Program: 91882
Project: 91882
Buggy source:
/** 
 * Searches in given list of source components for an operation capable to convert or transform coordinates to the given target CRS. If no such operation can be found, then this method returns   {@code null}.
 * @param caller       the object which is inferring a coordinate operation.
 * @param sourceIsUsed flags for keeping trace of which source has been used.
 * @param sources      all components of the source CRS.
 * @param target       one component of the target CRS.
 * @return information about a coordinate operation from a source CRS to the given target CRS, or {@code null}.
 * @throws FactoryException if an error occurred while grabbing a coordinate operation.
 */
static SubOperationInfo create(final CoordinateOperationFinder caller,final boolean[] sourceIsUsed,final List<? extends SingleCRS> sources,final SingleCRS target) throws FactoryException {
  OperationNotFoundException failure=null;
  final Class<?> targetType=type(target);
  for (  final Class<?>[] sourceTypes : COMPATIBLE_TYPES) {
    if (sourceTypes[0].isAssignableFrom(targetType)) {
      int startAtDimension;
      int endAtDimension=0;
      for (      final Class<?> sourceType : sourceTypes) {
        for (int i=0; i < sourceIsUsed.length; i++) {
          final SingleCRS source=sources.get(i);
          startAtDimension=endAtDimension;
          endAtDimension+=source.getCoordinateSystem().getDimension();
          if (!sourceIsUsed[i] && sourceType.isAssignableFrom(type(source))) {
            final CoordinateOperation operation;
            try {
              operation=caller.createOperation(source,target);
            }
 catch (            OperationNotFoundException exception) {
              if (failure == null) {
                failure=exception;
              }
 else {
                failure.addSuppressed(exception);
              }
              continue;
            }
            sourceIsUsed[i]=true;
            if (failure != null) {
              Logging.recoverableException(Logging.getLogger(Loggers.COORDINATE_OPERATION),CoordinateOperationFinder.class,"String_Node_Str",failure);
            }
            return new SubOperationInfo(operation,startAtDimension,endAtDimension);
          }
        }
      }
    }
  }
  if (failure != null) {
    throw failure;
  }
  return null;
}

Fixed version (ground truth):
/** 
 * Searches in given list of source components for an operation capable to convert or transform coordinates to the given target CRS. If no such operation can be found, then this method returns   {@code null}.
 * @param caller       the object which is inferring a coordinate operation.
 * @param sourceIsUsed flags for keeping trace of which source has been used.
 * @param sources      all components of the source CRS.
 * @param target       one component of the target CRS.
 * @return information about a coordinate operation from a source CRS to the given target CRS, or {@code null}.
 * @throws FactoryException if an error occurred while grabbing a coordinate operation.
 */
static SubOperationInfo create(final CoordinateOperationFinder caller,final boolean[] sourceIsUsed,final List<? extends SingleCRS> sources,final SingleCRS target) throws FactoryException {
  OperationNotFoundException failure=null;
  final Class<?> targetType=type(target);
  for (  final Class<?>[] sourceTypes : COMPATIBLE_TYPES) {
    if (sourceTypes[0].isAssignableFrom(targetType)) {
      for (      final Class<?> sourceType : sourceTypes) {
        int startAtDimension;
        int endAtDimension=0;
        for (int i=0; i < sourceIsUsed.length; i++) {
          final SingleCRS source=sources.get(i);
          startAtDimension=endAtDimension;
          endAtDimension+=source.getCoordinateSystem().getDimension();
          if (!sourceIsUsed[i] && sourceType.isAssignableFrom(type(source))) {
            final CoordinateOperation operation;
            try {
              operation=caller.createOperation(source,target);
            }
 catch (            OperationNotFoundException exception) {
              if (failure == null) {
                failure=exception;
              }
 else {
                failure.addSuppressed(exception);
              }
              continue;
            }
            sourceIsUsed[i]=true;
            if (failure != null) {
              Logging.recoverableException(Logging.getLogger(Loggers.COORDINATE_OPERATION),CoordinateOperationFinder.class,"String_Node_Str",failure);
            }
            return new SubOperationInfo(operation,startAtDimension,endAtDimension);
          }
        }
      }
    }
  }
  if (failure != null) {
    throw failure;
  }
  return null;
}