
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| 15 | // Testing bitness of JVM
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| 16 | // https://www.baeldung.com/java-detect-jvm-64-or-32-bit
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| 17 |
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| 18 |
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| 19 | boolean is_64bit = com.sun.jna.Platform.is64Bit();
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| 20 |
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| 21 | String bitness_str = (is_64bit) ? "64" : "32";
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| 22 |
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| 23 | if (verbose) {
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| 24 | System.out.println("Bitness: " + bitness_str + "bit");
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| 25 | }
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| 26 | else {
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| 27 | System.out.println(bitness_str);
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| 28 | }
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| 29 | }
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| 30 | }
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| 31 |
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