fix: never deep clone java.lang.Class objects

[brianheineman]

No description provided.

[github-actions]

Bencher Report

Branch	correct-class-object-cloning
Testbed	Linux

⚠️ WARNING: No Threshold found!

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• Latency (nanoseconds (ns))

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Benchmark	Latency	nanoseconds (ns)
default_class_loader	📈 view plot ⚠️ NO THRESHOLD	7,613,100.00 ns
from_bytes	📈 view plot ⚠️ NO THRESHOLD	32,152.00 ns
hello_world	📈 view plot ⚠️ NO THRESHOLD	197,100,000.00 ns
load_hash_map	📈 view plot ⚠️ NO THRESHOLD	462.07 ns
load_invalid_class	📈 view plot ⚠️ NO THRESHOLD	28,374.00 ns
to_bytes	📈 view plot ⚠️ NO THRESHOLD	17,638.00 ns
to_string	📈 view plot ⚠️ NO THRESHOLD	127,130.00 ns
verify	📈 view plot ⚠️ NO THRESHOLD	818.04 ns
vm_init	📈 view plot ⚠️ NO THRESHOLD	187,100,000.00 ns

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[codecov]

Codecov Report

❌ Patch coverage is 66.66667% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 94.06%. Comparing base (958f94d) to head (79ee813).
⚠️ Report is 4 commits behind head on main.

Files with missing lines	Patch %	Lines
ristretto_classloader/src/reference.rs	66.66%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #529      +/-   ##
==========================================
- Coverage   94.07%   94.06%   -0.01%     
==========================================
  Files         580      580              
  Lines       59241    59232       -9     
==========================================
- Hits        55730    55719      -11     
- Misses       3511     3513       +2     

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