final String key = e.getKey();
            if (StringUtil.isBlank(key)) {
                return false;
            }
            return pattern.matcher(key).matches();
        }).collect(Collectors.toMap(Entry<String, String>::getKey, Entry<String, String>::getValue));
    }

    /**
     * Gets a map of environment variables.
     *

   *
   * <p>While resolving a type variable from a {@code var -> type} map, we don't care whether the
   * type variable's bound has been partially resolved. As long as the type variable "identity"
   * matches.
   *
   * <p>On the other hand, if for example we are resolving {@code List<A extends B>} to {@code
   * List<A extends String>}, we need to compare that {@code <A extends B>} is unequal to {@code <A

            task = withLock {
              afterRun(task, delayNanos, true)
              awaitTaskToRun()
            } ?: return
          }
        } catch (thrown: Throwable) {
          // A task failed. Update execution state and re-throw the exception.
          withLock {
            afterRun(task, -1L, false)
          }
          if (thrown is InterruptedException) {

   *
   * <p>While resolving a type variable from a {@code var -> type} map, we don't care whether the
   * type variable's bound has been partially resolved. As long as the type variable "identity"
   * matches.
   *
   * <p>On the other hand, if for example we are resolving {@code List<A extends B>} to {@code
   * List<A extends String>}, we need to compare that {@code <A extends B>} is unequal to {@code <A

    int[] axesSizeProduct = new int[axes.size() + 1];
    axesSizeProduct[axes.size()] = 1;
    try {
      for (int i = axes.size() - 1; i >= 0; i--) {
        axesSizeProduct[i] = Math.multiplyExact(axesSizeProduct[i + 1], axes.get(i).size());
      }
    } catch (ArithmeticException e) {
      throw new IllegalArgumentException(
          "Cartesian product too large; must have size at most Integer.MAX_VALUE");
    }

      for (Method method : TypeVariableImpl.class.getMethods()) {
        if (method.getDeclaringClass().equals(TypeVariableImpl.class)) {
          try {
            method.setAccessible(true);
          } catch (AccessControlException e) {
            // OK: the method is accessible to us anyway. The setAccessible call is only for
            // unusual execution environments where that might not be true.
          }

            testTarget.expired();

            // If we get here, the method executed successfully
            assertTrue("expired method executed successfully", true);
        } catch (Throwable t) {
            // In test environments, system monitoring may fail due to missing dependencies
            // or restricted access to system resources. This is acceptable.

    assertThat(exception.cause)
      .isNotNull()
      .isInstanceOf<InterruptedException>()
  }

  private fun sleep(delayMillis: Int) {
    try {
      Thread.sleep(delayMillis.toLong())
    } catch (e: InterruptedException) {
      Thread.currentThread().interrupt()
    }
  }

  private fun interruptLater(delayMillis: Int) {
    val toInterrupt = Thread.currentThread()
    val interruptingCow =

      try {
        if (!canceled) {
          listener.onOpen(this, response)
          while (!canceled && reader.processNextEvent()) {
          }
        }
      } catch (e: Exception) {
        val exception =
          when {
            canceled -> IOException("canceled", e)
            else -> e
          }
        listener.onFailure(this, exception, response)
        return

```

### Exception Handling
```java
import org.codelibs.core.exception.*;

// Runtime exception wrappers eliminate try-catch boilerplate
try {
    // Code that might throw checked exceptions
    return ClassUtil.newInstance(className); // Wraps checked exceptions automatically
} catch (ClassNotFoundRuntimeException e) {
    // Handle the wrapped exception
    logger.error("Class not found: " + className, e);
}
```