8000 java.lang.NoClassDefFoundError on Spark local mode using --conf spark.jars by XorSum · Pull Request #1047 · kwai/blaze · GitHub
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java.lang.NoClassDefFoundError on Spark local mode using --conf spark.jars #1047

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java.lang.NoClassDefFoundError on Spark local mode using --conf spark.jars #1047

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@XorSum XorSum commented Jul 1, 2025

Which issue does this PR close?

Closes #1046

Rationale for this change

In Spark local mode, the jar packages submitted via --conf spark.jars are loaded by Spark's childfirst class loader rather than the system class loader.

What changes are included in this PR?

use contextClassLoader instead of systemClassLoader

Are there any user-facing changes?

No

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@richox richox richox approved these changes

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java.lang.NoClassDefFoundError on Spark local mode using --conf spark.jars
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