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pavsa / hackrf-spectrum-analyzer

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HackRF not found by hackrf-spectrum-analyzer under Win11 ? JVMCFRE199E bad major version 55.0 #63

Open aneitzel opened 2 months ago

aneitzel commented 2 months ago

Hello,

HackRF (with portapack, latest firmware 2023.01.1 installed), running fine under Win11 in SDR++ and other SDR tools. Unfortunately i dont got it managed to run with hackrf-spectrum-analyzer. It will always show "HackRF not connected" ??? I noticed a message during startup, details see below:

Exception in thread "hackrf_sweep" java.lang.UnsupportedClassVersionError: JVMCFRE199E bad major version 55.0 of class=hackrfsweep/HackrfSweepLibrary$hackrf_sweep_lib_start__fft_power_callback_callback, the maximum supported major version is 52.0; offset=6

Any idea whats wrong here?

HackRFinfo output:

hackrf_info version: 2023.01.1 libhackrf version: 2023.01.1 (0.8) Found HackRF Index: 0 Serial number: 0000000000000000f77c60dc261b78c3 Board ID Number: 2 (HackRF One) Firmware Version: n_240430 (API:1.08) Part ID Number: 0xa000cb3c 0x006a4358 Hardware Revision: older than r6 Hardware supported by installed firmware: HackRF One

hackrf_sweep_spectrum_analyzer_windows.cmd

C:\Users\Username\Downloads\HackRF Spectrum Analyzer>java -Djna.platform.library.path=lib\win32-x86-64 -jar lib\hackrf_sweep_spectrum_analyzer.jar Persistent image set to 320x240 HackRFSweep thread stopped. Starting hackrf_sweep... 2400-2500MHz hackrf_sweep params: freq 2400-2500MHz FFTBin 100000Hz samples 8192 lna: 40 vga: 0 antenna_lna: false Exception in thread "hackrf_sweep" java.lang.UnsupportedClassVersionError: JVMCFRE199E bad major version 55.0 of class=hackrfsweep/HackrfSweepLibrary$hackrf_sweep_lib_start__fft_power_callback_callback, the maximum supported major version is 52.0; offset=6 at java.lang.ClassLoader.defineClassImpl(Native Method) at java.lang.ClassLoader.defineClassInternal(ClassLoader.java:397) at java.lang.ClassLoader.defineClass(ClassLoader.java:358) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) at java.net.URLClassLoader.defineClass(URLClassLoader.java:682) at java.net.URLClassLoader.access$400(URLClassLoader.java:89) at java.net.URLClassLoader$ClassFinder.run(URLClassLoader.java:1086) at java.security.AccessController.doPrivileged(AccessController.java:782) at java.net.URLClassLoader.findClass(URLClassLoader.java:589) at java.lang.ClassLoader.loadClassHelper(ClassLoader.java:957) at java.lang.ClassLoader.loadClass(ClassLoader.java:902) at java.lang.ClassLoader.loadClass(ClassLoader.java:885) at jspectrumanalyzer.HackRFSweepSpectrumAnalyzer.sweep(HackRFSweepSpectrumAnalyzer.java:1237) at jspectrumanalyzer.HackRFSweepSpectrumAnalyzer.lambda$6(HackRFSweepSpectrumAnalyzer.java:774) at java.lang.Thread.run(Thread.java:826) Persistent image set to 401x401 Persistent image set to 401x401

dave3825us commented 1 month ago

Anything going on with this program? Wont connect to hackrf win 10

aneitzel commented 1 month ago

Good news! Found the problem!

The error JVMCFRE199E bad major version 55.0 comes up because of a old JAVA runtime engine installed on my system. I uninstalled java and installed following open JAVA IBM Seremu implementation (its free):

_openjdk 21.0.2 2024-01-16 LTS IBM Semeru Runtime Open Edition 21.0.2.0 (build 21.0.2+13-LTS) Eclipse OpenJ9 VM 21.0.2.0 (build openj9-0.43.0, JRE 21 Windows 11 amd64-64-Bit Compressed References 2024011695 (JIT enabled, AOT enabled) OpenJ9 - 2c3d78b48 OMR - ea8124dbc JCL - 78c4500a434 based on jdk-21.0.2+13)

With this setup hackrf spectrum works fine! Hope this helps!

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