loadLibrary() — netty Function Reference

Architecture documentation for the loadLibrary() function in NativeLibraryLoader.java from the netty codebase.

Function java CommonUtil Internal calls 2 called by 1

Entity Profile

CommonUtil→ Internal→ loadLibrary() — netty Function Reference

Dependency Diagram

graph TD
  bafe3f15_b0bf_647a_3a35_cd885f9d3174["loadLibrary()"]
  e940cc67_3be6_5ff3_e560_4d68972dc13b["NativeLibraryLoader"]
  bafe3f15_b0bf_647a_3a35_cd885f9d3174 -->|defined in| e940cc67_3be6_5ff3_e560_4d68972dc13b
  d92afe83_049b_d0b5_f35c_dd5834c38908["load()"]
  d92afe83_049b_d0b5_f35c_dd5834c38908 -->|calls| bafe3f15_b0bf_647a_3a35_cd885f9d3174
  ad07e32d_733a_fab6_069d_362602f3f820["tryToLoadClass()"]
  bafe3f15_b0bf_647a_3a35_cd885f9d3174 -->|calls| ad07e32d_733a_fab6_069d_362602f3f820
  4596d050_35b6_8fd1_9844_425af82366ca["loadLibraryByHelper()"]
  bafe3f15_b0bf_647a_3a35_cd885f9d3174 -->|calls| 4596d050_35b6_8fd1_9844_425af82366ca
  style bafe3f15_b0bf_647a_3a35_cd885f9d3174 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

common/src/main/java/io/netty/util/internal/NativeLibraryLoader.java lines 381–409

    private static void loadLibrary(final ClassLoader loader, final String name, final boolean absolute) {
        Throwable suppressed = null;
        try {
            try {
                // Make sure the helper belongs to the target ClassLoader.
                final Class<?> newHelper = tryToLoadClass(loader, NativeLibraryUtil.class);
                loadLibraryByHelper(newHelper, name, absolute);
                logger.debug("Successfully loaded the library {}", name);
                return;
            } catch (UnsatisfiedLinkError e) { // Should by pass the UnsatisfiedLinkError here!
                suppressed = e;
            } catch (Exception e) {
                suppressed = e;
            }
            NativeLibraryUtil.loadLibrary(name, absolute);  // Fallback to local helper class.
            logger.debug("Successfully loaded the library {}", name);
        } catch (NoSuchMethodError nsme) {
            if (suppressed != null) {
                ThrowableUtil.addSuppressed(nsme, suppressed);
            }
            throw new LinkageError(
                    "Possible multiple incompatible native libraries on the classpath for '" + name + "'?", nsme);
        } catch (UnsatisfiedLinkError ule) {
            if (suppressed != null) {
                ThrowableUtil.addSuppressed(ule, suppressed);
            }
            throw ule;
        }
    }